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- 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/PBSDSDonateGo 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/iHzzSao6ypEASAPscience "How Not To Get Stuck In Traffic" https://youtu.be/APkpiO0QQ_kBook recommendation! "Traffic: Why We Drive the Way We Do" by Tom Vanderbilt http://amzn.to/2durlGPReferences: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/itsokaytobesmartTwitter: http://twitter.com/okaytobesmarthttp://twitter.com/jtotheizzoeTumblr: http://www.itsokaytobesmart.comInstagram: http://instagram.com/jtotheizzoeSnapchat: YoDrJoeProduced by PBS Digital StudiosMusic via APMStock images from SciencePhoto http://www.sciencephoto.com/ and Shutterstock http://www.shutterstock.com
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10 min - How We Finally Solved the Monarch Butterfly Migration Mystery
PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateOKAY
↓ More info and sources below ↓
Uploaded 09-04-19
Follow me to Atlas Obscura to learn about the discovery of this place: https://youtu.be/mXc1ZeRlOe0
Grab a headset and experience the monarch forest in VR180: https://youtu.be/fSa605IfTiE
The monarch butterfly migration is one of nature’s greatest events. This orange-winged wonder travels up to 4,500 km from all over North America to spend the winter hanging from oyamel fir trees in central Mexico’s mountain forests. I got to go there. Seeing tens of millions of butterflies dangling from the treetops is a truly breathtaking sight. But how does an animal with a brain the size of a poppy seed navigate to this one special place, especially since the last monarchs to make the trip lived 4 or 5 generations earlier? Get ready for an amazing story of science, instinct, and navigation. #nature #monarchbutterfly #migration
Special thanks to:
Dr. Steven Reppert - UMass Medical School
Atlas Obscura: @atlasobscura
Jason Goldman: @jgold85
Phil Torres: @phil_torres
Filmed on location at:
La Reserva de Biosfera de la Mariposa Monarca - Michoacán, Mexico
Lady Bird Johnson Wildflower Center - Austin, Texas
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REFERENCES:
Guerra, P. A., and Reppert, S. M. (2013). Coldness triggers northward flight in remigrant monarch butterflies. Current Biology, 23(5), 419-423.
Reppert, S. M., Zhu, H., and White, R. H. (2004). Polarized light helps monarch butterflies navigate. Current Biology, 14(2), 155-158.
Reppert, S. M., Guerra, P. A., and Merlin, C. (2016). Neurobiology of monarch butterfly migration. Annual review of entomology, 61, 25-42.
Reppert, S. M., and de Roode, J. C. (2018). Demystifying monarch butterfly migration. Current Biology, 28(17), R1009-R1022.
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13 min - Extreme Deep Sea Creatures Are Eating The Titanic!
Life, uh… finds a way
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Uploaded 30-01-18
What have we learned from exploring Earth’s harshest locations? That pretty everywhere we look for life, we find it. From smoking hot hydrothermal vents to icy deserts, up in clouds and inside rocks, extremophiles have found a way to survive. These survivors and adapters are not only teaching us about life on Earth, but expanding the possibilities of where life can exist elsewhere.
READ MORE:
Horikoshi, K., Antranikian, G., Bull, A. T., Robb, F. T., and Stetter, K. O. (Eds.). (2010). Extremophiles handbook. Springer Science and Business Media.
Schulze-Makuch, D., Airo, A., and Schirmack, J. (2017). The Adaptability of Life on Earth and the Diversity of Planetary Habitats. Frontiers in microbiology, 8, 2011.
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It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D.
Director: Joe Nicolosi
Writer: Shaena Montanari, Ph.D.
Producer/editor/animator: Jordan Husmann
Producer: Stephanie Noone and Amanda Fox
Produced by PBS Digital Studios
Music via APM
Stock images from Shutterstock http://www.shutterstock.com
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8 min - Using a Bunch of Mousetraps to Explain How Pandemics Work (feat. @theslowmoguys)
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Uploaded 04-02-21
More vaccine info here: https://www.cdc.gov/vaccines/vac-gen/default.htm
Special thanks to @theslowmoguys ! https://www.youtube.com/user/theslowmoguys
Thanks to Gates Notes for Supporting PBS.
Since the start of the coronavirus COVID-19 pandemic, the term “herd immunity” has been all over the news. But what does it really mean? One thing most people don’t realize about vaccines is that they aren’t just to protect the person who gets the shot. They also protect the population as a whole… even people who didn’t get the shot. In this video, we use lots and lots of mousetraps and ping-pong balls to show you how that works. #coronavirus #vaccines
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References: https://sites.google.com/view/mousetrap-herd-immunity/home
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dani bowman
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Zenimal
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Denzel Holmes
Robert Young
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Jay Stephens
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19 min - Can Coral Reefs Adapt to Climate Change?This episode is brought to you by Dropbox https://www.dropbox.com/↓ More info and sources below ↓We can’t afford to wait any longer to act on climate change. Check out #OursToLose: https://www.youtube.com/watch?v=UgOV1dYdYVkReferences/Links:Coral/Zooxanthellae symbiosis: https://en.wikipedia.org/wiki/ZooxanthellaeGlobal coral bleaching event is underway in 2015: http://www.noaanews.noaa.gov/stories2015/100815-noaa-declares-third-ever-global-coral-bleaching-event.htmlLearn more about the effects and extent of coral bleaching: http://www.globalcoralbleaching.org/Could we ever lose all our corals? http://phenomena.nationalgeographic.com/2013/01/21/will-we-ever-lose-all-our-corals/Coral reef ecosystem species density: http://www.unesco.org/new/en/natural-sciences/ioc-oceans/priority-areas/rio-20-ocean/blueprint-for-the-future-we-want/marine-biodiversity/facts-and-figures-on-marine-biodiversity/Oceans absorb half of global CO2: http://news.nationalgeographic.com/news/2004/07/0715_040715_oceancarbon.htmlOceans absorb 90% of excess heat: http://e360.yale.edu/feature/how_long_can_oceans_continue_to_absorb_earths_excess_heat/2860/Extent of coral loss: http://wwf.panda.org/about_our_earth/blue_planet/coasts/coral_reefs/coral_facts/Coral reef accelerated evolution:van Oppen, Madeleine JH, et al. "Building coral reef resilience through assisted evolution." Proceedings of the National Academy of Sciences 112.8 (2015): 2307-2313. http://www.pnas.org/content/112/8/2307.fullHave 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/okaytobesmartFollow on Instagram: http://instagram.com/okaytbesmart-----------------It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D.Joe Hanson - Creator/Host/WriterJoe Nicolosi - DirectorAmanda Fox - Producer, Spotzen Inc.Kate Eads - ProducerAndrew Matthews - Editing/Motion Graphics/AnimationKatie Graham - CameraJohn Knudsen - GafferTheme music: “Ouroboros” by Kevin MacLeodOther music via APMStock images from Shutterstock, stock footage from Videoblocks (unless otherwise noted)
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7 min - Are You Cleverer Than A Slime Mold?Slime molds are intelligent, but they are single-celled creatures with no brains.How is that possible?↓ More info and sources below ↓I really hope you guys check out Deep Look, it’s one of my favorite channels, full of great 4K, micro-world goodness! http://goo.gl/8NwXqtMany thanks to Prof. Andy Adamatzky (UWE Bristol) for slime mold culturing advice.Special thanks to the following for providing Dictyostelium microscope footage:Prof. John Bonner (Princeton)Prof. David Knecht (Univ. of Connecticut)Prof. Richard Firtel (UCSD)Prof. Jeremy Pickett-Heaps (Univ. of Melbourne)References/further reading:“Intelligence in Nature” by Jeremy Narby http://amzn.to/23HvtKG“The Social Amoebae - The Biology of Cellular Slime Molds” by John Bonner http://amzn.to/1MEmmCRNakagaki, Toshiyuki. "Smart behavior of true slime mold in a labyrinth."Research in Microbiology 152.9 (2001): 767-770.Nakagaki, Toshiyuki, Hiroyasu Yamada, and Masahiko Hara. "Smart network solutions in an amoeboid organism." Biophysical chemistry 107.1 (2004): 1-5.Adamatzky, Andrew. Physarum machines: computers from slime mould. Vol. 74. World Scientific, 2010.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/itsokaytobesmartFollow on Twitter: http://twitter.com/okaytobesmarthttp://twitter.com/jtotheizzoeFollow on Tumblr: http://www.itsokaytobesmart.comFollow on Instagram: http://instagram.com/jtotheizzoeFollow on Snapchat: YoDrJoe-----------------It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D.Follow me on Twitter: @jtotheizzoeProduced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudiosMusic via APMStock images from Shutterstock http://www.shutterstock.comStock footage from Videoblocks (unless otherwise noted) http://www.videoblocks.com
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7 min - The INCREDIBLE Ancient Engineering That Built the Pyramids
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Uploaded 30-06-17
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..
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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
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10 min - 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
Uploaded 17-10-17
A brief history of time…
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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
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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
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8 min - Does The Moon Really Orbit The Earth?
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate
Uploaded 18-05-15
What holds the moon up? Moonbeams!
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According to Newton's law of gravitation, the sun should "pull" way harder on the moon than the Earth does. So does the moon actually orbit the Earth? Why?
Special thanks to Ariel for submitting this awesome question to our Facebook page!
Hill Spheres and lunar orbit: http://blogs.discovermagazine.com/badastronomy/2008/09/29/the-moon-that-went-up-a-hill-but-came-down-a-planet/#.VULLHq1Viko
True shape of moon's orbit: http://www.math.nus.edu.sg/aslaksen/teaching/convex.html
Newton's law of gravitation vs. Hill Sphere: https://van.physics.illinois.edu/qa/listing.php?id=18501
http://en.wikipedia.org/wiki/Hill_sphere
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!
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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
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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
Stephen Bohls - 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
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Last week's video:
What's The Loudest Possible Sound? https://www.youtube.com/watch?v=wi_aawsChqA
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
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6 min - How Humans Spoiled and Reclaimed an Ocean ParadiseViewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonateCheck out #BigBlueLive! http://pbs.org/bigblueliveShare 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 ecologyWhy 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 ETBig Blue Live airs on BBC One 8/23 (7PM), 8/27 (8 PM), 8/30 (7 PM)More info here:pbs.org/bigbluelivefacebook.com/PBSfacebook.com/BBCBigBlueLiveFollow Joe during Big Blue Live!Twitter/Periscope: @jtotheizzoe @okaytobesmartSnapchat: YoDrJoeInstagram: @jtotheizzoeFacebook: facebook.com/itsokaytobesmartHave 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/okaytobesmarthttp://twitter.com/jtotheizzoeFollow on Tumblr: http://www.itsokaytobesmart.comFollow on Instagram: http://instagram.com/jtotheizzoeFollow on Snapchat: YoDrJoe-----------------It's Okay To Be Smart is written and hosted by Joe Hanson, Ph.DFollow me on Twitter: @jtotheizzoeEmail me: itsokaytobesmart AT gmail DOT comFacebook: http://www.facebook.com/itsokaytobesmartFor more awesome science, check out: http://www.itsokaytobesmart.comProduced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudiosJoe Hanson - Creator/Host/WriterJoe Nicolosi - DirectorAmanda Fox - Producer, Spotzen IncKate Eads - ProducerAndrew Matthews - Editing/Motion Graphics/AnimationKatie Graham - CameraJohn Knudsen - GafferTheme music: "Ouroboros" by Kevin MacLeodOther music via APMStock images from Shutterstock, stock footage from Videoblocks (unless otherwise noted)
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7 min
About Be Smart.
From the publisher's feed
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