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5 Weird Involuntary Behaviors Explained!
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Why we yawn, why we hiccup, twitchy eyes (and more)! Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/jtotheizzoe Our bodies do a lot of weird things, and many of them are completely involuntary. Why do we often jerk our bodies awake right before falling asleep? Why do we yawn? Why do we hiccup? Why do some people sneeze when they look at the sun? And why does your eye twitch? This week we'll look at the science behind these crazy involuntary behaviors! MY T-SHIRT: http://www.cognitive-surplus.com/product/science-is-magic-that-works-shirt-organic/ Read more: Aristotle's "Book of Problems" free online: http://www.gutenberg.org/files/12699/12699-h/12699-h.htm#BOOK_OF_PROBLEMS (it was probably not written by Aristotle, but instead collected after his death) Yawns: http://www.bbc.com/future/story/20140811-warning-this-may-make-you-yawn Eye twitches: http://www.straightdope.com/columns/read/1603/what-causes-my-eyelid-to-twitch Sun sneezes: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2821404/ Hiccups: http://www.bbc.com/future/story/20140127-do-hiccup-remedies-work Sleep twitches: http://www.bbc.com/future/story/20120522-suffer-from-sleep-shudders http://www.bbc.com/future/story/20120522-suffer-from-sleep-shudders Post-micturition convulsion syndrome: http://io9.com/5810102/the-science-of-pee-shivers Have an idea for an episode or an amazing science question you want answered? Leave a comment below! ----------------- It's Okay To Be Smart is written and hosted by Joe Hanson, Ph.DFollow me on Twitter: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart Google+ https://plus.google.com/+itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios Joe Hanson - Creator/Host/Writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer Andrew Matthews - Editing/Motion Graphics Katie Graham - Director of Photography John Knudsen - Gaffer Dalton Allen - Post-Production Intern Theme music: "Ouroboros" by Kevin MacLeod Other music via APM Stock images from Shutterstock ----------------- Last week's video: There's no such thing as cold: https://www.youtube.com/watch?v=Akd7MMRKDwc More videos: Why Are Some People Left-Handed? https://www.youtube.com/watch?v=NPvMUpcxPSA Why Did We Blow on NES Games? https://www.youtube.com/watch?v=4Gf9mtXnJfM The Science of Game of Thrones - https://www.youtube.com/watch?v=Utu-LpJn3Is There Was No First Human - https://www.youtube.com/watch?v=xdWLhXi24Mo How The Elements Got Their Names - https://www.youtube.com/watch?v=mtg9p6A6xnY
Views: 2082225 It's Okay To Be Smart
How Dogs Became Our Best Friends (ft. MinuteEarth!)
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Are you more of a cat person? Follow me to MinuteEarth to discover the origin of our feline friends! https://youtu.be/LWB0-tGwb_E ↓↓↓More info and sources below ↓↓↓ Of all the species that humans have domesticated, dogs are our oldest animal friends. But how did a group of wolves become the furry pup at the end of the bed? New research is finally unlocking the paw-in-hand evolution of dogs and humans. In this episode we’re answering one big question: Did we domesticate dogs, or did dogs domesticate us? Special thanks to our friends from MinuteEarth! ----------- REFERENCES: Frantz, Laurent AF, et al. "Genomic and archaeological evidence suggest a dual origin of domestic dogs." Science 352.6290 (2016): 1228-1231. Freedman, Adam H., and Robert K. Wayne. "Deciphering the Origin of Dogs: From Fossils to Genomes." Annual Review of Animal Biosciences 0 (2016). Freedman, Adam H., et al. "Genome sequencing highlights the dynamic early history of dogs." PLoS Genet 10.1 (2014): e1004016. Thalmann, Olaf, et al. "Complete mitochondrial genomes of ancient canids suggest a European origin of domestic dogs." Science 342.6160 (2013): 871-874. Wang, Guo-Dong, et al. "Out of southern East Asia: the natural history of domestic dogs across the world." Cell research 26.1 (2016): 21-33. ----------- FOLLOW US: Merch: https://store.dftba.com/collections/its-okay-to-be-smart Facebook: http://www.facebook.com/itsokaytobesmart Twitter: @okaytobesmart @DrJoeHanson Tumblr: http://www.itsokaytobesmart.com Instagram: @DrJoeHanson Snapchat: YoDrJoe ----------- It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D. Director: Joe Nicolosi Writer: Sarah Keartes Producer/editor/animator: Andrew Matthews Producer: Stephanie Noone and Amanda Fox Produced by PBS Digital Studios Music via APM Stock images from Shutterstock http://www.shutterstock.com
Views: 748612 It's Okay To Be Smart
Are We All Related?
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate This is part 3 of our special series on Human Ancestry! Watch the entire series here ►► http://bit.ly/OKTBSHuman ↓↓↓More info and sources below ↓↓↓ In part 3 of our special series on human ancestry, we investigate how closely related we all really are. Basic math tells us that all humans share ancestors. But you’ll be amazed at how recently those shared ancestors lived. Thanks to genetic data in the 21st century, we’re even discovering that we really are all descended from one mother. ----------- REFERENCES: Chang, Joseph T. "Recent common ancestors of all present-day individuals." Advances in Applied Probability 31.04 (1999): 1002-1026. Jorde, Lynn B. "Genetic variation and human evolution." (2003). Rohde, Douglas LT. "On the common ancestors of all living humans." (2003) Rohde, Douglas LT, Steve Olson, and Joseph T. Chang. "Modelling the recent common ancestry of all living humans." Nature 431.7008 (2004): 562-566. Stringer, Chris. “Lone survivors: How we came to be the only humans on earth.” Macmillan, 2012. http://amzn.to/2oIFg3q (Library: http://www.worldcat.org/oclc/855581724) Tattersall, Ian. “Masters of the planet: the search for our human origins.” Macmillan, 2012. http://amzn.to/2pOZrKS (Library: http://www.worldcat.org/oclc/733231407) ----------- FOLLOW US: Merch: https://store.dftba.com/collections/its-okay-to-be-smart Facebook: http://www.facebook.com/itsokaytobesmart Twitter: @okaytobesmart @DrJoeHanson Tumblr: http://www.itsokaytobesmart.com Instagram: @DrJoeHanson Snapchat: YoDrJoe ----------- It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D. Director: Joe Nicolosi Writer: Joe Hanson Producer/editor/animator: Andrew Matthews Producer: Stephanie Noone and Amanda Fox Produced by PBS Digital Studios Music via APM Stock images from Shutterstock http://www.shutterstock.com
Views: 5460513 It's Okay To Be Smart
Is Ultron Inevitable?  Featuring Vsauce3!
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Follow me to Vsauce3!! http://bit.ly/1zUxn7a Twitter: @okaytobesmart @jtotheizzoe Instagram: @jtotheizzoe ↓ More info and sources below ↓ Will artificial intelligence ever surpass human intelligence? And if that happens, will AI be good or bad? Is evil AI like we see in Avengers: Age of Ultron… inevitable? READ THIS FOR MORE: Wait But Why: The Road To Superintelligence Part 1: http://waitbutwhy.com/2015/01/artificial-intelligence-revolution-1.html Part 2: http://waitbutwhy.com/2015/01/artificial-intelligence-revolution-2.html The smiley face thought experiment is my take on the famous "paperclip maximizer", read more about it here: http://wiki.lesswrong.com/wiki/Paperclip_maximizer Special thanks to Jake from Vsauce3! Have an idea for an episode or an amazing science question you want answered? Leave a comment below! Follow on Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/jtotheizzoe ----------------- It's Okay To Be Smart is written and hosted by Joe Hanson, Ph.DFollow me on Twitter: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart Google+ https://plus.google.com/+itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios Joe Hanson - Creator/Host/Writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer Andrew Matthews - Editing/Motion Graphics/Animation Dan Silver - Production Assistant Dalton Allen - Post-Production Intern Theme music: "Ouroboros" by Kevin MacLeod Other music via APM Stock images from Shutterstock, stock footage from Videoblocks ----------------- Last week's video: Superbugs: The Empire Strikes Bacteria https://www.youtube.com/watch?v=fyRyZ1zKtyA More videos: Why Does February Have 28 Days? https://www.youtube.com/watch?v=AgKaHTh-_Gs Why Vaccines Work https://www.youtube.com/watch?v=3aNhzLUL2ys Why Are Some People Left-Handed? https://www.youtube.com/watch?v=NPvMUpcxPSA Where Does the Smell of Rain Come From? https://www.youtube.com/watch?v=lGcE5x8s0B8
Views: 1665438 It's Okay To Be Smart
Claude Monet Was Half Honeybee
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate The famous painter who was half-honeybee Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ Claude Monet had a very unique eye, and it can teach us a bit about the science of vision More reading: Monet's Eye at Download the Universe: http://www.downloadtheuniverse.com/dtu/2012/04/monets-ultraviolet-eye.html Simulation of Monet's Cataracts: http://archopht.jamanetwork.com/article.aspx?articleid=418859#MONET More: http://petapixel.com/2012/04/17/the-human-eye-can-see-in-ultraviolet-when-the-lens-is-removed/ http://www.skepticalartist.com/2013/06/25/claude-monet-and-ultraviolet-light-did-the-master-impressionist-painter-have-uv-supervision/ Music: Johann Sebastian Bach - Goldberg Variations (From The Open Goldberg Variations, by Kimiko Ishizaka ----------------- Have an idea for an episode or an amazing science question you want answered? Leave a comment below! Follow me on Twitter: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Joe Hanson - Host and writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer Katie Graham - Director of Photography Andrew Matthews - Editor and motion graphics John Knudsen - Gaffer Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios ----------- Last week's video: The Science of Snowflakes: http://www.youtube.com/watch?v=fUot7XSX8uA More videos: The Universe In A Glass of Wine: https://www.youtube.com/watch?v=b3_n7TDL7lc Why We Cook: http://www.youtube.com/watch?v=Wpfwu__PF7Y Ghosts of Evolution: https://www.youtube.com/watch?v=ZWW5OuxlKec
Views: 521700 It's Okay To Be Smart
Attack of the Cosmic Space Junk!
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate No Sandra Bullocks were harmed in the making of this video. Tweet this video ⇒ http://bit.ly/OKTBSjunk Share on FB ⇒ http://bit.ly/OKTBSjunkFB ↓ More info and sources below ↓ Window chip in the ISS: http://www.esa.int/spaceinimages/Images/2016/05/Impact_chip The extent of space debris: http://www.esa.int/spaceinvideos/Videos/2013/04/Space_debris_story Where did all that debris come from? http://blogs.scientificamerican.com/guest-blog/where-did-all-that-space-debris-come-from/ USSTRATCOM space surveillance fact sheet: https://www.stratcom.mil/factsheets/11/Space_Control_and_Space_Surveillance/ This is cool: http://stuffin.space/ Every satellite orbiting Earth, visualized: http://qz.com/296941/interactive-graphic-every-active-satellite-orbiting-earth/ 8 weird pieces of space junk: http://www.wired.com/2009/02/spacestuff/ Project West Ford: http://www.wired.com/2013/08/project-west-ford/ STK animation courtesy of Analytical Graphics, Inc. Get yourself an awesome IOTBS shirt! http://dftba.com/besmart ---------------- It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D. Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below! Facebook: http://www.facebook.com/itsokaytobesmart Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Tumblr: http://www.itsokaytobesmart.com Instagram: http://instagram.com/jtotheizzoe Snapchat: YoDrJoe Produced by PBS Digital Studios Music via APM Stock images from SciencePhoto http://www.sciencephoto.com/ and Shutterstock http://www.shutterstock.com Stock footage from Videoblocks (unless otherwise noted) http://www.videoblocks.com
Views: 366123 It's Okay To Be Smart
How Do Bees Make Honey?
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Let PBS know more about you and what digital series you’d like to see: http://surveymonkey.com/r/pbsds2016 Tweet this ⇒ http://bit.ly/OKTBShunE Share on FB ⇒ http://bit.ly/OKTBShunEfb ↓ More info and sources below ↓ Check out our BEE PLAYLIST! http://bit.ly/OKTBSbeelist The Honey Bee Dance Language Explained: https://www.cals.ncsu.edu/entomology/apiculture/pdfs/1.11%20copy.pdf Being a queen is about more than royal jelly: Mao, Wenfu, Mary A. Schuler, and May R. Berenbaum. "A dietary phytochemical alters caste-associated gene expression in honey bees."Science advances 1.7 (2015): e1500795 Multiple phenotypes coming from the same genetics (like workers and queens) is called “polyphenism” https://en.wikipedia.org/wiki/Polyphenism The social structure of honeybee hives: https://hymenoptera42.wordpress.com/2013/02/15/the-social-structure-of-honey-bees/ The following clips were used under Creative Commons CC-BY license: Mary Ann Aschenbrennerhttps://www.youtube.com/watch?v=VG6tWrcy3mQ BeesOnTheNet https://www.youtube.com/watch?v=OEMg_F1yUJk Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below! Follow on Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/jtotheizzoe Follow on Snapchat: YoDrJoe ----------------- It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D. Follow me on Twitter: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigita... Music via APM Stock images from Shutterstock, stock footage from Videoblocks (unless otherwise noted)
Views: 1502104 It's Okay To Be Smart
Is Sugar a Drug?
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Here’s a sweet idea: Subscribe! http://bit.ly/iotbs_sub Tweet this video ⇒ http://bit.ly/OKTBSsug Share on FB ⇒ http://bit.ly/OKTBSsugFB ↓ More info and sources below ↓ Want to wear your love for science? We’ve got merch: http://dftba.com/besmart American sugar consumption: http://www.cdc.gov/nchs/data/databriefs/db122.pdf http://www.ers.usda.gov/data-products/sugar-and-sweeteners-yearbook-tables.aspx#25512 http://www.usda.gov/factbook/chapter2.pdf Avena, Nicole M., Pedro Rada, and Bartley G. Hoebel. "Evidence for sugar addiction: behavioral and neurochemical effects of intermittent, excessive sugar intake." Neuroscience & Biobehavioral Reviews 32.1 (2008): 20-39. Breslin, Paul AS. "An evolutionary perspective on food and human taste."Current Biology 23.9 (2013): R409-R418. Goodman, Jarid, and Mark G. Packard. "Memory systems and the addicted brain." Frontiers in psychiatry 7 (2016). Kearns, Cristin E., Laura A. Schmidt, and Stanton A. Glantz. "Sugar industry and coronary heart disease research: a historical analysis of internal industry documents." JAMA Internal Medicine (2016) Lerma-Cabrera, Jose Manuel, Francisca Carvajal, and Patricia Lopez-Legarrea. "Food addiction as a new piece of the obesity framework." Nutrition journal 15.1 (2016): 1. Mintz, Sidney. "Sweetness and power: the place of sugar in world history."Viking, New York (1985) Volkow, Nora D., Gene-Jack Wang, and Ruben D. Baler. "Reward, dopamine and the control of food intake: implications for obesity." Trends in cognitive sciences 15.1 (2011): 37-46. ---------------- It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D. Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below! Facebook: http://www.facebook.com/itsokaytobesmart Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Tumblr: http://www.itsokaytobesmart.com Instagram: http://instagram.com/jtotheizzoe Snapchat: YoDrJoe Produced by PBS Digital Studios Music via APM Stock images from SciencePhoto http://www.sciencephoto.com/ and Shutterstock http://www.shutterstock.com
Views: 775119 It's Okay To Be Smart
Why Don't Other Animals Wear Glasses?
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Check out The Great Courses Plus: http://ow.ly/OE9y301cRfI Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Get yourself an awesome IOTBS shirt! http://dftba.com/besmart This is a cool old movie from 1941 about how the eye works: https://archive.org/details/0586_How_the_Eye_Functions_E00456_04_22_16_00 Dive deeper into the physics of vision correction with Michel van Biezen: https://www.youtube.com/playlist?list=PLX2gX-ftPVXXf2ZaG_1SXAYbVcifI6gvr Myopia boom in modern times: http://www.nature.com/news/the-myopia-boom-1.17120 Limits to human vision: http://www.ncbi.nlm.nih.gov/pubmed/11019869 ---- Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below! Like us on Facebook: http://www.facebook.com/itsokaytobesmart Follow on Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/jtotheizzoe Follow on Snapchat: YoDrJoe ----------------- It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D. Follow me on Twitter: @jtotheizzoe Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios Music via APM Stock images from SciencePhoto http://www.sciencephoto.com/ and Shutterstock http://www.shutterstock.com Stock footage from Videoblocks (unless otherwise noted) http://www.videoblocks.com
Views: 1148042 It's Okay To Be Smart
What Is Fire?
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate We've got T-SHIRTS! http://dftba.com/besmart Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Why does fire burn? What's the chemistry and physics of a flame? This week, learn about the beautiful science happening inside a flame! Michael Faraday's Christmas lectures on candle chemistry: http://blogs.scientificamerican.com/cocktail-party-physics/christmas-with-faraday-the-chemical-history-of-a-candle/ http://www.bartleby.com/30/7.html Flames in space: http://science.nasa.gov/science-news/science-at-nasa/2013/18jun_strangeflames/ Richard Feynman talking about fire: http://www.itsokaytobesmart.com/post/27299255757/fun-with-feynman-fire-you-cant-help-but-smile Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below! Follow on Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/jtotheizzoe ----------------- It's Okay To Be Smart is written and hosted by Joe Hanson, Ph.DFollow me on Twitter: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart Google+ https://plus.google.com/+itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios Joe Hanson - Creator/Host/Writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen IncKate Eads - Producer Andrew Matthews - Editing/Motion Graphics/Animation Katie Graham - Camera John Knudsen - Gaffer Theme music: "Ouroboros" by Kevin MacLeod Other music via APM Stock images from Shutterstock, stock footage from Videoblocks ----------------- More videos: Why Does February Have 28 Days? https://www.youtube.com/watch?v=AgKaHTh-_Gs Why Vaccines Work https://www.youtube.com/watch?v=3aNhzLUL2ys Why Are Some People Left-Handed? https://www.youtube.com/watch?v=NPvMUpcxPSA Where Does the Smell of Rain Come From? https://www.youtube.com/watch?v=lGcE5x8s0B8
Views: 1274412 It's Okay To Be Smart
There's No Such Thing As Cold
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate If cold isn't real, then how can I feel it? Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/jtotheizzoe You've felt cold before. Sometimes it's cold outside. But what if I told you that "cold" isn't real? There's no substance or quantity called "cold" in science. We can't measure the amount of "cold" in something. Instead it's about what's NOT there. In this week's video, learn the difference between heat and temperature, why a wind makes us feel colder, and what it's like to live as a mass of jiggling atoms. This is the physics of cold Cool PBS NOVA episode on the search for absolute zero: https://www.youtube.com/watch?v=y2jSv8PDDwA Richard Feynman on jiggling atoms: http://youtu.be/v3pYRn5j7oI The movement of atoms in a wind: http://www.newton.dep.anl.gov/askasci/chem03/chem03448.htm Why a breeze feels cool: http://physics.stackexchange.com/questions/72163/why-does-a-breeze-of-wind-make-us-feel-cooler Density of the interstellar medium: http://en.wikipedia.org/wiki/Interstellar_medium Have an idea for an episode or an amazing science question you want answered? Leave a comment below! ----------------- It's Okay To Be Smart is written and hosted by Joe Hanson, Ph.DFollow me on Twitter: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart Google+ https://plus.google.com/+itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios Joe Hanson - Creator/Host/Writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer Andrew Matthews - Editing/Motion Graphics Katie Graham - Director of Photography John Knudsen - Gaffer Dalton Allen - Post-Production Intern Theme music: "Ouroboros" by Kevin MacLeod Other music via APM Stock images from Shutterstock ----------------- Last week's video: How many smells can you smell? https://www.youtube.com/watch?v=-yEtBps-BnI More videos: Why Are Some People Left-Handed? https://www.youtube.com/watch?v=NPvMUpcxPSA Why Did We Blow on NES Games? https://www.youtube.com/watch?v=4Gf9mtXnJfM The Science of Game of Thrones - https://www.youtube.com/watch?v=Utu-LpJn3Is There Was No First Human - https://www.youtube.com/watch?v=xdWLhXi24Mo How The Elements Got Their Names - https://www.youtube.com/watch?v=mtg9p6A6xnY
Views: 1181990 It's Okay To Be Smart
The Equinox Isn't What You Think It Is
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Is the equinox really when day = night? Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ Calculate day length where you live for any date: http://www.timeanddate.com/sun/ Very cool solar angle simulator: http://astro.unl.edu/classaction/animations/coordsmotion/eclipticsimulator.html Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below! Follow on Twitter: http://twitter.com/okaytobesmart http://twitter.com/DrJoeHanson Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/DrJoeHanson Follow on Snapchat: YoDrJoe ----------------- It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D. Follow me on Twitter: @DrJoeHanson Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios Music via APM Stock images from Shutterstock, stock footage from Videoblocks (unless otherwise noted)
Views: 420024 It's Okay To Be Smart
Why Don’t Woodpeckers Get Concussions?
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Don’t be hard-headed. You should SUBSCRIBE! http://bit.ly/iotbs_sub Tweet this video ⇒ http://bit.ly/OKTBSbang Share on FB ⇒ http://bit.ly/OKTBSbangFB ↓ More info and sources below ↓ Translate this video: LINK TKTK Want to wear your love for science? We’ve got merch: http://dftba.com/besmart -We’d like to thank these folks- Special thanks to Dr. Lorna Gibson of MIT for her woodpecker biomechanics expertise Three-dimensional reconstructions based on CT data courtesy of DigiMorph.org Pileated woodpecker slo-mo footage courtesy of Dr. Robert Shadwick/University of British Columbia -References/Learn More- Daneshvar, Daniel H., et al. "The epidemiology of sport-related concussion." Clinics in sports medicine 30.1 (2011): 1-17. Gibson, L. J. "Woodpecker pecking: how woodpeckers avoid brain injury." Journal of Zoology 270.3 (2006): 462-465. Haldane, John BS. "On being the right size." Harper’s Magazine 152 (1926): 424-427. Maroon, Joseph C., et al. "Chronic traumatic encephalopathy in contact sports: a systematic review of all reported pathological cases." PloS one 10.2 (2015): e0117338. May, Philip RA, et al. "Woodpecker drilling behavior: an endorsement of the rotational theory of impact brain injury." Archives of Neurology 36.6 (1979): 370-373. Schwab, Ivan R. "Cure for a headache." British Journal of Ophthalmology86.8 (2002): 843-843. Wang, Lizhen, et al. "Why do woodpeckers resist head impact injury: a biomechanical investigation." PloS one 6.10 (2011): e26490. ---------------- It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D. Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below! Facebook: http://www.facebook.com/itsokaytobesmart Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Tumblr: http://www.itsokaytobesmart.com Instagram: http://instagram.com/jtotheizzoe Snapchat: YoDrJoe Produced by PBS Digital Studios Music via APM Stock images from SciencePhoto http://www.sciencephoto.com/ and Shutterstock http://www.shutterstock.com
Views: 1092561 It's Okay To Be Smart
Your Salad Is Trying To Kill You
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate The dose makes the poison… Subscribe: http://bit.ly/iotbs_sub Twitter: @jtotheizzoe @okaytobesmart ↓ More info and sources below ↓ CORRECTION: @2:14 we showed the wrong Paul Ehrlich (guy on the left). Instead of Paul Ehrlich the German doctor, we meant to show Paul Ehrlich the biologist: https://en.wikipedia.org/wiki/Paul_R._Ehrlich Plants are the most important source of nutrients for pretty much all of Earth's animals, and many of the planet's bacteria and fungi too. Humans like them so much that we line them up in salad bars so we can feast upon their crunchy cronch by the plate full. But plants don't always want to be eaten, ya know? Here's a look at some of our favorite plant flavors and how they are actually a form of chemical warfare We owe caterpillars for spicy mustard: http://www.pnas.org/content/early/2015/06/17/1503926112.abstract http://munews.missouri.edu/news-releases/2015/0622-genetic-study-of-co-evolution-could-provide-clues-to-better-food-production/ Overview of plant chemical defenses and what we use them for in the kitchen: http://www.apsnet.org/edcenter/intropp/topics/Pages/OverviewOfPlantDiseases.aspx Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below! Follow on Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/jtotheizzoe ----------------- It's Okay To Be Smart is written and hosted by Joe Hanson, Ph.DFollow me on Twitter: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart Google+ https://plus.google.com/+itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios Joe Hanson - Creator/Host/Writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen IncKate Eads - Producer Andrew Matthews - Editing/Motion Graphics/Animation Katie Graham - Camera John Knudsen - Gaffer Theme music: "Ouroboros" by Kevin MacLeod Other music via APM Stock images from Shutterstock, stock footage from Videoblocks ----------------- More videos: Why Does February Have 28 Days? https://www.youtube.com/watch?v=AgKaHTh-_Gs Why Vaccines Work https://www.youtube.com/watch?v=3aNhzLUL2ys Why Are Some People Left-Handed? https://www.youtube.com/watch?v=NPvMUpcxPSA Where Does the Smell of Rain Come From? https://www.youtube.com/watch?v=lGcE5x8s0B8
Views: 1091476 It's Okay To Be Smart
What is Déjà Vu?!
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate I feel like I've seen this video before… Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/jtotheizzoe Most of us have felt it before, that strange sensation that you've been somewhere or seen something before, as if you already remembered what's happening. Are you psychic? Nope, that's just déjà vu. Why does déjà vu happen? Well, scientists aren't completely sure, but they've got a few good theories about it. Great déjà vu explainer from Jordan Gaines Lewis: http://www.gainesonbrains.com/2012/02/seeing-into-future-neuroscience-of-deja.html Some theories of why déjà vu happens: http://theconversation.com/explainer-what-is-deja-vu-and-why-does-it-happen-11355 And now for something completely different: https://www.youtube.com/watch?v=G2eUopy9sd8 Special thanks to Austin's Corona Cafe! Cast: Waiter - Joe Nicolosi (he's also the director) Sneezing girl - Kate Eads (she's also associate producer) Guy spilling coffee - John Knudesn (he's also gaffer) Have an idea for an episode or an amazing science question you want answered? Leave a comment below! ----------------- It's Okay To Be Smart is written and hosted by Joe Hanson, Ph.DFollow me on Twitter: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart Google+ https://plus.google.com/+itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios Joe Hanson - Creator/Host/Writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer Andrew Matthews - Editing/Motion Graphics Katie Graham - Director of Photography John Knudsen - Gaffer Dalton Allen - Post-Production Intern Theme music: "Ouroboros" by Kevin MacLeod Other music via APM Stock images from Shutterstock ----------------- Last week's video: 5 Weird Involuntary Behaviors Explained: http://www.youtube.com/watch?v=ZE8sRMZ5BCA More videos: Why Are Some People Left-Handed? https://www.youtube.com/watch?v=NPvMUpcxPSA Why Did We Blow on NES Games? https://www.youtube.com/watch?v=4Gf9mtXnJfM The Science of Game of Thrones - https://www.youtube.com/watch?v=Utu-LpJn3Is There Was No First Human - https://www.youtube.com/watch?v=xdWLhXi24Mo How The Elements Got Their Names - https://www.youtube.com/watch?v=mtg9p6A6xnY
Views: 1998178 It's Okay To Be Smart
What Color is the Universe?
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Hint: It's not black Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ When you stare up at the night sky, you might think that the universe is really black, but that's just because our eyes aren't sensitive enough to see the billions and billions of multicolored stars out there. Ever wonder why certain stars are certain colors? And what color is our sun, really? If we looked at enough stars, could we figure out the average color of the universe? Read more: Stellar classification: http://en.wikipedia.org/wiki/Stellar_classification What color is the sun: http://casa.colorado.edu/~ajsh/colour/Tspectrum.html Star colors in hex code: http://blogs.discovermagazine.com/badastronomy/2010/03/10/a-hex-on-star-colors/#.VPPRvVPF-xA Color of the Milky Way: http://www.news.pitt.edu/milkywaycolor Average color of the universe (cosmic latte): http://apod.nasa.gov/apod/ap020702.html Have an idea for an episode or an amazing science question you want answered? Leave a comment below! Follow on Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/jtotheizzoe ----------------- It's Okay To Be Smart is written and hosted by Joe Hanson, Ph.D Follow me on Twitter: @DrJoeHanson Instagram: @DrJoeHanson Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios Joe Hanson - Creator/Host/Writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer Andrew Matthews - Editing/Motion Graphics/Animation Katie Graham - Director of Photography John Knudsen - Gaffer Dalton Allen - Post-Production Intern Theme music: "Ouroboros" by Kevin MacLeod Other music via APM Stock images from Shutterstock ----------------- Last week's video: Attack of the Zombie Parasites https://www.youtube.com/watch?v=AgCQStTSMuk More videos: Why Does February Have 28 Days? https://www.youtube.com/watch?v=AgKaHTh-_Gs Why Vaccines Work https://www.youtube.com/watch?v=3aNhzLUL2ys Why Are Some People Left-Handed? https://www.youtube.com/watch?v=NPvMUpcxPSA Where Does the Smell of Rain Come From? https://www.youtube.com/watch?v=lGcE5x8s0B8
Views: 548703 It's Okay To Be Smart
When Is It Winter On Other Planets?
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Try CuriosityStream today: http://curiositystream.com/smart Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ Earth has seasons, but what about the rest of the planets in the solar system? Let’s take a tour from Mercury to Pluto and see what seasons would be like on all our planetary neighbors. Bring a sweater! LEARN MORE: NASA Planet Fact Sheet: https://nssdc.gsfc.nasa.gov/planetary/factsheet/ Winds of Mars: http://bit.ly/2wvlH3p Lakes of Titan: https://sites.google.com/site/alexanderghayes/Research/Titans-Lakes http://www.nature.com/nature/journal/v481/n7379/full/nature10666.html?foxtrotcallback=true#ref7 ----------- FOLLOW US: Merch: https://store.dftba.com/collections/its-okay-to-be-smart Facebook: http://www.facebook.com/itsokaytobesmart Twitter: @okaytobesmart @DrJoeHanson Tumblr: http://www.itsokaytobesmart.com Instagram: @DrJoeHanson Snapchat: YoDrJoe ----------- It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D. Director: Joe Nicolosi Writer: Matt Caplan, PhD Editor/animator: Sean Lane/Joe Nicolosi Producer: Stephanie Noone and Amanda Fox Produced by PBS Digital Studios Music via APM Stock images from Shutterstock http://www.shutterstock.com
Views: 606887 It's Okay To Be Smart
Why BEAVERS Are The Smartest Thing In Fur Pants
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Leave it to beavers! Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ Beavers have done more to shape North American landscapes than any animal beside humans. We don’t notice them much today because there aren’t many left, but before colonization, North America was home to hundreds of millions of these furry engineers. This week, we show you why Earth’s second largest rodent is more amazing than you ever knew, and why they’re the smartest thing in fur pants. Special thanks to Josh Cassidy from KQED’s Deep Look for joining me in Alaska and shooting this episode! ► https://www.youtube.com/user/KQEDDeepLook Filmed under a Special Use Permit on the Juneau Ranger District, Tongass National Forest Special thanks to Chuck Caldwell and Juneau Beaver Patrol ----------- READ MORE: “Once They Were Hats: In Search of the Mighty Beaver” - Francis Backhouse http://amzn.to/2tfmLTZ “The Beaver: Natural History of a Wetlands Engineer” - Dietland Müller-Schwarze and Lixing Sun http://www.worldcat.org/oclc/977989893 ----------- FOLLOW US: Merch: https://store.dftba.com/collections/its-okay-to-be-smart Facebook: http://www.facebook.com/itsokaytobesmart Twitter: @okaytobesmart @DrJoeHanson Tumblr: http://www.itsokaytobesmart.com Instagram: @DrJoeHanson Snapchat: YoDrJoe ----------- It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D. Director: Joe Nicolosi Writer: Shaena Montanari Camera: Josh Cassidy Producer/editor/animator: Andrew Matthews Producer: Stephanie Noone and Amanda Fox Produced by PBS Digital Studios Music via APM Stock images from Shutterstock http://www.shutterstock.co
Views: 760429 It's Okay To Be Smart
How Habits Change Your Brain
 
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You have the power to change your brain! Make watching our videos a habit and SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ Got a bad habit you just can’t seem to break? That’s because it’s literally wired into your brain. Every single thought, action, and feeling changes your brain. When repeated enough times, a habit is formed. This week we’ll talk about how an advertiser in the early 1900s got half of Americans to pick up a new behavior - and make it a habit we all know today. REFERENCES: The power of habit: Why we do what we do in life and in business, Charles Duhill, 2012. Smith, K. (2016). Habit formation. Dialogues Clin Neurosci, 18(1), 33–43. Schultz, W., Apicella, P., and Ljungbergb , T. (1993). Responses of Monkey Dopamine Neurons to Reward and Conditioned Stimuli during Successive Steps of Learning a Delayed Response Task. The Journal of Neuroscience, 13(3), 900-913 Christina M.Gremel, C. M., Chancey, J.H., Atwood, B.K., Luo, G., Neve, R., Ramakrishnan, C., Deisseroth, K., Lovinger, D.M., and Costa, R.M. (2016). Endocannabinoid Modulation of Orbitostriatal Circuits Gates Habit Formation. Neuron, 93(6), 1312-1324. ----------- FOLLOW US: Twitter: @DrJoeHanson @okaytobesmart Instagram: @DrJoeHanson Merch: https://store.dftba.com/collections/its-okay-to-be-smart Facebook: http://www.facebook.com/itsokaytobesmart SEND US STUFF: It’s Okay To Be Smart PO Box 303356 Austin, TX 78703 USA BOOKS WE’VE FEATURED: http://smart-books.tumblr.com/ ----------- It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D. Director: Joe Nicolosi Writer: Kimberly McCoy, Ph.D. Creative Director: David Schulte Editor/animator: Karl Boettcher Producers: Stephanie Noone and Amanda Fox Produced by PBS Digital Studios Music via APM Stock images from Shutterstock http://www.shutterstock.com
Views: 339433 It's Okay To Be Smart
How to See Time Travel!!!
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Behold the COSMOTRON 5000!!! Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/jtotheizzoe How to build your own cloud chamber particle detector and test relativity at home: http://www.fromquarkstoquasars.com/make-a-cosmic-ray-detector-at-home-and-test-relativity/ Carl Sagan discusses cosmic radiation and the origin of life in "Cosmic Connection": http://amzn.to/1wiHIsu Learn about muons, time dilation, and relativity: http://cosmic.lbl.gov/SKliewer/Cosmic_Rays/Muons.htm ----------------- Have an idea for an episode or an amazing science question you want answered? Leave a comment below! Follow me on Twitter: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart Google+ https://plus.google.com/+itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios Joe Hanson - Host and writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer Katie Graham - Director of Photography Andrew Matthews - Editing/Motion Graphics John Knudsen - Gaffer Dalton Allen - Post-production Intern Theme music: "Ouroboros" by Kevin MacLeod ----------------- Last week's video: The Structure of the Earth https://www.youtube.com/watch?v=WwiiOjyfvAU More videos: Why Did We Blow on NES Games? https://www.youtube.com/watch?v=4Gf9mtXnJfM The Science of Game of Thrones - https://www.youtube.com/watch?v=Utu-LpJn3Is The Far Future of the Universe - https://www.youtube.com/watch?v=Jl9DwNOonOA There Was No First Human - https://www.youtube.com/watch?v=xdWLhXi24Mo How The Elements Got Their Names - https://www.youtube.com/watch?v=mtg9p6A6xnY
Views: 622845 It's Okay To Be Smart
Are You Smarter Than A Slime Mold?
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Follow me to Deep Look! https://youtu.be/Nx3Uu1hfl6Q ↓ More info and sources below ↓ I really hope you guys check out Deep Look, it’s one of my favorite channels, full of great 4K, micro-world goodness! http://goo.gl/8NwXqt Many thanks to Prof. Andy Adamatzky (UWE Bristol) for slime mold culturing advice. Special thanks to the following for providing Dictyostelium microscope footage: Prof. John Bonner (Princeton) Prof. David Knecht (Univ. of Connecticut) Prof. Richard Firtel (UCSD) Prof. Jeremy Pickett-Heaps (Univ. of Melbourne) References/further reading: “Intelligence in Nature” by Jeremy Narby http://amzn.to/23HvtKG “The Social Amoebae - The Biology of Cellular Slime Molds” by John Bonner http://amzn.to/1MEmmCR Nakagaki, Toshiyuki. "Smart behavior of true slime mold in a labyrinth."Research in Microbiology 152.9 (2001): 767-770. Nakagaki, Toshiyuki, Hiroyasu Yamada, and Masahiko Hara. "Smart network solutions in an amoeboid organism." Biophysical chemistry 107.1 (2004): 1-5. Adamatzky, Andrew. Physarum machines: computers from slime mould. Vol. 74. World Scientific, 2010. Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below! Like us on Facebook: http://www.facebook.com/itsokaytobesmart Follow on Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/jtotheizzoe Follow on Snapchat: YoDrJoe ----------------- It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D. Follow me on Twitter: @jtotheizzoe Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios Music via APM Stock images from Shutterstock http://www.shutterstock.com Stock footage from Videoblocks (unless otherwise noted) http://www.videoblocks.com
Views: 707917 It's Okay To Be Smart
Do Plants Think?
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Get yourself an awesome I DID A SCIENCE shirt! http://dftba.com/besmart Tweet this video ⇒ http://bit.ly/OKTBSplant Share on FB ⇒ http://bit.ly/OKTBSplantFB ↓ More info and sources below ↓ Learn more/references: “What a Plant Knows” by Daniel Chamovitz http://amzn.to/2bfvdOg “The Secret Life of Plants” by Peter Tompkins and Christopher Bird http://amzn.to/2bczCTf (this book is full of bad science mumbo jumbo, but it’s where the Cleve Backster story comes from) Galil, J. "An ancient technique for ripening sycomore fruit in east-mediterranean countries." Economic Botany 22.2 (1968): 178-190. Kost, C., & Heil, M. (2008). The Defensive Role of Volatile Emission and Extrafloral Nectar Secretion for Lima Bean in Nature. Journal of Chemical Ecology, 34(1), 2–13. http://doi.org/10.1007/s10886-007-9404-0 Gerbode, Sharon J., et al. "How the cucumber tendril coils and overwinds."Science 337.6098 (2012): 1087-1091. Darwin’s writings on vines and climbing plants: http://darwin-online.org.uk/content/frameset?itemID=F836&viewtype=text&pageseq=1 Darwin’s writings on plant movement: http://darwin-online.org.uk/EditorialIntroductions/Freeman_ThePowerofMovementinPlants.html ---------------- It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D. Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below! Facebook: http://www.facebook.com/itsokaytobesmart Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Tumblr: http://www.itsokaytobesmart.com Instagram: http://instagram.com/jtotheizzoe Snapchat: YoDrJoe Produced by PBS Digital Studios Music via APM Stock images from SciencePhoto http://www.sciencephoto.com/ and Shutterstock http://www.shutterstock.com
Views: 724537 It's Okay To Be Smart
The Science of Game of Thrones
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate You know nothingSUBSCRIBE, it's FREE! http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Valar more-curious! WINTER: Seasons of Westeros and the 3-body problem: http://arxiv.org/pdf/1304.0445v1.pdf Other possible explanations for the seasons: http://io9.com/5906300/5-scientific-explanations-for-game-of-thrones-messed-up-seasons Why those other reasons are wrong: http://bit.ly/1hYuRDJ http://boingboing.net/2012/05/14/great-moments-in-pedantry-win.html http://www.sciencedirect.com/science/article/pii/S0019103511004064 http://en.wikipedia.org/wiki/Milankovitch_cycles NOTE ON MOONS AND STABILIZATION: I'm adding this comment after the video goes up: In retrospect I should have said that a moon doesn't *necessarily* have to be present to stabilize a planet. While our moon does cancel out some tugging from the other planets in the solar system, here's a recent paper shows that moonless planets can orbit with great stability even without the influence of a moon. Basically moons aren't required for stability: http://barnesos.net/publications/papers/2012.01.Icarus.Barnes.Moonless.Earth.pdf Even more reasons for the seasons: http://www.tor.com/blogs/2011/05/how-seasons-qworkq-in-a-song-of-ice-and-fire GEOLOGY: Generation Anthropocene's AMAZING geologic history of Westeros and Essos: http://www.stanford.edu/group/anthropocene/cgi-bin/wordpress/game-of-thrones-geology/ VALYRIAN STEEL: Damascus steel: http://en.wikipedia.org/wiki/Damascus_steel DRAGON FIRE: Kyle Hill's explanation for real-life dragon fire: http://blogs.scientificamerican.com/but-not-simpler/2014/01/02/smaug-breathes-fire-like-a-bloated-bombardier-beetle-with-flinted-teeth/ DRAGON FLIGHT: Dragon-sized birds are biologically impossible: http://wapo.st/1lBV2RE WILDFIRE: Greek fire: http://www.sciforums.com/what-is-greek-fire-t-68540.html Trimethyl borate flame by hkparker: https://www.youtube.com/watch?v=6OrisgbsRmg MILK OF POPPY: Opates: http://en.wikipedia.org/wiki/Opium THE WALL: Compression melting of ice: http://www.reddit.com/r/askscience/comments/1qkdl0/can_ice_be_compressed_into_water/ DIRE WOLVES: Canis dirus: http://en.wikipedia.org/wiki/Dire_wolf REAL-LIFE CHARACTERS: Abandon all productivity ye who click here: http://history-behind-game-of-thrones.com Stark/Lannister feud in real life tapestry: http://history-behind-game-of-thrones.com/wp-content/uploads/2014/03/porte_saint_denis170-753x1024.jpg ----------------- Have an idea for an episode or an amazing science question you want answered? Leave a comment below! Follow me on Twitter: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart Google+ https://plus.google.com/+itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Joe Hanson - Host and writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer Katie Graham - Director of Photography Edited by Stephanie Noone and Kirby Conn from Arts & Labor John Knudsen - Gaffer Music: "Ouroboros" by Kevin MacLeod Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios ----------- Last week's video: Maternal Connections - https://www.youtube.com/watch?v=YVqjXwB-mcU More videos: The Far Future of the Universe - https://www.youtube.com/watch?v=Jl9DwNOonOA The Science of Dust - https://www.youtube.com/watch?v=8qZk2OMuaeg There Was No First Human - https://www.youtube.com/watch?v=xdWLhXi24Mo How The Elements Got Their Names - https://www.youtube.com/watch?v=mtg9p6A6xnY
Views: 1681770 It's Okay To Be Smart
Do You Really Have Two Brains?
 
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Viewers like you help make PBS (Thank you ) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate You're gonna lobe this video Don't miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ Are you a left-brained person or a right-brained person? Spoiler: You're neither. Each of us uses both sides of our brain for most of what we do. But still, there are a number of brain functions that do show lateralization, where they are localized to one side or another. Why is this? And how does it influence our definition of consciousness? People with "split brains" can help us figure it out. Special thanks to Dr. Michael Gazzaniga for his help researching this video! Here's a wonderful vintage film featuring Dr. Gazzaniga's early split brain work: https://archive.org/details/splitbrain ----------- READ MORE: Gazzaniga, Michael S. "Forty-five years of split-brain research and still going strong." Nature reviews. Neuroscience 6.8 (2005): 653. http://bit.ly/2ymOh55 Gazzaniga, Michael S. "The split-brain: Rooting consciousness in biology." Proceedings of the National Academy of Sciences 111.51 (2014): 18093-18094. http://bit.ly/2yoacZo ----------- FOLLOW US: Merch: https://store.dftba.com/collections/its-okay-to-be-smart Facebook: http://www.facebook.com/itsokaytobesmart Twitter: @okaytobesmart @DrJoeHanson Tumblr: http://www.itsokaytobesmart.com Instagram: @DrJoeHanson Snapchat: YoDrJoe ----------- It's Okay To Be Smart is hosted by Joe Hanson, Ph.D. Director: Joe Nicolosi Writer: Shaena Montanari, Ph.D. Editor/animator: Andrew Orsak Producer: Stephanie Noone and Amanda Fox Produced by PBS Digital Studios Music via APM Stock images from Shutterstock http://www.shutterstock.com
Views: 377861 It's Okay To Be Smart
CRISPR and the Future of Human Evolution
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Part 4 of our special series on Human Ancestry. Watch it all ►► http://bit.ly/OKTBSHuman Watch Mutant Menu on BrainCraft: https://youtu.be/NrDM6Ic2xMM ↓↓↓More info and sources below ↓↓↓ In part 4 of our special series on human ancestry and evolution, we look into the future. Now that genetic engineering tools like CRISPR allow us to edit our genes, how will that impact human evolution going forward? Are designer babies or eugenics around the corner? Welcome to a world of nonrandom mutation and unnatural selection. ----------- REFERENCES: WHO fact sheet on obesity risks and death vs underweight: http://www.who.int/mediacentre/factsheets/fs311/en/ Jinek, M., Chylinski, K., Fonfara, I., Hauer, M., Doudna, J. A., & Charpentier, E. (2012). A programmable dual-RNA–guided DNA endonuclease in adaptive bacterial immunity. Science, 337(6096), 816-821. Knoepfler, P. (2015). GMO Sapiens: the life-changing science of designer babies. World Scientific. Enriquez, J., & Gullans, S. (2015). Evolving Ourselves. Oneworld Publications. ----------- FOLLOW US: Merch: https://store.dftba.com/collections/its-okay-to-be-smart Facebook: http://www.facebook.com/itsokaytobesmart Twitter: @okaytobesmart @DrJoeHanson Tumblr: http://www.itsokaytobesmart.com Instagram: @DrJoeHanson Snapchat: YoDrJoe ----------- It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D. Director: Joe Nicolosi Writer: Joe Hanson Producer/editor/animator: Andrew Matthews Producer: Stephanie Noone and Amanda Fox Produced by PBS Digital Studios Music via APM Stock images from Shutterstock http://www.shutterstock.com
Views: 627715 It's Okay To Be Smart
Why Nature Loves Hexagons
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Follow me to Infinite Series for 4-Dimensional Bees! https://youtu.be/X8jOxEGVyPo Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ From spirals to spots to fractals, nature is full of interesting patterns. Many of these patterns even resemble geometric shapes. One of the most common? Hexagons. Why do we see this six-sided shape occur so many times in nature? This week we explore why hexagons are so common in the natural world, from honeycomb to bubbles to rocks, and what their mathematics, physics, and biology may have in common. ----------- READ MORE: D’Arcy Wentworth Thompson. (1917) “On Growth and Form” Ball, Philip. (2009). “Shapes: nature's patterns: a tapestry in three parts.” OUP Oxford. Karihaloo, B. L., Zhang, K., & Wang, J. (2013). Honeybee combs: how the circular cells transform into rounded hexagons. Journal of The Royal Society Interface, 10(86), 20130299. Hofmann, Martin, et al. "Why hexagonal basalt columns?." Physical review letters 115.15 (2015): 154301. Aydin, Atilla, and James M. DeGraff. "Evolution of polygonal fracture patterns in lava flows." Science 239.4839 (1988): 471-476. Hayashi, Takashi, and Richard W. Carthew. "Surface mechanics mediate pattern formation in the developing retina." Nature 431.7009 (2004): 647. Kim, Sangwoo, et al. "Hexagonal Patterning of the Insect Compound Eye: Facet Area Variation, Defects, and Disorder." Biophysical journal 111.12 (2016): 2735-2746. ----------- FOLLOW US: Merch: https://store.dftba.com/collections/its-okay-to-be-smart Facebook: http://www.facebook.com/itsokaytobesmart Twitter: @okaytobesmart @DrJoeHanson Tumblr: http://www.itsokaytobesmart.com Instagram: @DrJoeHanson Snapchat: YoDrJoe ----------- It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D. Director: Andrew Matthews Writer: Joe Hanson Producer/editor/animator: Andrew Matthews Producer: Stephanie Noone and Amanda Fox Produced by PBS Digital Studios Music via APM Stock images from Shutterstock http://www.shutterstock.com
Views: 1157082 It's Okay To Be Smart
How Do We Know Plate Tectonics Is Real?
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate But did thee feel the Earth move? ↓ More info and sources below ↓ Why do Africa and South America fit together? Anyone who’s ever looked at a map can see that Earth’s continents are kind of like a jigsaw puzzle. The idea that continents are constantly moving and weren’t always in their current spots is a pretty obvious idea, right? You might be surprised to learn that geologists only accepted that idea recently in the past few decades, and it figuring out how plate tectonics and continental drift work required some pretty strange evidence. ----------- LEARN MORE: Some background on Alfred Wegener: http://www.ucmp.berkeley.edu/geology/techist.html Lystrosaurus (ancient mammal relative): https://en.wikipedia.org/wiki/Lystrosaurus Glossopteris (ancient fern): https://en.wikipedia.org/wiki/Glossopteris The splitting of Africa: http://theconversation.com/splitting-africa-what-happens-when-a-continent-breaks-apart-6248 ----------- FOLLOW US: Merch: https://store.dftba.com/collections/its-okay-to-be-smart Facebook: http://www.facebook.com/itsokaytobesmart Twitter: @okaytobesmart @DrJoeHanson Tumblr: http://www.itsokaytobesmart.com Instagram: @DrJoeHanson Snapchat: YoDrJoe ----------- It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D. Director: Joe Nicolosi Writer: Shaena Montanari Producer/editor/animator: Andrew Orsak Producer: Stephanie Noone and Amanda Fox Produced by PBS Digital Studios Music via APM Stock images from Shutterstock http://www.shutterstock.com
Views: 283465 It's Okay To Be Smart
How Was the Grand Canyon Formed?
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate It's a long story… ↓ More info and sources below ↓ How do you make a Grand Canyon? Thanks to Mike from PBS Idea Channel and Jamin from PBS Game/Show for hanging out at the Grand Canyon with me! https://www.youtube.com/user/pbsideachannel https://www.youtube.com/user/pbsgameshow Special thanks to Raymond Schillinger for great camera work! I was in Arizona recently for Phoenix Comic-Con, and had the amazing pleasure of seeing one of Earth's greatest natural wonders… the Grand Canyon. More than a mile deep, and several miles across, it just defies belief. But I couldn't help but think, the Colorado River down at the bottom isn't that big. How did it cut a canyon so massive? How old is the Grand Canyon? Here's its story http://www.nps.gov/grca/learn/nature/geologicformations.htm Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below! Follow on Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/jtotheizzoe ----------------- It's Okay To Be Smart is written and hosted by Joe Hanson, Ph.DFollow me on Twitter: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart Google+ https://plus.google.com/+itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios Joe Hanson - Creator/Host/Writer… and camera for this one! Joe Nicolosi - Director Amanda Fox - Producer, Spotzen IncKate Eads - Producer Andrew Matthews - Editing/Motion Graphics/Animation Theme music: "Ouroboros" by Kevin MacLeod Other music via APM Stock images from Shutterstock, stock footage from Videoblocks ----------------- Last week's video: Why Are The Bees Dying? https://youtu.be/rKQNx0av7eY?list=PLsmqeqKj7M-pINcPqJd8d1eRKlqm6QVjA More videos: Why Does February Have 28 Days? https://www.youtube.com/watch?v=AgKaHTh-_Gs Why Vaccines Work https://www.youtube.com/watch?v=3aNhzLUL2ys Why Are Some People Left-Handed? https://www.youtube.com/watch?v=NPvMUpcxPSA Where Does the Smell of Rain Come From? https://www.youtube.com/watch?v=lGcE5x8s0B8
Views: 440210 It's Okay To Be Smart
What If There Were No Sharks?
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Follow this link to more shark science videos by your favorite YouTubers!! http://bit.ly/1sugd0z ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Sharks killed per hour infographic: http://bit.ly/1oXYT0Y An estimated 100 million sharks are killed per year: http://bit.ly/1oE7uRS Palau sharks are worth $2 million: http://nyti.ms/1kX4fua Effect of shark overfishing on reefs: http://bit.ly/1opLhwF Overfishing sharks led to scallop fishery collapse: https://www.sciencemag.org/content/315/5820/1846.short?related-urls=yes&legid=sci;315/5820/1846 ----------------- Have an idea for an episode or an amazing science question you want answered? Leave a comment below! Follow me on Twitter: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart Google+ https://plus.google.com/+itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Joe Hanson - Host and writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer Katie Graham - Camera Editing/Motion Graphics - Andrew Matthews Gaffer - John Knudsen Theme music: "Ouroboros" by Kevin MacLeod Stock images via Shutterstock Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios ----------------- Last week's video: The Oldest Living Things in the World https://www.youtube.com/watch?v=9xDwQ7DlVaM More videos: Why Did We Blow on NES Games? https://www.youtube.com/watch?v=4Gf9mtXnJfM The Science of BBQ https://www.youtube.com/watch?v=ccqOVmsybO4 The Science of Game of Thrones - https://www.youtube.com/watch?v=Utu-LpJn3Is The Far Future of the Universe - https://www.youtube.com/watch?v=Jl9DwNOonOA There Was No First Human - https://www.youtube.com/watch?v=xdWLhXi24Mo
Views: 2274449 It's Okay To Be Smart
The Sixth Extinction
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate This time, we're the asteroid Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/DrJoeHanson Follow on Instagram: http://instagram.com/drjoehanson Read "The Sixth Extinction by Elizabeth Kolbert: http://amzn.to/1xGKn0K Rodolfo Dirzo et al. "Defaunation in the Anthropocene" http://bit.ly/1H7JQdw Stuart Pimm et al. "Biodiversity of Species and Their Rates of Extinction" http://bit.ly/1A5UZJM Get to know an endangered species: http://discover.iucnredlist.org/ Half of world's wildlife has died off in past 40 years: http://bit.ly/1BHl8jR Have an idea for an episode or an amazing science question you want answered? Leave a comment below! ----------------- It's Okay To Be Smart is written and hosted by Joe Hanson, Ph.D Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios Joe Hanson - Host/Writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen Inc Kate Eads - Associate Producer Katie Graham - Director of Photography Andrew Matthews - Editing/Motion Graphics Dalton Allen - Post-production intern John Knudsen - Gaffer Theme music: "Ouroboros" by Kevin MacLeod Stock images by Shutterstock
Views: 2743280 It's Okay To Be Smart
Could We Clone Ourselves?
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Just be yourself! Or be your other self. Whichever. Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ Is the science of Orphan Black realistic? Could we clone humans, or engineer them to have customized traits? We take a look at today's genetic engineering technologies to find out if designer babies and human cloning is, or should be, a reality BOOKS! For more on the modern science of cloning and genetic modification, read the book "Frankenstein's Cat" by Emily Anthes: http://amzn.to/1zsVizw Chinese scientists have edited the genome of human embryos (sadly this news came out after we had filmed): http://www.theverge.com/2015/4/23/8477491/human-genome-editing-embryo-china-crispr How CRISPRs work: https://www.youtube.com/watch?v=2pp17E4E-O8 Scientists call for a moratorium on human gene editing: http://www.nytimes.com/2015/03/20/science/biologists-call-for-halt-to-gene-editing-technique-in-humans.html?_r=1 Three-parent babies: http://www.nytimes.com/2014/06/29/magazine/the-brave-new-world-of-three-parent-ivf.html Have an idea for an episode or an amazing science question you want answered? Leave a comment below! Follow on Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/jtotheizzoe ----------------- It's Okay To Be Smart is written and hosted by Joe Hanson, Ph.DFollow me on Twitter: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart Google+ https://plus.google.com/+itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios Joe Hanson - Creator/Host/Writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer Andrew Matthews - Editing/Motion Graphics/Animation Katie Graham - Director of Photography John Knudsen - Gaffer Dalton Allen - Post-Production Intern Theme music: "Ouroboros" by Kevin MacLeod Other music via APM Stock images from Shutterstock, stock footage from Videoblocks ----------------- Last week's video: Is Ultron Inevitable? https://www.youtube.com/watch?v=-Irmtk5QG8s More videos: Why Does February Have 28 Days? https://www.youtube.com/watch?v=AgKaHTh-_Gs Why Vaccines Work https://www.youtube.com/watch?v=3aNhzLUL2ys Why Are Some People Left-Handed? https://www.youtube.com/watch?v=NPvMUpcxPSA Where Does the Smell of Rain Come From? https://www.youtube.com/watch?v=lGcE5x8s0B8
Views: 373438 It's Okay To Be Smart
Why Do We Have To Sleep?
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate …and how did it evolve in the first place? Tweet ⇒ http://bit.ly/OKTBSsleep Share on FB ⇒ http://bit.ly/OKTBSsleepFB ↓ More info and sources below ↓ Why do we sleep? We spend a third of our lives in slumber, but science has yet to determine exactly why we have do it. Here’s a look at how sleep works, why we’re not getting enough sleep, what happens if you DON’T sleep, and an idea about where sleep came from in the first place. Follow me to The Good Stuff’s sleep playlist: https://youtu.be/RHCcM7LyZdc?list=PLsRLUurFnvvUCysDQrFvGL0nxN6Eha93s Also check out BrainCraft: https://youtu.be/yv-XNKK9laE https://youtu.be/ZPpvS9wDOcA For more, read: “Dreamland: Adventures in the Strange Science of Sleep” by David K. Randall http://amzn.to/1MB38dt "The Universal Pastime: Sleep and Rest Explained" by Dr Richard Horner http://amzn.com/B00NT9O60O Cool research on melatonin in sea worm larvae: http://www.nytimes.com/2014/10/02/science/the-evolution-of-sleep-700-million-years-of-melatonin.html Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below! Follow on Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/jtotheizzoe Follow on Snapchat: YoDrJoe ----------------- It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D. Follow me on Twitter: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios Joe Hanson - Creator/Host/Writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen Inc. Kate Eads - Producer Andrew Matthews - Editing/Motion Graphics/Animation Arts & Labor - Motion Graphics Katie Graham - Camera John Knudsen - Gaffer Theme music: “Ouroboros” by Kevin MacLeod Other music via APM Stock images from Shutterstock, stock footage from Videoblocks (unless otherwise noted)
Views: 1531597 It's Okay To Be Smart
Why Are Cicadas So Good At Math?
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Subscribe so you don't miss any cool science ►► http://bit.ly/iotbs_sub Follow me to Gross Science: http://youtu.be/IDBkj3DjNSM ↓ More info and sources below ↓ Do periodical cicadas "know" how to calculate prime numbers? One of the strangest life cycles in all of biology, explained! Special thanks to Samuel Orr (www.motionkicker.com) for the beautiful cicada footage! Learn more about magicicadas at http://www.magicicada.org/ Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below! Follow on Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/jtotheizzoe ----------------- It's Okay To Be Smart is written and hosted by Joe Hanson, Ph.DFollow me on Twitter: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart Google+ https://plus.google.com/+itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios Joe Hanson - Creator/Host/Writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen IncKate Eads - Producer Andrew Matthews - Editing/Motion Graphics/Animation Katie Graham - Camera John Knudsen - Gaffer Theme music: "Ouroboros" by Kevin MacLeod Other music via APM Stock images from Shutterstock, stock footage from Videoblocks ----------------- More videos: Why Does February Have 28 Days? https://www.youtube.com/watch?v=AgKaHTh-_Gs Why Vaccines Work https://www.youtube.com/watch?v=3aNhzLUL2ys Why Are Some People Left-Handed? https://www.youtube.com/watch?v=NPvMUpcxPSA Where Does the Smell of Rain Come From? https://www.youtube.com/watch?v=lGcE5x8s0B8
Views: 942484 It's Okay To Be Smart
The Most Important Moment in the History of Life
 
06:40
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Get your #ididascience shirt here! http://dftba.com/besmart Tweet this ⇒ http://bit.ly/OKTBSpwr Share on FB ⇒ http://bit.ly/OKTBSpwrFB ↓ More info and sources below ↓ If you want to read more (MUCH more) about this, check out “The Vital Question” by Nick Lane: http://amzn.to/1SntUdG And I really enjoyed this recent episode of Radiolab about this same story: http://www.radiolab.org/story/cellmates/ ---- Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below! Like us on Facebook: http://www.facebook.com/itsokaytobesmart Follow on Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/jtotheizzoe Follow on Snapchat: YoDrJoe ----------------- It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D. Follow me on Twitter: @jtotheizzoe Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios Music via APM Stock images from SciencePhoto http://www.sciencephoto.com/ and Shutterstock http://www.shutterstock.com Stock footage from Videoblocks (unless otherwise noted) http://www.videoblocks.com
Views: 617635 It's Okay To Be Smart
The Impossible Hugeness of Deep Time
 
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You can learn more at https://curiositystream.com/smart SUBSCRIBE so you don’t miss a video! ►► http://bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ Humans have a hard time with really big numbers, especially when it comes to DEEP TIME. The history of the Earth took a lot longer than you think, trust me. But I’m here to help you put it in perspective. With some string. REFERENCES: http://bit.ly/DeepTimeRefs ----------- FOLLOW US: Twitter: @DrJoeHanson @okaytobesmart Instagram: @DrJoeHanson https://www.itsokaytobesmart.com/ Merch: https://store.dftba.com/collections/its-okay-to-be-smart Facebook: http://www.facebook.com/itsokaytobesmart BOOKS WE’VE FEATURED: http://smart-books.tumblr.com/ ----------- It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D. Director: Joe Nicolosi Researcher: Sarah Jenevein Creative Director: David Schulte Editors/animators: Derek Borsheim Producers: Stephanie Noone and Amanda Fox Produced by PBS Digital Studios Music via APM Stock images from Shutterstock http://www.shutterstock.com
Views: 733614 It's Okay To Be Smart
Why Does Hair Grow The Way It Does?
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Try CuriosityStream today: http://curiositystream.com/smart Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓↓↓More info and sources below ↓↓↓ Check out more of my friend Kyle’s sweet hair on his channel “Because Science”: https://www.youtube.com/playlist?list=PLl4T6p7km9dZSdTfPxucpwZY7Try86hFW All mammals have hair at some point in their lives, but none of them wear it quite like humans. Why does our hair grow where it does, and not grow where it doesn’t? How does our hair get its color? And why does it go gray and often fall out when we get older and go bald? Learn all about the science of human hair in this week’s video! ----------- REFERENCES: Harding RM, Healy E, Ray AJ, et al. Evidence for Variable Selective Pressures at MC1R. American Journal of Human Genetics. 2000;66(4):1351-1361. Randall, Valerie Anne. "Androgens and hair growth." Dermatologic therapy 21.5 (2008): 314-328. Yablon, J. "What is the latest theory of why humans lost their body hair?." SCIENTIFIC AMERICAN 297.3 (2007): 124-124. APA ----------- FOLLOW US: Merch: https://store.dftba.com/collections/its-okay-to-be-smart Facebook: http://www.facebook.com/itsokaytobesmart Twitter: @okaytobesmart @DrJoeHanson Tumblr: http://www.itsokaytobesmart.com Instagram: @DrJoeHanson Snapchat: YoDrJoe ----------- It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D. Director: Joe Nicolosi Writer: Sarah Keartes Producer/editor/animator: Andrew Matthews Producer: Stephanie Noone and Amanda Fox Produced by PBS Digital Studios Music via APM Stock images from Shutterstock http://www.shutterstock.com
Views: 571232 It's Okay To Be Smart
How Some Animals Engineered Air Conditioning
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Thanks to the non-profit edX.org for sponsoring this video. Go to http://bit.ly/edXSmart to learn more from some of the top universities in the world. ↓↓↓More info and sources below ↓↓↓ Here’s a cool idea: SUBSCRIBE! ►► http://bit.ly/iotbs_sub Are humans nature’s greatest architects? When we look elsewhere in nature, we find some pretty amazing animal architects. Species like ants, termites, prairie dogs, birds, and more have engineered some incredible structures. This week we look at how a few of these species have mastered physics to install air conditioning in their homes! Special thanks to Dianna Cowern AKA Physics Girl for helping us get the physics right in this video! https://www.youtube.com/user/physicswoman ----------- REFERENCES: Gould, James L., and Carol Grant Gould. Animal architects: building and the evolution of intelligence. Basic Books (AZ), 2007. Hansell, M. (2007). Built by animals: the natural history of animal architecture. OUP Oxford. Cosarinsky, M. I., & Roces, F. (2012). The construction of turrets for nest ventilation in the grass-cutting ant Atta vollenweideri: import and assembly of building materials. Journal of Insect Behavior, 25(3), 222-241. Kleineidam, C., Ernst, R., & Roces, F. (2001). Wind-induced ventilation of the giant nests of the leaf-cutting ant Atta vollenweideri. Naturwissenschaften, 88(7), 301-305. King, H., Ocko, S., & Mahadevan, L. (2015). Termite mounds harness diurnal temperature oscillations for ventilation. Proceedings of the National Academy of Sciences, 112(37), 11589-11593. Vogel, S., Ellington, C. P., & Kilgore, D. L. (1973). Wind-induced ventilation of the burrow of the prairie-dog, Cynomys ludovicianus. Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology, 85(1), 1-14. Bahadori, M. M. (1978). Passive cooling systems in Iranian architecture. Sci. Am.;(United States), 238(2). ----------- FOLLOW US: Merch: https://store.dftba.com/collections/its-okay-to-be-smart Facebook: http://www.facebook.com/itsokaytobesmart Twitter: @okaytobesmart @DrJoeHanson Tumblr: http://www.itsokaytobesmart.com Instagram: @DrJoeHanson Snapchat: YoDrJoe ----------- It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D. Director: Joe Nicolosi Writer: Joe Hanson Producer/editor/animator: Andrew Matthews Producer: Stephanie Noone and Amanda Fox Produced by PBS Digital Studios Music via APM Stock images from Shutterstock http://www.shutterstock.com
Views: 602045 It's Okay To Be Smart
How I Used Physics to Get Crushed by the Atmosphere
 
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Try Audible for 30 days visit https://www.audible.com/ok or text ok to 500 500! SUBSCRIBE so you don’t miss a video! ►► http://bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ Air. I bet you never even notice that it’s there. Yet you are swimming in an ocean of it every day. If there’s a literal ton of air pressing down on you all the time, so why don’t we feel it? We look back at the history of physics to learn how we figured out air pressure, why vacuums don’t suck, and how people like Galileo, Torricelli, and Otto von Guericke changed science forever with a few simple experiments. #AirPressure #Physics #Atmosphere DISCLAIMER: Do not perform the trash bag experiment without adult supervision. Always have a helper nearby so you don’t get trapped in the bag. And never ever put your head inside a trash bag, ever. Here’s how to try it yourself: https://exploratorium.edu/snacks/feeling-pressured ----------- REFERENCES: Walker, Gabrielle. An Ocean of Air: Why the Wind Blows and Other Mysteries of the Atmosphere. Houghton Mifflin Harcourt, 2008. ----------- FOLLOW US for more curiosity: Twitter http://www.twitter.com/DrJoeHanson http://www.twitter.com/okaytobesmart Instagram http://www.instagram.com/DrJoeHanson http://www.instagram.com/okaytobesmart Merch https://store.dftba.com/collections/its-okay-to-be-smart Facebook http://www.facebook.com/itsokaytobesmart Books from our episodes: http://smart-books.tumblr.com/
Views: 202710 It's Okay To Be Smart
Do Other Animals Mourn Their Dead? (ft. BrainCraft and Gross Science!)
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate This episode is brought to you by Dropbox https://www.dropbox.com/ Follow me to Gross Science: https://youtu.be/kRUt9pqMCSg and BrainCraft: https://youtu.be/Joalg73L_gw ↓ More info and sources below ↓ Tweet ⇒ http://bit.ly/OKTBSmourn Share on FB ⇒ http://bit.ly/OKTBSmournFB We’ve got t-shirts! Get yours here: http://store.dftba.com/collections/its-okay-to-be-smart BOOK RECOMMENDATION: Barbara J. King "How Animals Grieve" http://amzn.to/1MD7Jz5 References: Barbara J. King “When Animals Mourn” Scientific American http://www.nature.com/scientificamerican/journal/v309/n1/full/scientificamerican0713-62.html Jason G. Goldman “Death Rituals In The Animal Kingdom” http://www.bbc.com/future/story/20120919-respect-the-dead Iain Douglas Hamilton “Behavioural reactions of elephants towards a dying and deceased matriarch” Applied Animal Behavior Science http://www.appliedanimalbehaviour.com/article/S0168-1591(06)00101-8/abstract Chimpanzees mourning dead infants: http://www.mpg.de/1071360/mourning_chimpanzee http://www.cell.com/current-biology/abstract/S0960-9822%2810%2900218-6 (video: https://www.youtube.com/watch?v=nM9GLhuPDXA) Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below! Follow on Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/jtotheizzoe Follow on Snapchat: YoDrJoe ----------------- It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D. Follow me on Twitter: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios Joe Hanson - Creator/Host/Writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen Inc. Kate Eads - Producer Andrew Matthews - Editing/Motion Graphics/Animation Katie Graham - Camera John Knudsen - Gaffer Theme music: “Ouroboros” by Kevin MacLeod Other music via APM Stock images from Shutterstock, stock footage from Videoblocks (unless otherwise noted)
Views: 255913 It's Okay To Be Smart
The Essentials of Energy
 
05:22
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Check out our whole series on ENERGY! http://bit.ly/1BnH5zu Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ The world of energy is a confusing place. What's better, nuclear or solar? What's the difference between fluorescent bulbs and LEDs? What's the difference between energy and power? And what the heck is a kilowatt-hour?! In this video, we give you a tour of the essential principles behind the energy machine that puts fuel in our tanks and brings electricity to our homes. To be a good energy citizen, you need to speak the language LEARN MORE: Special thanks to Sheril Kirshenbaum and the Webber Energy Group at the University of Texas at Austin for their help with this series. http://www.webberenergygroup.com/ Check out their awesome online course "Energy 101" to learn about energy and energy policy from A to Z! http://www.energy101.com/ And to find out what people think about energy, check out the UT Energy Poll: http://www.utenergypoll.com/ Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below! Follow on Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/jtotheizzoe ----------------- It's Okay To Be Smart is written and hosted by Joe Hanson, Ph.DFollow me on Twitter: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart Google+ https://plus.google.com/+itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios Joe Hanson - Creator/Host/Writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer Andrew Matthews - Editing/Motion Graphics/Animation Katie Graham - Director of Photography John Knudsen - Gaffer Theme music: "Ouroboros" by Kevin MacLeod Other music via APM Stock images from Shutterstock, stock footage from Videoblocks ----------------- Last week's video: Does the Moon Orbit the Earth? https://www.youtube.com/watch?v=3cJ3AemeUFM More videos: Why Does February Have 28 Days? https://www.youtube.com/watch?v=AgKaHTh-_Gs Why Vaccines Work https://www.youtube.com/watch?v=3aNhzLUL2ys Why Are Some People Left-Handed? https://www.youtube.com/watch?v=NPvMUpcxPSA Where Does the Smell of Rain Come From? https://www.youtube.com/watch?v=lGcE5x8s0B8
Views: 256256 It's Okay To Be Smart
Does The Moon Really Orbit The Earth?
 
03:25
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate What holds the moon up? Moonbeams! Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓ More info and sources below ↓ According to Newton's law of gravitation, the sun should "pull" way harder on the moon than the Earth does. So does the moon actually orbit the Earth? Why? Special thanks to Ariel for submitting this awesome question to our Facebook page! Hill Spheres and lunar orbit: http://blogs.discovermagazine.com/badastronomy/2008/09/29/the-moon-that-went-up-a-hill-but-came-down-a-planet/#.VULLHq1Viko True shape of moon's orbit: http://www.math.nus.edu.sg/aslaksen/teaching/convex.html Newton's law of gravitation vs. Hill Sphere: https://van.physics.illinois.edu/qa/listing.php?id=18501 http://en.wikipedia.org/wiki/Hill_sphere Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below! Follow on Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/jtotheizzoe ----------------- It's Okay To Be Smart is written and hosted by Joe Hanson, Ph.DFollow me on Twitter: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart Google+ https://plus.google.com/+itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios Joe Hanson - Creator/Host/Writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer Stephen Bohls - Editing/Motion Graphics/Animation Katie Graham - Director of Photography John Knudsen - Gaffer Theme music: "Ouroboros" by Kevin MacLeod Other music via APM Stock images from Shutterstock, stock footage from Videoblocks French subtitles by Alessandro Dal Cero ----------------- Last week's video: What's The Loudest Possible Sound? https://www.youtube.com/watch?v=wi_aawsChqA More videos: Why Does February Have 28 Days? https://www.youtube.com/watch?v=AgKaHTh-_Gs Why Vaccines Work https://www.youtube.com/watch?v=3aNhzLUL2ys Why Are Some People Left-Handed? https://www.youtube.com/watch?v=NPvMUpcxPSA Where Does the Smell of Rain Come From? https://www.youtube.com/watch?v=lGcE5x8s0B8
Views: 651228 It's Okay To Be Smart
Ghosts of Evolution
 
04:54
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate What does a ginkgo tree have in common with a dinosaur? SUBSCRIBE, it's FREE! http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Every fall, in cities like New York, the smell of vomit fills the crisp air. The culprit? The pungent seeds of the ginkgo biloba tree. So why would a tree evolve such a disgusting and revolting way to disperse its genes and make baby trees? Why not be more like the delicious apple? Join me for an evolutionary ghost story. We'll find out why the ginkgo is so weird, visit with some prehistoric beasts, and learn how an avocado is a bit like a dodo bird Check out "Ghosts of Evolution" by Connie Barlow: http://amzn.to/1iLBpsb Why the avocado should have gone the way of the dodo: http://blogs.smithsonianmag.com/food/2013/10/why-the-avocado-should-have-gone-the-way-of-the-dodo/ More about evolutionary anachronisms: http://sydkab.wordpress.com/tag/evolutionary-anachronism/ The ginkgo is Earth's oldest tree: http://e360.yale.edu/feature/peter_crane_history_of_ginkgo_earths_oldest_tree/2646/ Janzen and Martin's 1982 paper "Neotropical Anachronisms: The Fruits the Gomphotheres Ate": http://bit.ly/1aO0qiY ----------------- Have an idea for an episode or an amazing science question you want answered? Leave a comment below! Tweet at me: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Joe Hanson - Host and writer Joe Nicolosi - Director Amanda Fox - Producer Katie Graham - Director of Photography Andrew Matthews - Editor and Motion Graphics Kate Eads - Production Manager Filmed at Onion Creek Productions in Austin, TX Thanks to Dan Silver for the footage of ginkgo trees in NYC Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios ----------- More videos: Remembering Carl Sagan https://www.youtube.com/watch?v=hJ-WkDvC8EM Why Do Things Sound Scary? http://www.youtube.com/watch?v=1JAym6-h4RE Want even MORE? Monuments http://youtu.be/07K0vo-d1HA Animal Superpowers http://www.youtube.com/watch?v=e69yaWDkVGs
Views: 660338 It's Okay To Be Smart
The Physics of Space Battles
 
06:03
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate How scientifically accurate is your favorite sci-fi space battle? Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Joseph Shoer has several extensive, in-depth articles on the physics of space warfare: http://josephshoer.com/blog/2009/12/thoughts-on-space-battles/ http://josephshoer.com/blog/2010/07/projecting-space-battle-physics/ Space warfare: Almost everything you know is probably wrong http://www.escapistmagazine.com/forums/read/18.100198-Space-Warfare-Almost-Everything-You-Know-Is-Probably-Wrong Is space warfare really practical? http://www.escapistmagazine.com/forums/read/18.846407-Is-space-warfare-really-practical-except-lasers Zero-g dogfighting for dummies: http://www.citizenstarnews.com/news/zero-g-dogfighting-dummies Projectile weapons vs. directed energy weapons: http://forum.gateworld.net/threads/17263-Projectile-Weapons-vs-Directed-Energy-Weapons Nukes in space: http://www.projectrho.com/public_html/rocket/spacegunconvent.php Effects of radiation weapons in space: http://www.projectrho.com/public_html/rocket/radiation.php#effects Could the Death Star really destroy a planet? http://www.universetoday.com/92746/could-a-death-star-really-destroy-a-planet/ "Sir Isaac Newton is the deadliest son of a b***h in space" https://www.youtube.com/watch?v=hLpgxry542M ----------------- Have an idea for an episode or an amazing science question you want answered? Leave a comment below! Follow me on Twitter: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart Google+ https://plus.google.com/+itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios Joe Hanson - Host and writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer Katie Graham - Director of Photography Editing/Motion Graphics - Andrew Matthews/Kirby Conn Gaffers - John Knudsen/Philip Sheldon Post-production intern - Dalton Allen Theme music: "Ouroboros" by Kevin MacLeod Stock images via Shutterstock ----------------- Last week's video: The science of BEER! https://www.youtube.com/watch?v=Y1oaFtpGKuM More videos: Why Did We Blow on NES Games? https://www.youtube.com/watch?v=4Gf9mtXnJfM The Science of Game of Thrones - https://www.youtube.com/watch?v=Utu-LpJn3Is The Far Future of the Universe - https://www.youtube.com/watch?v=Jl9DwNOonOA There Was No First Human - https://www.youtube.com/watch?v=xdWLhXi24Mo How The Elements Got Their Names - https://www.youtube.com/watch?v=mtg9p6A6xnY
Views: 1041871 It's Okay To Be Smart
Is Space a Thing?
 
08:50
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Try 23andMe: http://www.23andme.com/okay Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ Since the days of Ancient Greece, philosophers and scientists have been wondering: What is space? Is the absence of things… a thing? These questions continued to fascinate physicists in the modern era, leading Isaac Newton, Ernst Mach, and Albert Einstein to wonder about the true nature of the fabric of the cosmos. The search for an answer led them to some of the greatest theories in physics. This week, we ask if space and time are really real, and how they come together to make “spacetime”! ----------- READ MORE: “The Fabric of the Cosmos” by Brian Greene http://amzn.to/2tF9fZO (Public library: http://www.worldcat.org/oclc/681349969) ----------- FOLLOW US: Merch: https://store.dftba.com/collections/its-okay-to-be-smart Facebook: http://www.facebook.com/itsokaytobesmart Twitter: @okaytobesmart @DrJoeHanson Tumblr: http://www.itsokaytobesmart.com Instagram: @DrJoeHanson Snapchat: YoDrJoe ----------- It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D. Director: Andrew Matthews Writer: Andrew Matthews Producer/editor/animator: Andrew Matthews Producer: Stephanie Noone and Amanda Fox Produced by PBS Digital Studios Music via APM Stock images from Shutterstock http://www.shutterstock.com
Views: 882617 It's Okay To Be Smart
Why I'm Scared of Spiders
 
03:32
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate The science of… OH GOD IS THAT A SPIDER?! Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/jtotheizzoe I'm scared of spiders. I'm not afraid to admit it. I love them in a scientific sense, or from a "let me look at you from way over here" sense, but that's as close as I get Here's a look at the science of why some of us are afraid of spiders, snakes, roaches, and other creepy crawlies. Did I evolve to be this way, or did I learn to be afraid of them? It seems to be an open question… How dangerous ARE spiders? http://burkemuseum.blogspot.com/2010/09/q-how-dangerous-are-spiders-to-humans.html#.VECZZNR4pj5 Humans may have evolved to pick out spiders and snakes from environment: http://www.apa.org/news/press/releases/2001/09/snakes.aspx The overlapping worlds of fear conditioning from innate fear: http://instruct.uwo.ca/psychology/371g/Ohman2001.pdf Doctor Who study suggests that spider fear may not be innate: http://www.wired.com/2014/01/doctor-who-and-spider-phobia/ Most common phobias: http://psychology.about.com/od/phobias/p/commonphobias.htm Adults and kids pick out creepy animals quicker than non-creepy animals: http://www.livescience.com/2348-fear-snakes.html Children report spiders as a top fear: http://www.sciencedirect.com/science/article/pii/S0005796797000508 List of clips featured in this episode: http://bit.ly/1xFhdO9 ----------------- Have an idea for an episode or an amazing science question you want answered? Leave a comment below! Follow me on Twitter: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart Google+ https://plus.google.com/+itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios Joe Hanson - Host and writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer Katie Graham - Director of Photography Stephen Bohls - Editing/Motion Graphics John Knudsen - Gaffer Theme music: "Ouroboros" by Kevin MacLeod Thumbnail photo: specnaz/Shutterstock Stock images via Shutterstock Music: "Two Boys and a Girl" - Podington Bear ----------------- Last week's video: Ebola - The Full Story https://www.youtube.com/watch?v=B44JfptNuG0 More videos: Why Did We Blow on NES Games? https://www.youtube.com/watch?v=4Gf9mtXnJfM The Science of Game of Thrones - https://www.youtube.com/watch?v=Utu-LpJn3Is The Far Future of the Universe - https://www.youtube.com/watch?v=Jl9DwNOonOA There Was No First Human - https://www.youtube.com/watch?v=xdWLhXi24Mo How The Elements Got Their Names - https://www.youtube.com/watch?v=mtg9p6A6xnY
Views: 837546 It's Okay To Be Smart
Why Seasons Make No Sense
 
03:29
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Your winter isn't everyone's winter Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Sources: Trenberth, Kevin E. "What are the seasons?." Bulletin of the American Meteorological Society 64.11 (1983): 1276-1282. http://climate.envsci.rutgers.edu/climdyn2014/TrenberthSeasons.pdf http://nautil.us/blog/dont-believe-the-hype-winter-does-not-begin-tonight Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below! Follow on Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/jtotheizzoe Follow on Snapchat: YoDrJoe ----------------- It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D. Follow me on Twitter: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios Music via APM Stock images from Shutterstock, stock footage from Videoblocks (unless otherwise noted)
Views: 1272597 It's Okay To Be Smart
Could Bigfoot REALLY Exist?
 
07:31
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate This episode brought to you by Squarespace: http://squarespace.com/itsokaytobesmart PBS Idea Channel goes to Area 51: https://youtu.be/WCFJh0fdlD8 ↓ More info and sources below ↓ **Check out these books: “The Demon Haunted World - Science as a Candle in the Dark” by Carl Sagan http://amzn.to/1Pbyt4S “Abominable Science” by Daniel Loxton and Donald Prothero http://amzn.to/1Pby5TU **References/More Reading: Crazy About Cryptids! A case study for teachers: http://sciencecases.lib.buffalo.edu/cs/collection/detail.asp?case_id=779&id=779 “Bigfoot” hair DNA test: http://rspb.royalsocietypublishing.org/content/281/1789/20140161?ijkey=af9db7f3524656adecda465cc0cbdfae34da7d15&keytype2=tf_ipsecsha (see also http://rspb.royalsocietypublishing.org/content/281/1789/20140843) Predicting the ecological niche of Sasquatch: http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2699.2009.02152.x/full Why we can’t rule out Bigfoot: http://nautil.us/issue/16/nothingness/why-we-cant-rule-out-bigfoot Some fun reading about Medieval monsters: http://www.bl.uk/the-middle-ages/articles/medieval-monsters-from-the-mystical-to-the-demonic# Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below! Follow on Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/jtotheizzoe Follow on Snapchat: YoDrJoe ----------------- It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D. Follow me on Twitter: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios Joe Hanson - Creator/Host/Writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen Inc. Andrew Matthews - Editing/Motion Graphics/Animation Katie Graham - Camera John Knudsen - Gaffer Theme music: “Ouroboros” by Kevin MacLeod Other music via APM Stock images from Shutterstock, stock footage from Videoblocks (unless otherwise noted)
Views: 526931 It's Okay To Be Smart
Engines of Destruction: The Science of Hurricanes!
 
06:35
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate The physics of the perfect storm… Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Get yourself an awesome IOTBS shirt! http://dftba.com/besmart Learn more/references: “Divine Wind: The History and Science of Hurricanes” by Kerry Emanuel http://amzn.to/2aUY7P7 Japan’s “kamikaze” winds may have been real: http://news.nationalgeographic.com/news/2014/11/141104-kamikaze-kublai-khan-winds-typhoon-japan-invasion/ “El huracán, su mitología y sus símbolos” Fernando Ortiz http://www.worldcat.org/oclc/60338937 “Sea of Storms: A History of Hurricanes in the Greater Caribbean from Columbus to Katrina” Stuart B. Schwartz http://press.princeton.edu/titles/10324.html Emanuel, Kerry. "Tropical cyclones." Annual Review of Earth and Planetary Sciences 31.1 (2003): 75. Knutson, Thomas R., et al. "Tropical cyclones and climate change." Nature Geoscience 3.3 (2010): 157-163. “Hurricane Force” Roger Smith 2006 Phys. World 19 (6) 32 Could we nuke a hurricane? http://www.aoml.noaa.gov/hrd/tcfaq/C5c.html ---------------- It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D. Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below! Facebook: http://www.facebook.com/itsokaytobesmart Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Tumblr: http://www.itsokaytobesmart.com Instagram: http://instagram.com/jtotheizzoe Snapchat: YoDrJoe Produced by PBS Digital Studios Music via APM Stock images from SciencePhoto http://www.sciencephoto.com/ and Shutterstock http://www.shutterstock.com
Views: 279191 It's Okay To Be Smart
%$?# Allergies!
 
05:05
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate It's the season for sneezin'! Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ Springtime means the arrival of green grass, bright flowers, and buzzing bees. But for many of us, it's also about sneezing, watery red eyes, and a runny nose, thanks to allergies. In this week's video, you'll learn why we get allergies, how our immune system turns against us to attack pollen and pets, and why allergies seem to be on the rise in developed nations. Hygiene hypothesis: http://en.wikipedia.org/wiki/Hygiene_hypothesis Spread of allergies in developed nations: http://www.nature.com/nature/journal/v479/n7374_supp/full/479S2a.html TGF-beta and allergies: http://bit.ly/1HXjm05 Microbiome and allergies: http://www.bbc.com/news/health-28934415 Gut microbes and peanut allergy in mice: http://news.sciencemag.org/biology/2014/08/gut-microbe-stops-food-allergies Have an idea for an episode or an amazing science question you want answered? Leave a comment below! Follow on Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/jtotheizzoe ----------------- It's Okay To Be Smart is written and hosted by Joe Hanson, Ph.DFollow me on Twitter: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart Google+ https://plus.google.com/+itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios Joe Hanson - Creator/Host/Writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer Andrew Matthews - Editing/Motion Graphics/Animation Katie Graham - Director of Photography John Knudsen - Gaffer Dalton Allen - Post-Production Intern Theme music: "Ouroboros" by Kevin MacLeod Other music via APM Stock images from Shutterstock, stock footage from Videoblocks ----------------- Last week's video: How Many Stars Are There? https://www.youtube.com/watch?v=vh8-ZUIX_1o More videos: Why Does February Have 28 Days? https://www.youtube.com/watch?v=AgKaHTh-_Gs Why Vaccines Work https://www.youtube.com/watch?v=3aNhzLUL2ys Why Are Some People Left-Handed? https://www.youtube.com/watch?v=NPvMUpcxPSA Where Does the Smell of Rain Come From? https://www.youtube.com/watch?v=lGcE5x8s0B8
Views: 511169 It's Okay To Be Smart
Einstein Is (Almost) Always Right: Gravitational Waves Edition
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Try Squarespace: http://squarespace.com/itsokaytobesmart Tweet this ⇒ http://bit.ly/OKTBSgr Share on FB ⇒ http://bit.ly/OKTBSgrFB ↓ More info and sources below ↓ Check out this PBS Space Time playlist all about general and special relativity: https://www.youtube.com/playlist?list=PLsPUh22kYmNAmjsHke4pd8S9z6m_hVRur Physics Girl explains gravitational waves: https://www.youtube.com/watch?v=HrduBZ319XI LIGO’s gravitational waves converted into sound (from the end of video): https://www.youtube.com/watch?v=TWqhUANNFXw Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below! Follow on Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/jtotheizzoe Follow on Snapchat: YoDrJoe ----------------- It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D. Follow me on Twitter: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigita... Music via APM Stock images from Shutterstock, stock footage from Videoblocks (unless otherwise noted)
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