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Be Smart.

Joe Hanson

We give you deep answers to simple questions about science and the rest of the universe. And also dad jokes. Be Smart is hosted by Joe Hanson, PhD. He's a molecular biologist and an award-winning science communicator and journalist

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  • August 26 · 9 min

    Einstein Is (Basically) Always Right: Gravitational Waves Edition

    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)​ Learn more about your ad choices. Visit megaphone.fm/adchoices

  • August 26 · 9 min

    How The Placebo Effect Influences Your Brain

    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/ Tweet ⇒ http://bit.ly/OKTBSplacebos Share on FB ⇒ http://bit.ly/OKTBSplaceboFB ↓ More info and sources below ↓ How does the placebo effect work? Here's how your brain tricks itself when it comes to medicine Follow me to Reactions to learn what is (and isn’t) in those vitamin supplements: https://youtu.be/9gQoG0AT3kY We’ve got t-shirts! Get yours here: http://store.dftba.com/collections/its-okay-to-be-smart References: Niemi, M. B. (2009). Placebo Effect: A Cure in the Mind: Scientific American.Placebo Effect: A Cure in the Mind: Scientific American. Price, D. D., Finniss, D. G., & Benedetti, F. (2008). A comprehensive review of the placebo effect: recent advances and current thought. Annu. Rev. Psychol.,59, 565-590. Finniss, D. G., Kaptchuk, T. J., Miller, F., & Benedetti, F. (2010). Biological, clinical, and ethical advances of placebo effects. The Lancet, 375(9715), 686-695. Marchant, J. (2015). Strong placebo response thwarts painkiller trials. Nature News http://www.nature.com/news/strong-placebo-response-thwarts-painkiller-trials-1.18511 Dr. Ben Goldacre's book "Bad Science" http://amzn.to/1TZ5WUE Harold Pashler "Encyclopedia of the Mind" http://amzn.to/1HT7RJ4 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)​ Learn more about your ad choices. Visit megaphone.fm/adchoices

  • August 26 · 20 min

    How Scorpions Became Earth's Toughest Survivors

    We’re on PATREON! Join the community: https://www.patreon.com/itsokaytobesmart ↓↓↓ More info and sources below ↓↓↓ Scorpions have been terrorizing other creatures on Earth for hundreds of millions of years. They’ve evolved a perfect cocktail of venom that can mess up both predators and prey. But they are also an evolutionary marvel that could show us the way to some powerful new life-saving medicines. Filmed at the California Academy of Sciences @calacademy https://www.calacademy.org/ SUBSCRIBE so you don’t miss a video! ►► http://bit.ly/iotbs_sub ----------- Be Smart is made possible by these Brain Trust Patrons and others: Holly, Brett, and Ashe Bullion Jaap Westera Millennial Glacier Mark Littlehale Mehdi Damou Barbora Bei Burt Humburg dani bowman David Johnston Salih Arslan Baerbel Winkler Robert Young Eric Meer Dustin Karen Haskell Join us on Patreon! https://patreon.com/itsokaytobesmart Twitter http://www.twitter.com/DrJoeHanson http://www.twitter.com/okaytobesmart Instagram http://www.instagram.com/DrJoeHanson http://www.instagram.com/okaytobesmart​ Learn more about your ad choices. Visit megaphone.fm/adchoices

  • August 26 · 5 min

    What's The Loudest Sound That Could Exist?

    Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate It's definitely higher than "11" Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ What is the loudest possible sound? What about the quietest thing we can hear? And what do decibels measure, anyway? In this video you'll learn what makes sound The loudest sound on Earth (the we know of anyway), great story by Aatish Bhatia: http://nautil.us/blog/the-sound-so-loud-that-it-circled-the-earth-four-times Video of the Papua New Guinea volcano eruption from YouTuber bacobjee: https://www.youtube.com/watch?v=BUREX8aFbMs Calculation of the shock wave from teleportation: http://www.quora.com/Teleportation/If-you-were-to-disappear-suddenly-how-loud-would-be-the-noise-of-the-air-filling-up-the-vacuum-youve-left The sometimes-painful effects of different sound pressure levels: http://www.makeitlouder.com/Decibel%20Level%20Chart.txt How loud are rocket launches? http://testtube.com/dnews/how-loud-are-space-shuttle-launches/ NASA's sound suppression water system: https://www.youtube.com/watch?v=9LehY5avJUM Can a sound be loud enough to kill you? http://www.straightdope.com/columns/read/2298/can-a-noise-be-loud-enough-to-kill-you ----------------- It's Okay To Be Smart is written and hosted by Joe Hanson, Ph.D Follow me on Twitter/Instagram: @DrJoeHanson @okaytobesmart 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 IncKate Eads - Associate Producer Jen Piper/Arts+Labor - 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​ Learn more about your ad choices. Visit megaphone.fm/adchoices

  • August 26 · 5 min

    This Is Not the Rainbow

    Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Check out Squarespace: http://squarespace.com/itsokaytobesmart Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓ More info and sources below ↓ The ABSOLUTE best place to learn more about atmospheric optics: http://www.atoptics.co.uk/ Excellent resource on ice crystal physics: http://www.snowcrystals.com/ Video showing “5 suns” over Cambodia: https://www.youtube.com/watch?v=ejM6MJVVSFI (actually two sun dogs, a parhelic circle, and two 120˚ parhelions!) The coolest sky picture I’ve ever seen: https://www.facebook.com/NWSAmarillo/photos/a.376992752312629.94660.208741279137778/940978792580686/?type=3&theater 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! ----------------- It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D. Follow me on Instagram: @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 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 Music via APM Stock images from Shutterstock, stock footage from Videoblocks (unless otherwise noted) Thumbnail image by Фтещт Нфтлщмнш CC BY-SA 4.0 Learn more about your ad choices. Visit megaphone.fm/adchoices

  • August 26 · 6 min

    Why Your Brain Calls Your Head Home

    Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Check out BrainCraft: http://youtu.be/aucscX191vQ Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Part 1 of 3 in my series about why our bodies are shaped the way they are. Stay tuned for part 2 and 3 later this week! Make sure you head over BrainCraft and check out the rest of our collaboration! More info: Still of that crazy face comes from FKA twigs' "Water Me": http://youtu.be/kFtMl-uipA8 Evolution of the nervous system: http://en.wikipedia.org/wiki/Evolution_of_nervous_systems Step by step along the evolutionary tree: http://tolweb.org/Bilateria/2459 http://en.wikipedia.org/wiki/Bilateria http://en.wikipedia.org/wiki/Deuterostome http://en.wikipedia.org/wiki/Protostome http://en.wikipedia.org/wiki/Urochordata http://en.wikipedia.org/wiki/Chordate http://en.wikipedia.org/wiki/Cephalochordata http://en.wikipedia.org/wiki/Craniate http://en.wikipedia.org/wiki/Gnathostomata Evolutionary timeline of vertebrates: http://www.utexas.edu/news/2008/03/03/tree/ How old are Hox genes: http://www.nature.com/nrg/journal/v8/n5/full/nrg2114.html Hox genes in development: The Hox Code http://www.nature.com/scitable/topicpage/hox-genes-in-development-the-hox-code-41402 Joe Hanson - Host and writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer Katie Graham - Director of Photography Motion Graphics and Editing - Arts+Labor Stephanie Noone - Producer, Arts+Labor John Knudsen - Gaffer Music: "Ouroboros" by Kevin MacLeod Stock images via Shutterstock Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios ----------- Join us on Patreon! https://patreon.com/itsokaytobesmart 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 https://www.facebook.com/itsokaytobesmartpbs/​ Learn more about your ad choices. Visit megaphone.fm/adchoices

  • August 26 · 11 min

    Why Are We The Only Humans Surviving?

    Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Try 23andMe at: http://www.23andme.com/okay Part 2 of our special series on Human Ancestry. Watch it all: http://bit.ly/OKTBSHuman ↓↓↓More info and sources below ↓↓↓ In part 2 of our special series on human ancestry, we ask why we are the only surviving branch on the human evolutionary tree. Just 50,000-100,000 years ago, Earth was home to three or four separate human species, including our most famous cousins: the Neanderthals. New research has shown that Neanderthals were not the brutish, unintelligent cavemen that cartoons make them out to be. They were creative, smart, social, and perhaps even had complex language. So why did they go extinct as soon as Homo sapiens moved into their territory? Does any trace of them live on today? Why don’t we have Neanderthal neighbors? ----------- REFERENCES: Papagianni, Dimitra, and Michael A. Morse. The Neanderthals Rediscovered: How Modern Science Is Rewriting Their Story. Thames & Hudson, 2015. http://amzn.to/2oov6GG (Library: http://www.worldcat.org/oclc/923279213) 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) Walter, Chip. “Last ape standing: the seven-million-year story of how and why we survived.” Bloomsbury Publishing USA, 2013. http://amzn.to/2pP2liy (Library: http://www.worldcat.org/oclc/872121723) ----------- 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 Learn more about your ad choices. Visit megaphone.fm/adchoices

  • August 26 · 21 min

    Why NASA Rammed an Asteroid

    ↓↓↓ More info and sources below ↓↓↓ Where did life come from? It’s one of the biggest questions humans have ever asked — and the answer might be locked in ancient space rocks that were around before life began. To find out, NASA pulled off one of its most ambitious missions ever, landing on an asteroid and sending a rock sample back to Earth. Today, we’re going to take a look at what it brought back. Join our Patreon community: https://www.patreon.com/itsokaytobesmart References: https://www.asminternational.org/early-analysis-of-nasas-first-asteroid-return-sample/ https://arxiv.org/abs/2308.11794 https://www.lpl.arizona.edu/news/spotlight/first-look-bennu-sample-reveals-carbon-and-water https://www.nature.com/articles/d41586-023-03178-0 https://www.nature.com/articles/d41586-023-03978-4 https://science.nasa.gov/wp-content/uploads/2023/09/osirisrexpresskit-2023.pdf ----------- High fives to all our Brain Trust Patrons: Ed Eyden Jennifer Burton Charles Horton, Jr Holly, Brett, and Ashe Bullion Jaap Westera Mehdi Damou Barbora Bei Burt Humburg dani bowman David Johnston Baerbel Winkler Eric Meer Karen Haskell Join us on Patreon! https://patreon.com/itsokaytobesmart Instagram http://www.instagram.com/DrJoeHanson http://www.instagram.com/okaytobesmart Facebook https://www.facebook.com/itsokaytobesmartpbs/ Merch https://store.dftba.com/collections/its-okay-to-be-smart​ Learn more about your ad choices. Visit megaphone.fm/adchoices

  • August 26 · 21 min

    How Blind People See With Sound… with @MollyBurkeOfficial!

    PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateOKAY ↓ More info and sources below ↓ Come see me on Molly’s channel! https://youtu.be/MOmRQb7h5lw SUBSCRIBE so you don’t miss a video! ►► http://bit.ly/iotbs_sub I met Molly Burke a few months ago. She’s awesome. I absolutely love what she’s done on YouTube to bring awareness to living with disability, and turning it into ability. And her guide dog Gallop is awesome too! When Molly and I first met, we started talking about how she navigates the world, because I’m a nerd and I always steer the conversation toward science. I was not prepared for what she told me. She said she uses echolocation! Molly’s brain has adapted to listen to sounds in her environment in ways that most of us sighted people can’t even imagine. I went to meet her in LA and brought a special surprise, to see if my brain could learn what hers has. #echolocation #blind For audio descriptions, go to Settings - Audio Track - English Descriptive. Special thanks to Brian Bushway, Daniel Kish, Molly Burke and Gallop! Learn more about Brian Bushway and echolocation at https://visioneers.org Descriptive Audio & Captions provided by The Described and Captioned Media Program References: https://sites.google.com/view/echolcation-molly-burke/home ----------- 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 https://www.facebook.com/itsokaytobesmartpbs/ Books from our episodes: http://smart-books.tumblr.com/ Learn more about your ad choices. Visit megaphone.fm/adchoices

  • August 26 · 6 min

    How Humans Spoiled and Reclaimed an Ocean Paradise

    Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Check out #BigBlueLive! http://pbs.org/bigbluelive Share on FB ⇒ http://bit.ly/OKTBSriseFB ↓ More info and sources below ↓ Before people came to Monterey Bay to watch fish, they came here to catch them. And they caught a LOT of one fish: the sardine. But when you empty one species out of the ocean, bad things can happen. Learn how one Monterey Bay scientist, with the help of his friend John Steinbeck, changed how we view our relationship with nature and helped give birth to the field of ecology Why are we in Monterey? PBS and BBC are teaming up to bring you an incredible LIVE nature broadcast direct from Monterey Bay, California called BIG BLUE LIVE. In late summer, thousands and thousands of ocean animals come together here, in one of the richest ecosystems on Earth. We'll be bringing you a week of videos direct from Monterey Bay all about this incredible place and the biology it holds (some footage courtesy of Monterey Bay Aquarium) Big Blue Live airs nightly on PBS 8/31-9/2 at 8 PM ET Big Blue Live airs on BBC One 8/23 (7PM), 8/27 (8 PM), 8/30 (7 PM) More info here: pbs.org/bigbluelive facebook.com/PBS facebook.com/BBCBigBlueLive Follow Joe during Big Blue Live! Twitter/Periscope: @jtotheizzoe @okaytobesmart Snapchat: YoDrJoe Instagram: @jtotheizzoe Facebook: facebook.com/itsokaytobesmart 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.DFollow 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 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 (unless otherwise noted)​ Learn more about your ad choices. Visit megaphone.fm/adchoices

  • August 26 · 8 min

    The Science of Farts

    You can learn more at https://curiositystream.com/smart Give us a hand and SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ Farting is hilarious and gross and everyone is doing it so why can’t we talk about the science of it?! Flatulence, passing gas, cutting the cheese, toots… whatever you call it, it's natural and here's how it works. References: Does it Fart? By Nick Caruso and Dani Rabaiotti https://amzn.to/2IuJmmd https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1121900/ https://plato.stanford.edu/entries/humor/#IncThe ----------- 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 Creative Director: David Schulte Editor/animator: Karl Boettcher and Derek Borsheim Producers: Stephanie Noone and Amanda Fox Produced by PBS Digital Studios Music via APM Stock images from Shutterstock http://www.shutterstock.com Learn more about your ad choices. Visit megaphone.fm/adchoices

  • August 26 · 5 min

    What Causes Fire?

    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​ Learn more about your ad choices. Visit megaphone.fm/adchoices

  • August 26 · 8 min

    Extreme Deep Sea Creatures Are Eating The Titanic!

    Life, uh… finds a way Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ What have we learned from exploring Earth’s harshest locations? That pretty everywhere we look for life, we find it. From smoking hot hydrothermal vents to icy deserts, up in clouds and inside rocks, extremophiles have found a way to survive. These survivors and adapters are not only teaching us about life on Earth, but expanding the possibilities of where life can exist elsewhere. READ MORE: Horikoshi, K., Antranikian, G., Bull, A. T., Robb, F. T., & Stetter, K. O. (Eds.). (2010). Extremophiles handbook. Springer Science & Business Media. Schulze-Makuch, D., Airo, A., & Schirmack, J. (2017). The Adaptability of Life on Earth and the Diversity of Planetary Habitats. Frontiers in microbiology, 8, 2011. ----------- FOLLOW US: Merch: https://store.dftba.com/collections/its-okay-to-be-smart Facebook: http://www.facebook.com/itsokaytobesmart Twitter:@DrJoeHanson @okaytobesmart Tumblr: http://www.itsokaytobesmart.com Instagram: @DrJoeHanson ----------- It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D. Director: Joe Nicolosi Writer: Shaena Montanari, Ph.D. Producer/editor/animator: Jordan Husmann Producer: Stephanie Noone and Amanda Fox Produced by PBS Digital Studios Music via APM Stock images from Shutterstock http://www.shutterstock.com Learn more about your ad choices. Visit megaphone.fm/adchoices

  • August 26 · 21 min

    The Truth About Butterfly Metamorphosis (It's INCREDIBLY ODD)

    Check out @crashcourse Botany! https://www.youtube.com/watch?v=2th5lAd-77A ↓↓↓ More info and sources below ↓↓↓ Does any other creature on Earth undergo a life transformation as dramatic as the butterfly? I think not. Unfortunately, children's books about very hungry caterpillars skip all the COOL and WEIRD and GROSS stuff that happens along the way. It's time to dig into all the mind-blowing biology behind metamorphosis! Filmed on location at the California Academy of Sciences 0:00 We were lied to as kids 1:48 Metamorphosis is more common than you think 3:36 It starts with an egg 4:46 Eat/Poop/Grow 6:05 Busting the biggest butterfly myth of all 7:23 Time to take your skin off 8:40 Inside the "sack of magic" 11:08 Metamorphosis,… metamorphosis everywhere 11:55 Why do butterflies do this? 13:42 Sign up for our Patreon! High fives to all our Brain Trust Patrons: Holly, Brett, and Ashe Bullion Jaap Westera Millennial Glacier Mehdi Damou Barbora Bei Burt Humburg dani bowman David Johnston Baerbel Winkler Robert Young Eric Meer Dustin Karen Haskell Join us on Patreon! https://patreon.com/itsokaytobesmart 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 https://www.facebook.com/itsokaytobesmartpbs/​ Learn more about your ad choices. Visit megaphone.fm/adchoices

  • August 26 · 12 min

    The Strange and Unexpected Reason Ice is Slippery

    PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateOKAY ↓ More info and sources below ↓ Thank you to Nord VPN for supporting PBS. For more information go to: https://nordvpn.com/iotbs and use code: iotbs We’re on PATREON now! Join the community ►► https://www.patreon.com/itsokaytobesmart SUBSCRIBE so you don’t miss a video! ►► http://bit.ly/iotbs_sub I’m guessing you’re pretty familiar with ice. We use it in our drinks, slip on it, skate on it, worry about climate change melting it. But have you ever stopped to really think about this stuff? The freezing and melting of water affects so much of our world. It’s ice crystals in thunderclouds that create lightning. Ice is powerful enough crack boulders, float stones, and alter entire landscapes. Ice is such a common substance, you'd think we'd know everything about it by now. But it has some secrets and weird properties we’ve only just begun to figure out. One question about ice that's, still not totally answered, is one of the most obvious: why is ice slippery? It's a more complicated answer than it seems! References: https://sites.google.com/view/why-is-ice-slippery-references/home Special thanks to our Brain Trust Patrons: AlecZero Bob Rosset Brent M. Diego Lombeida Ron Kakar ----------- Join us on Patreon! https://patreon.com/itsokaytobesmart 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 Learn more about your ad choices. Visit megaphone.fm/adchoices

  • August 26 · 9 min

    What is Farthest Away?

    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 ↓↓↓ The edge of everything used to be the edge of the map. But now, thanks to what we know about astrophysics and the universe, the edge of everything might not even exist… REFERENCES: http://www.pnas.org/content/15/3/168 https://arxiv.org/abs/1101.5476 https://en.wikipedia.org/wiki/Early_world_maps https://cosmology.carnegiescience.edu/timeline ----------- 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: Mara Johnson-Groh Creative Director: David Schulte Editor/animator: Derek Borsheim Producers: Stephanie Noone and Amanda Fox Produced by PBS Digital Studios Music via APM Stock images from Shutterstock http://www.shutterstock.com Learn more about your ad choices. Visit megaphone.fm/adchoices

  • August 26 · 8 min

    Is Sugar a Drug?

    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 Learn more about your ad choices. Visit megaphone.fm/adchoices

  • August 26 · 9 min

    Why Don't Ants Get Jammed In Traffic?

    Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Go to http://Raceforretirement.com and see how the action gap affects you. Tweet this video ⇒ http://bit.ly/OKTBStraf Share on FB ⇒ http://bit.ly/OKTBStrafFB ↓ More info and sources below ↓ CGP Grey "The Simple Solution to Traffic" https://youtu.be/iHzzSao6ypE ASAPscience "How Not To Get Stuck In Traffic" https://youtu.be/APkpiO0QQ_k Book recommendation! "Traffic: Why We Drive the Way We Do" by Tom Vanderbilt http://amzn.to/2durlGP References: INRIX 2015 traffic stats: http://inrix.com/scorecard/key-findings-us/ Couzin, Iain D., and Nigel R. Franks. "Self-organized lane formation and optimized traffic flow in army ants." Proceedings of the Royal Society of London B: Biological Sciences 270.1511 (2003): 139-146. Fourcassié, Vincent, Audrey Dussutour, and Jean-Louis Deneubourg. "Ant traffic rules." Journal of Experimental Biology 213.14 (2010): 2357-2363. Hönicke, C., P. Bliss, and R. F. A. Moritz. "Effect of density on traffic and velocity on trunk trails of Formica pratensis." The Science of Nature 102.3-4 (2015): 1-9. Larson, Richard C. "There's More to a Line than its Wait." Technology Review 91.5 (1988): 60-67. Maister, David H. The psychology of waiting lines. Harvard Business School, 1984. Perna, Andrea, et al. "Individual rules for trail pattern formation in Argentine ants (Linepithema humile)." PLoS Comput Biol 8.7 (2012): e1002592. ---------------- 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 Learn more about your ad choices. Visit megaphone.fm/adchoices

  • August 26 · 7 min

    How Much Plastic Pollutes the Ocean?

    Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate What can you do to make the oceans plastic-free? (HINT: Hitting the subscribe button uses zero plastic) ↓↓↓Check the resources below ↓↓↓ Ocean plastic pollution is a massive environmental problem. Millions of tons of plastic waste enter the ocean every year, even plastic that goes in the trash can often ends up in the sea! This week we learn about the Great Pacific Garbage Patch and look at the dangers ocean plastic poses to ocean animals. Plus, a few tips for you to reduce your own plastic use! Plastic Oceans Foundation: http://www.plasticoceans.org/ United Nations “Clean Seas” program: http://www.cleanseas.org/ The 5 Gyres Institute: https://www.5gyres.org/ Lonely Whale Foundation: https://www.lonelywhale.org/ Take this quiz to learn about your plastic impact: https://www.nytimes.com/interactive/2016/science/bottled-water-or-tap.html 10 ways to reduce plastic pollution: https://www.nrdc.org/stories/10-ways-reduce-plastic-pollution The no plastic straw pledge: http://www.plasticpollutioncoalition.org/no-straw-please/ Ocean plastic pollution resources from Monterey Bay Aquarium: https://www.montereybayaquarium.org/conservation-and-science/our-priorities/ocean-plastic-pollution What will it take to get plastic out of the ocean? https://ensia.com/features/what-will-it-take-to-get-plastics-out-of-the-ocean/ Resources for teachers: https://www.montereybayaquarium.org/education/teacher-professional-development/ocean-plastic-pollution-summit ----------- REFERENCES: Cózar, Andrés, et al. "Plastic debris in the open ocean." Proceedings of the National Academy of Sciences 111.28 (2014): 10239-10244. Jamieson, Alan J., et al. "Bioaccumulation of persistent organic pollutants in the deepest ocean fauna." Nature Ecology & Evolution 1 (2017): 0051. Jambeck, Jenna R., et al. "Plastic waste inputs from land into the ocean." Science 347.6223 (2015): 768-771. “Moby-Duck” by Donovan Hohn (Harper’s Magazine) http://harpers.org/archive/2007/01/moby-duck/?single=1 ----------- 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 Learn more about your ad choices. Visit megaphone.fm/adchoices

  • August 26 · 25 min

    The Essential Question

    Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate The book: “The Fly Trap” by Fredrik Sjöberg http://amzn.to/1TlWrkw 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: @okaytobesmart @DrJoeHanson http://www.itsokaytobesmart.com Follow on Instagram: @DrJoeHanson Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios Music: Monkeys Spinning Monkeys Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 License http://creativecommons.org/licenses/by/3.0/​ Learn more about your ad choices. Visit megaphone.fm/adchoices

Showing 261–280 of 315 episodes