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. 1h ago

    Is Space a Thing?

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

  2. 2h ago

    Why Salt & Pepper Became Fixtures On Every Table

    Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Join the #AnythingButPepper movement! Tweet this video ⇒ http://bit.ly/OKTBSsp Share on FB ⇒ http://bit.ly/OKTBSspFB ↓ More info and sources below ↓ Get yourself an awesome IOTBS shirt! http://dftba.com/besmart “Salt: A World History” by Mark Kurlansky http://amzn.to/29vj9m4 “Pepper: A History of the World’s Most Influential Spice” by Marjorie Shaffer http://amzn.to/29BORCW ---------------- 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 Learn more about your ad choices. Visit megaphone.fm/adchoices

    Why Salt & Pepper Became Fixtures On Every Table

  3. 3h ago

    How An Igloo Protects You From Cold

    Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Building a perfect igloo takes cool science! Don’t miss the next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓ More info and sources below ↓ If you ever find yourself stranded in the snowy Arctic (or bored in Minecraft), you’re gonna need to know how to build an igloo. But how can building a house made of ice keep you warm? The science behind building an igloo is the same reason that otters and reindeer don't freeze to death! LEARN MORE: There really ARE 50 Eskimo words for snow: http://wapo.st/2iwThf3 PBS Idea Channel - An Infinite Number of Words for Snow https://www.youtube.com/watch?v=CX6i2M4AoZw Why there’s no such thing as cold: https://www.youtube.com/watch?v=Akd7MMRKDwc How early humans settled the Arctic: https://uaf.edu/files/olli/Denbigh-Slides_lowres.pdf How to build a scientifically perfect igloo: http://www.popsci.com/how-to-build-an-igloo It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D. Facebook: http://www.facebook.com/itsokaytobesmart Twitter: @okaytobesmart @DrJoeHanson Tumblr: http://www.itsokaytobesmart.com Instagram: @DrJoeHanson 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

    How An Igloo Protects You From Cold

  4. 3h ago

    Why Are So Many People Allergic To Food?

    You can learn more at https://curiositystream.com/smart Go check out Sound Field! http://bit.ly/2HH9sG1 SUBSCRIBE so you don’t miss a video! ►► http://bit.ly/iotbs_sub More people have food allergies than ever before. Peanuts, tree nuts, shellfish, eggs, and even milk… the list of possibly dangerous foods seems to get longer every day. But why do some people’s bodies have deadly reactions food? And why are food allergies on the rise? In this video we explain what food allergies really are, and what the difference is between food allergy and food intolerance. Some fellow YouTubers tell us their stories of what it’s like to live with food allergies, and we bring you the best current science on how to prevent food allergies in kids and adults. It’s a tough nut to crack. #FoodAllergy #Allergies #FoodScience Special thanks to WheezyWaiter and Emily Graslie for sharing their food allergy stories with us! https://www.youtube.com/user/wheezywaiter https://www.youtube.com/user/thebrainscoop Want to learn more about allergies? Watch this: https://www.youtube.com/watch?v=sqrnShjM4II ----------- REFERENCES: Anagnostou, Katherine, and Andrew Clark. "Oral immunotherapy for peanut allergy." Annual review of medicine 67 (2016): 375-385. Sathe, S. K., Liu, C., & Zaffran, V. D. (2016). "Food allergy." Annual review of food science and technology, 7, 191-220. Tyagi, Nidhi, et al. "Comparisons of allergenic and metazoan parasite proteins: allergy the price of immunity." PLoS computational biology 11.10 (2015): e1004546. Willits, Erin K., et al. "Food Allergy: A Comprehensive Population-Based Cohort Study." Mayo Clinic Proceedings. Vol. 93. No. 10. Elsevier, 2018. Wong, L., Huang, C. H., & Lee, B. W. (2016). "Shellfish and house dust mite allergies: is the link tropomyosin?." Allergy, asthma & immunology research, 8(2), 101-106. ----------- 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/ Learn more about your ad choices. Visit megaphone.fm/adchoices

  5. 4h ago

    Your Salad Is Attempting To Murder You

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

    Your Salad Is Attempting To Murder You

  6. 5h ago

    What’s The Hottest Hot and Coldest Cold?

    Want more cool physics? Check out Physics Girl! http://youtube.com/physicsgirl Be cool and SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ The hottest and coldest temperatures in our universe are rarely witnessed, but in these rare spots, our understanding of physics is challenged. Weird things happen at extreme hot and absolute cold. References: Clark, J. B., Lecocq, F., Simmonds, R. W., Aumentado, J., & Teufel, J. D. (2017). Sideband cooling beyond the quantum backaction limit with squeezed light. Nature, 541(7636), 191. An Introduction to Modern Astrophysics, 2nd ed, Bradley W Carroll and Dale A Ostlie, 2006. An Introduction to Thermal Physics, Daniel Schroeder, 1999. ----------- 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: 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

  7. 6h ago

    How Baby Sea Turtles Find Their Route Home

    Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate The cutest conservation story ever? Maybe. Do it for the turtles… SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Want to wear your love for science? We’ve got merch: http://dftba.com/besmart Special thanks to Dr. Donna Shaver and the Padre Island National Seashore Division of Sea Turtle Science and Recovery for having us! Andrés Herrera film courtesy of Dr. Thane Wibbels - University of Alabama at Birmingham References/Learn More: Bevan, E., et al. "Estimating the historic size and current status of the Kemp's ridley sea turtle (Lepidochelys kempii) population." Ecosphere 7.3 (2016). Johnsen, Sönke, and Kenneth J. Lohmann. "The physics and neurobiology of magnetoreception." Nature Reviews Neuroscience 6.9 (2005): 703-712. Lohmann, Kenneth J., Nathan F. Putman, and Catherine MF Lohmann. "Geomagnetic imprinting: a unifying hypothesis of long-distance natal homing in salmon and sea turtles." Proceedings of the National Academy of Sciences105.49 (2008): 19096-19101. Lohmann, Kenneth, and Catherine Lohmann. "Detection of magnetic inclination angle by sea turtles: a possible mechanism for determining latitude." Journal of Experimental Biology 194.1 (1994): 23-32. Putman, Nathan F., et al. "Evidence for geomagnetic imprinting as a homing mechanism in Pacific salmon." Current Biology 23.4 (2013): 312-316. Shaver, Donna J., and Charles W. Caillouet Jr. "Reintroduction of Kemp's ridley (Lepidochelys kempii) sea turtle to Padre Island National Seashore, Texas and its connection to head-starting." Herpetological Conservation and Biology 10.1 (2015): 378-435. Ueda, H. "Physiological mechanisms of imprinting and homing migration in Pacific salmon Oncorhynchus spp." Journal of fish biology 81.2 (2012): 543-558. ---------------- 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

    How Baby Sea Turtles Find Their Route Home

  8. 7h ago

    Cuttlefish: Psychedelic Camouflage Chameleons of the Sea

    Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate ↓ More info and sources below ↓ Now you "sea" them, now you don't! Cuttlefish are more than the chameleons of the sea, these cephalopods take camouflage to a whole new level. Follow Joe during Big Blue Live! Twitter @DrJoeHanson @okaytobesmart Instagram: @DrJoeHanson Facebook: facebook.com/itsokaytobesmart ----------------- 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 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

    Cuttlefish: Psychedelic Camouflage Chameleons of the Sea
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About

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

Information

  • Creator
    Joe Hanson
  • Years Active
    2026
  • Episodes
    262