Is This A NEW SPECIES?!

A Brief History Of (Keeping) Time

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate A brief history of time… Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ How did we come up with our system of telling time? Why do we divide the day into 24 hours of 60 minutes each, and put 60 seconds in each minute? Where does the definition of a second come from? And who decides what clock shows the correct time? There’s clearly a lot of questions when it comes to time. READ MORE: “Galileo’s Pendulum” - Roger Newton http://amzn.to/2yQri5E “Revolution in Time” - David Landes http://www.worldcat.org/oclc/890167780 ----------- 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 ----------- It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D. Director: Joe Nicolosi Writer: Matt Caplan, Ph.D. and Joe Hanson, Ph.D. Editor/animator: David Schulte 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 [https://megaphone.fm/adchoices]

Is This A NEW SPECIES?!

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Order my Maker Box from Quarterly ►► http://on.qrtr.ly/ItsOKtoMake Don’t miss the next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓ More info and sources below ↓ This is the first-ever video of what we’re calling the "hermit crab caterpillar"! We’re pretty sure this strange caterpillar is a NEW SPECIES. We went to the Peruvian Amazon to see amazing things, but we never expected this :) But that makes me wonder: What *is* a species anyway? And how do you know if you’ve found a new species? These people helped make this episode happen: Aaron Pomerantz https://www.instagram.com/nextgenscientist/ Daniel Couceiro: https://www.instagram.com/danicouceiro21/ Ryan St. Laurent - Florida Museum of Natural History Dr. Andy Warren - Florida Museum of Natural History Dr. Daniel Janzen - University of Pennsylvania Special thanks to our hosts Rainforest Expeditions: http://www.perunature.com/ LEARN MORE: Mayden, R. L. (1997). A hierarchy of species concepts: the denouement in the saga of the species problem. In M. F. Claridge, H. A. Dawah & M. R. Wilson (eds.), Species: The units of diversity,. Chapman & Hall. pp. 381–423. Sutton, G., & Dickson, G. (1965). Interbreeding of the Eastern and Western Meadowlarks in Central Oklahoma. The Southwestern Naturalist, 10(4), 307-310. doi:10.2307/3669307 FOLLOW US: It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D. Director: Joe Nicolosi Editor/animator/producer: Andrew Matthews Producer: Stephanie Noone and Amanda Fox Facebook: http://www.facebook.com/itsokaytobesmart Twitter: @okaytobesmart @DrJoeHanson Tumblr: http://www.itsokaytobesmart.com Instagram: @DrJoeHanson Snapchat: YoDrJoe 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 [https://megaphone.fm/adchoices]

What Has New Horizons Disclosed About Pluto?

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Pluto's not just cool… it's ICE COLD Tweet ⇒ http://bit.ly/OKTBSpluto Share on FB ⇒ http://bit.ly/OKTBSplutoFB ↓ More info and sources below ↓ Since New Horizons flew by Pluto on July 14, 2015, it's completely redefined what we know about the dwarf planet and its largest moon Charon. New Horizons' mission will continue to be full of surprises, but here's what we've learned so far T-SHIRTS! http://dftba.com/besmart Unless otherwise noted, all images and animations courtesy of NASA/JHUAPL/SwRI MORE NEW HORIZONS STUFF: Calculate your Pluto time: http://solarsystem.nasa.gov/plutotime/ New Horizons image gallery: https://www.nasa.gov/mission_pages/newhorizons/images/index.html Planetary Society New Horizons news: http://www.planetary.org/blogs/blog-archive.html?keywords=new-horizons Nadia Drake's excellent New Horizons coverage: http://phenomena.nationalgeographic.com/search/pluto Pluto and Charon are weird: http://news.nationalgeographic.com/2015/07/150715-pluto-flyby-photos-pictures-closeup-space/ What kind of ices are on Pluto? http://space.io9.com/the-ice-of-pluto-is-more-diverse-than-we-realized-1717986243 Pluto's hazy atmosphere: https://www.nasa.gov/press-release/nasa-s-new-horizons-team-finds-haze-flowing-ice-on-pluto Geologic features of Pluto and Charon: http://space.io9.com/were-actively-creating-the-geekiest-world-in-the-univer-1721448557 What are tholins? Why Pluto looks red: http://www.planetary.org/blogs/guest-blogs/2015/0722-what-in-the-worlds-are-tholins.html Pluto's other moons, Nix and Hydra: http://www.nasa.gov/image-feature/new-horizons-captures-two-of-plutos-smaller-moons/ Pluto's family portrait: http://www.planetary.org/multimedia/space-images/small-bodies/pluto-system-family-portrait.html Dwarf planets of the solar system: http://www.space.com/18584-dwarf-planets-solar-system-infographic.html Catalog of unusual "minor planet objects" in solar system: http://www.minorplanetcenter.net/iau/lists/Unusual.html ----------- 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/ Joe Hanson - Creator/Host/Writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen IncKate Eads - Producer Stephen Bohls - 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 Learn more about your ad choices. Visit megaphone.fm/adchoices [https://megaphone.fm/adchoices]

Why Do We Smile?

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Several jokes were harmed in the making of this video Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓ More info and sources below ↓ T-SHIRTS! http://dftba.com/besmart Laughing is a universal human behavior, one that transcends borders of language and culture. But it's also REALLY WEIRD. Why do we do it? The answer has less to do with humor than you might think Learn more: "Laughter: A Scientific Investigation" by Robert Provine http://amzn.to/1fzZQLy "Ha! The Science of When We Laugh and Why" by Scott Weems http://amzn.to/1etLLyv 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 [https://megaphone.fm/adchoices]

How These Ants Swept Across the U.S. 🔥🔥🔥🔥🔥

And how we're fighting back! 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 Special thanks to Dr. Rob Plowes from the University of Texas at Austin fire ant research lab for letting us come film their ants and phorid flies: http://www.sbs.utexas.edu/fireant/Research%20Program.html If you want to learn everything there is to know about fire ants, read "The Fire Ants" by Walter R. Tschinkel http://amzn.to/1U8jz1S Check your local library! https://www.worldcat.org/title/fire-ants/oclc/64379652 Rachel Carson - "Silent Spring" http://amzn.to/20QwWbM Fire ant raft - Matt Bennett https://www.youtube.com/watch?v=FA-e65i3bDs Fire ant escape rafts - Company of biologists https://www.youtube.com/watch?v=UxjT99l0mqw ---- 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/drjoehanson Follow on Instagram: http://instagram.com/DrJoeHanson ----------------- 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 [https://megaphone.fm/adchoices]