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

  1. Did Dinosaurs Truly Become Extinct?

    -2 h

    Did Dinosaurs Truly Become Extinct?

    Welcome to… Jurassic Pluck Subscribe: http://bit.ly/iotbs_sub Twitter: @DrJoeHanson @okaytobesmart ↓ More info and sources below ↓ Most people are taught that dinosaurs went extinct 66 million years ago when a giant meteor crashed into the Yucatan peninsula. I'm here to tell you that's wrong. Dinosaurs are alive and well today, and you don't have to go to Jurassic World to see them (although hanging out with Chris Pratt would be cool) We have living dinosaurs all around us. We just call them "birds". Yes. Birds are dinosaurs. Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate The tetrapod playlist: https://www.youtube.com/playlist?list=PLsmqeqKj7M-oVnyE5_1x-dUFYHxLLQmRD Special thanks to Scott Hartman (http://www.skeletaldrawing.com/) for the great Deinonychus and Archaeopteryx illustrations More info/sources: Great Audubon article on dinosaur-bird evolution http://www.audubon.org/magazine/january-february-2015/which-came-first-dinosaur-or-bird Dig deeper with this hour-long Yale lecture by Dr. Richard Prum: https://www.youtube.com/watch?v=Ao7Q8kOqjfs Dr. John Hutchinson's research on dinosaur/bird posture http://whatsinjohnsfreezer.com/2013/04/24/3d_dinosaurs/ Chickens wearing prosthetic tails, for science! http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0088458 T. rex had a wishbone: http://www.smithsonianmag.com/science-nature/this-thanksgiving-make-a-wish-on-a-dinosaur-87598064/?no-ist Did prey grasping of dinosaurs evolve into bird flight stroke? http://www.ucmp.berkeley.edu/vertebrates/flight/aves.html Reconstructing dinosaur sounds http://www.sandia.gov/LabNews/LN12-19-97/dinosaur_story.html Great TED-Ed video on the evolution of feathers in dinosaurs: https://www.youtube.com/watch?v=hPLgfGX1I5Y Brian Switek on dinosaur feathers: http://www.smithsonianmag.com/ist/?next=/science-nature/feathers-fuel-dinosaur-flight-debate-146139689/ What do birds see? http://www.nwf.org/news-and-magazines/national-wildlife/birds/archives/2012/bird-vision.aspx Tetrachromacy and feathers in dinosaurs: http://www.sciencemag.org/content/346/6208/416.short 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 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 Birds of paradise clips via PBS Nature​ Learn more about your ad choices. Visit megaphone.fm/adchoices

    8 min
  2. -2 h

    The Cheerios Effect

    Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Who knew there was so much science in a bowl of cereal? Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ Ever notice how cereal clumps up in your bowl, or how cereal sticks to the edges of the bowl? Bubbles in beverages do the same thing.You've probably seen this surface tension and buoyancy at work, but did you know there's some mind-blowing science behind it? What we learn in our cereal bowl even connects to the lives of tiny insects that walk on water. SOURCES/EXTRAS: Vella, Dominic, and L. Mahadevan. "The “cheerios effect”." American journal of physics 73.9 (2005): 817-825. Gao, Xuefeng, and Lei Jiang. "Biophysics: water-repellent legs of water striders." Nature 432.7013 (2004): 36-36. Bush, John WM, and David L. Hu. "Walking on water: biolocomotion at the interface." Annu. Rev. Fluid Mech. 38 (2006): 339-369. John Bush: Interfacial Locomotion http://math.mit.edu/~bush/?p=998 ----------- 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 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 Learn more about your ad choices. Visit megaphone.fm/adchoices

    7 min
  3. I Tried to Strike an MLB Fastball to Learn About Sports Neuroscience

    -3 h

    I Tried to Strike an MLB Fastball to Learn About Sports Neuroscience

    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 this ⇒ http://bit.ly/OKTBSbase Share on FB ⇒ http://bit.ly/OKTBSbaseFB ↓ More info and sources below ↓ We’ve got t-shirts! Get yours here: http://store.dftba.com/collections/its-okay-to-be-smart DISCLAIMER: I have very bad hitting form. Baseball was never my thing :) Special thanks to: The Round Rock Express Sharp End Baseball (Ben Himes, Aaron Smith, Jamie League) Genevieve Nauhaus, Ph.D and Michael D. Mauk, Ph.D. for research help References: Rob Gray “Intercepting Moving Objects: Fundamental Principles Learned from Baseball” Reviews of Human Factors and Ergonomics, June 2009 http://rev.sagepub.com/content/5/1/114.abstract Rob Gray “A Model of Motor Inhibition for a Complex Skill: Baseball Batting” J Exp Psychol Appl. June 2009 http://www.ncbi.nlm.nih.gov/pubmed/19586249 Sean Müller & Bruce Abernethy, “Expert Anticipatory Skill in Striking Sports, Research Quarterly for Exercise and Sport” 2012 http://dx.doi.org/10.1080/02701367.2012.10599848 Dr. Daniel Laby, Dr. David Kirschen & Tony Abbatine “A Visual Profile of Major League Hitters” http://xtremesight.com/documents/A%20Visual%20Profile%20of%20Major%20League%20Hitters.pdf 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

    8 min
  4. Why I'm Uneasy Around Spiders

    -3 h

    Why I'm Uneasy Around Spiders

    The science of-- OH GOD IS THAT A SPIDER?! Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub 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 Produced for PBS Digital Studios 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 ----------- 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

    4 min
  5. How Humans Spoiled and Reclaimed an Ocean Paradise

    -4 h

    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

    5 min
  6. How Much Plastic Pollutes the Ocean?

    -5 h

    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

    7 min

À propos

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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