A Brief History Of (Keeping) Time

Why Y Is a Vowel Through Physics (and so is W)

We’re on PATREON! ►► Join the community https://www.patreon.com/itsokaytobesmart ↓↓↓ More info and sources below ↓↓↓ Human language is an incredible thing: a combination of mouth sounds that we combine into words, sentences, poems, and constitutions. They carry meaning, emotion, and power. But underneath it all, language is really just physics. In this episode, we explore how physics is at the core of every syllable, starting with the first word most of us ever speak. Try the Pink Trombone vocal simulator! - https://experiments.withgoogle.com/pink-trombone References: https://sites.google.com/view/vowel-sounds-physics/home SUBSCRIBE so you don’t miss a video! ►► http://bit.ly/iotbs_sub 0:00 Your voice is just physics 1:16 Some basics of linguistics 2:27 There are more than 5 vowels? 4:49 The physics of the vocal tract 7:04 Resonance and sound filters 8:47 How vowels are an acoustic illusion 11:25 Finding vowels in surprising places 13:09 A touching moment 13:45 The extra bits ----------- High fives to all our Brain Trust Patrons: 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 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 [https://megaphone.fm/adchoices]

Fact vs. Theory vs. Hypothesis vs. Law… BROKEN DOWN!

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Think you know the difference? Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Some people try to attack things like evolution by natural selection and man-made climate change by saying “Oh, that’s just a THEORY!” Yes, they are both theories. Stop saying it like it’s a bad thing! It’s time we learn the difference between a fact, a theory, a hypothesis, and a scientific law. 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 [https://megaphone.fm/adchoices]

The INCREDIBLE Ancient Engineering That Built the Pyramids

Try Skillshare at http://skl.sh/besmart Help us build something great and SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓↓↓More info and sources below ↓↓↓ You asked for it, so here’s the follow-up! Just because something is difficult doesn’t mean it’s impossible. Over the past centuries, archaeologists, historians, and engineers have reconstructed a great deal of the technology and science used to build the Egyptian pyramids. This week we look at ancient Egyptian mathematics, building techniques, tools, and culture to reconstruct the Great Pyramid’s construction. REFERENCES: Fall, Abdoulaye, et al. "Sliding friction on wet and dry sand." Physical review letters 112.17 (2014): 175502. Lehner, M. (1997). The complete pyramids. Thames and Hudson. Parry, D. (2005). Engineering the pyramids. The History Press. Smith, Craig B., Zahi Hawass, and Mark Lehner. How the great pyramid was built. Harper Collins, 2006. Verner, M. (2003). The pyramids: their archaeology and history. Atlantic. Verner, M. (2007). The Pyramids: The Mystery, Culture, and Science of Egypt's Great Monuments. Grove/Atlantic, Inc.. ----------- FOLLOW US: Merch: https://store.dftba.com/collections/its-okay-to-be-smart Facebook: http://www.facebook.com/itsokaytobesmart Twitter/Instagram: @okaytobesmart @DrJoeHanson Tumblr: http://www.itsokaytobesmart.com ----------- It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D. Director: Joe Nicolosi Writer: Joe Hanson Producer/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 [https://megaphone.fm/adchoices]

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 [https://megaphone.fm/adchoices]

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 [https://megaphone.fm/adchoices]