Why Is The Universe So Empty? (ft. PHD Comics!)

Why Is The Universe So Empty? (ft. PHD Comics!)

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate A collaboration with Jorge Cham and Daniel Whiteson. Their book: http://www.WeHaveNoIdea.com Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ Why is the universe organized the way it is? And why is it so empty? From planets and stars to superclusters and galactic filaments, the universe’s largest structures formed because of its smallest. In this special collaboration with PHD Comics, we’ll learn how the earliest, quantumest blips seeded the structure of everything everywhere. Special thanks to Jorge Cham and Daniel Whiteson! http://phdcomics.com/ @PHDcomics @DanielWhiteson ----------- READ MORE: Check out “We Have No Idea”: http://amzn.to/2yFfWyr We used visualizations from: NASA Goddard https://svs.gsfc.nasa.gov The Aquarius Project http://wwwmpa.mpa-garching.mpg.de/aquarius/ ----------- 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, Ph.D. Editor/animator: David Schulte Additional animation: Jorge Cham 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]

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 [https://megaphone.fm/adchoices]

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 [https://megaphone.fm/adchoices]

The Surprising Places We Squander Power

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 ↓ We use a LOT of energy, but we waste a lot too. Where that waste happens might surprise, you though. We don't just waste energy when we leave the lights on or the thermostat cranked down too low. It happens at the dinner table and the water faucet as too! 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 Learn more about your ad choices. Visit megaphone.fm/adchoices [https://megaphone.fm/adchoices]

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 [https://megaphone.fm/adchoices]