How a Nuclear Submarine Punches Through Arctic Ice (Final Deep Dive Video) – Smarter Every Day 260

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How I Boarded A US NAVY NUCLEAR SUBMARINE in the Arctic (ICEx 2020) – Smarter Every Day 237

Boarding A US NAVY NUCLEAR SUBMARINE in the Arctic – Smarter Every Day 240

Crawling Down a Torpedo Tube – US NAVY Nuclear Submarine – Smarter Every Day 241

How to Fight Fire or Flooding on a Nuclear Submarine – Smarter Every Day 244

How to Make Pizza on a Submarine – Smarter Every Day 246

How Sonar Works (Submarine Shadow Zone) – Smarter Every Day 249

How Do Nuclear Submarines Make Oxygen? – Smarter Every Day 251

How to Poop on a Nuclear Submarine – Smarter Every Day 256

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Farming Evolved: Agriculture Through A different Lens | Seth Watkins | TEDxDesMoines

Sustainable agriculture. Seth Watkins is a fourth-generation steward of his family’s farm, called Pinhook Farm, near Clarinda, Iowa. Seth is passionate about stewardship of land and natural resources (especially water quality and the restoration of prairie, woodlands, and riparian corridors) and producing an equitable food system. By using and teaching conservation practices, Seth promotes healthy and diverse landscapes for future generations. Seth’s overall mission of building a food system that values equality – including inclusion and accessibility – combined with stewardship are what he sees as being essential to preventing shortages of nutritious food and clean water. He serves on the board for several nonprofit conservation organizations including the Iowa Natural Heritage Foundation, the Golden Hills RC&D in rural western Iowa, and the Iowa Learning Farms which is run by Iowa State University in Ames. Seth lives with his wife, Christy, and their two young children, Spencer and Tatum. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx

The New Oldest Animal Fossils?

A new study reports what might be the oldest fossil animals ever found. And we’re also learning more about what role the hippocampus plays in certain types of visual memory.

Hosted by: Hank Green

SciShow has a spinoff podcast! It’s called SciShow Tangents. Check it out at http://www.scishowtangents.org
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Sources:
https://www.nature.com/articles/s41586-021-03773-z
https://press.springernature.com/possible-poriferan-body-fossils-in-early-neoproterozoic-microbia/19347570
https://pubs.usgs.gov/fs/2007/3015/fs2007-3015.pdf
https://science.sciencemag.org/content/366/6471/1333.full

https://www.eurekalert.org/emb_releases/2021-07/piam-bc071921.php
http://dx.doi.org/10.1016/j.cub.2021.06.079

Images:
https://www.istockphoto.com/photo/seascape-of-coral-reef-in-the-caribbean-sea-around-curacao-with-various-corals-and-gm1042997770-279209291
https://www.istockphoto.com/photo/animals-of-the-cambrian-period-underwater-scene-with-anomalocaris-opabinia-gm1155964966-314896881
https://www.nature.com/articles/s41586-021-03773-z#Fig4
https://www.inaturalist.org/photos/136803694
https://www.istockphoto.com/photo/view-of-the-earth-from-space-gm482119728-69834959
https://commons.wikimedia.org/wiki/File:Pavilion_Lake_microbialite_towers.jpg
https://www.jpl.nasa.gov/images/lake-salda-rocks
https://www.istockphoto.com/vector/hippocampus-vector-illustration-labeled-diagram-with-isolated-closeup-gm1053259742-281397203
https://www.istockphoto.com/photo/stained-glass-seamless-texture-with-rectangle-pattern-for-window-colored-glass-3d-gm1191619458-338248677
https://www.istockphoto.com/photo/stained-glass-seamless-texture-colored-glass-with-rhombus-pattern-for-window-3d-gm1198679781-342668517
https://www.istockphoto.com/vector/how-eye-work-medical-illustration-eye-brain-diagram-eye-structure-and-connection-gm922038408-253156029
https://www.eurekalert.org/multimedia/530056
https://www.istockphoto.com/photo/wheres-waldo-gm95505710-11524580
https://www.istockphoto.com/vector/light-bulb-with-rays-lighting-electric-lamp-creative-idea-solution-thinking-concept-gm1149246206-310650269

The Hardest Problem in Type Theory – Computerphile

Equality sounds a straightforward idea, but there are subtle problems in theoretical computer science. Professor Thorsten Altenkirch explains how his late friend Martin Hofmann solved one of the biggest problems.

More of Thorsten on Type Theory: https://bit.ly/C_Thor_playlist

Thorsten’s paper dedicated to Martin: https://bit.ly/C_Thor_Paper

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This video was filmed and edited by Sean Riley.

Computer Science at the University of Nottingham: https://bit.ly/nottscomputer

Computerphile is a sister project to Brady Haran’s Numberphile. More at http://www.bradyharan.com

Why aren’t there more Native American restaurants? | Sean Sherman

Visit http://TED.com to get our entire library of TED Talks, transcripts, translations, personalized talk recommendations and more.

When you think of North American cuisine, do Indigenous foods come to mind? Chef Sean Sherman serves up an essential history lesson that explains the absence of Native American culinary traditions across the continent, highlighting why revitalizing Indigenous education sits at the center of a better diet and healthier relationship with the planet.

The TED Talks channel features the best talks and performances from the TED Conference, where the world’s leading thinkers and doers give the talk of their lives in 18 minutes (or less). Look for talks on Technology, Entertainment and Design — plus science, business, global issues, the arts and more. You’re welcome to link to or embed these videos, forward them to others and share these ideas with people you know.

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The Simplest Math Problem No One Can Solve

The Collatz Conjecture is the simplest math problem no one can solve — it is easy enough for almost anyone to understand but notoriously difficult to solve. This video is sponsored by Brilliant. The first 200 people to sign up via https://brilliant.org/veritasium get 20% off a yearly subscription.

Special thanks to Prof. Alex Kontorovich for introducing us to this topic, filming the interview, and consulting on the script and earlier drafts of this video.

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References:
Lagarias, J. C. (2006). The 3x+ 1 problem: An annotated bibliography, II (2000-2009). arXiv preprint math/0608208. — https://ve42.co/Lagarias2006

Lagarias, J. C. (2003). The 3x+ 1 problem: An annotated bibliography (1963–1999). The ultimate challenge: the 3x, 1, 267-341. — https://ve42.co/Lagarias2003

Tao, T (2020). The Notorious Collatz Conjecture — https://ve42.co/Tao2020

A. Kontorovich and Y. Sinai, Structure Theorem for (d,g,h)-Maps, Bulletin of the Brazilian Mathematical Society, New Series 33(2), 2002, pp. 213-224.

A. Kontorovich and S. Miller Benford’s Law, values of L-functions and the 3x+1 Problem, Acta Arithmetica 120 (2005), 269-297.

A. Kontorovich and J. Lagarias Stochastic Models for the 3x + 1 and 5x + 1 Problems, in “The Ultimate Challenge: The 3x+1 Problem,” AMS 2010.

Tao, T. (2019). Almost all orbits of the Collatz map attain almost bounded values. arXiv preprint arXiv:1909.03562. — https://ve42.co/Tao2019

Conway, J. H. (1987). Fractran: A simple universal programming language for arithmetic. In Open problems in Communication and Computation (pp. 4-26). Springer, New York, NY. — https://ve42.co/Conway1987

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Written by Derek Muller, Alex Kontorovich and Petr Lebedev
Animation by Iván Tello, Jonny Hyman, Jesús Enrique Rascón and Mike Radjabov
Filmed by Derek Muller and Emily Zhang
Edited by Derek Muller
SFX by Shaun Clifford
Additional video supplied by Getty Images
Produced by Derek Muller, Petr Lebedev and Emily Zhang

3d Coral by Vasilis Triantafyllou and Niklas Rosenstein — https://ve42.co/3DCoral
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Why the US Army tried to exterminate the bison

And then took credit for “saving” them.

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In 1894, a notorious poacher, Ed Howell, was caught in Yellowstone National Park slaughtering bison, which were on the brink of extinction. US Army soldiers patrolling the park brought him into custody, and the story led to the first US federal law protecting wildlife. The soldiers were thought of as heroes for stopping the killer. But it was the US Army who had been responsible for driving bison to near-extinction in the first place.

In the mid-1800s, a cultural belief known as “manifest destiny” dictated that white settlers were the rightful owners of the entire North American continent – even though Native Americans had inhabited the land for centuries. In order to clear that land for white settlers, the US Army engaged in violent scorched-earth tactics against the Indigenous peoples of the Great Plains. One big part of that campaign was to eliminate their crucial food source: the bison.

By the end of the 1800s, a combination of commercial and recreational hunting, plus the actions of the US Army, had depleted the bison population to under a thousand, down from tens of millions at the beginning of the century. Around the same time, the US government set aside some of the land once inhabited by the Plains Indians as a national park, and in 1872 Yellowstone was established.

A key mission of Yellowstone was to conserve the land and the animals that roamed there, including the bison. Today, the soldiers that once patrolled the park are celebrated for having “saved” the bison in Yellowstone, obscuring their own violent contribution to the animal’s near-extinction.

Darkroom is a history and photography series that anchors each episode around a single image. Analyzing what the photo shows (or doesn’t show) provides context that helps unravel a wider story. Watch previous episodes here: https://www.youtube.com/playlist?list=PLJ8cMiYb3G5ce8J4P5j5qOEtYR94Z3DQs

Sources and further reading:

“The extermination of the American bison,” 1887 Smithsonian survey by William T. Hornaday:
https://repository.si.edu/handle/10088/29938

“Poaching Pictures,” by Alan Braddock:
https://www.jstor.org/stable/10.1086/649775?refreqid=excelsior%3A36683dbe1bb52d31972b1b4b4ca591cf&seq=1#metadata_info_tab_contents

“The frontier army and the destruction of the buffalo,” by David T. Smits:
https://studylib.net/doc/8185838/the-frontier-army-and-the-destruction-of-the-buffalo

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A Better Way to Do Nuclear Energy?

This episode is sponsored by Wren, a website where you calculate your carbon footprint. Sign up to make a monthly contribution to offset your carbon footprint or support rainforest protection projects: https://www.wren.co/join/scishow

Nuclear energy has a bit of a bad rap, but there’s an element out there that might make them safer and more efficient.

Hosted by: Rose Bear Don’t Walk

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Sources:

Sources:
https://www.world-nuclear.org/information-library/current-and-future-generation/thorium.aspx
https://www.world-nuclear.org/information-library/current-and-future-generation/molten-salt-reactors.aspx
https://www.theguardian.com/environment/2011/jun/23/thorium-nuclear-uranium
https://www.wired.com/story/andrew-yang-wants-a-thorium-reactor-by-2027-good-luck-buddy/

LFTR Overview


https://www.forbes.com/sites/energysource/2012/02/16/the-thing-about-thorium-why-the-better-nuclear-fuel-may-not-get-a-chance/?sh=4fe006591d80
https://www.sciencedirect.com/science/article/pii/S1364032118305951
https://www.popularmechanics.com/science/energy/a11907/is-the-superfuel-thorium-riskier-than-we-thought-14821644/
https://energy.mit.edu/wp-content/uploads/2011/04/MITEI-The-Future-of-the-Nuclear-Fuel-Cycle.pdf
https://www.nrc.gov/docs/ML0906/ML090630275.pdf
https://www.edfenergy.com/energy/nuclear-new-build-projects/hinkley-point-c/about/reactor
https://spectrum.ieee.org/energy/nuclear/nuclear-reactor-renaissance
https://www-pub.iaea.org/MTCD/publications/PDF/TE_1450_web.pdf
https://www.world-nuclear.org/information-library/current-and-future-generation/molten-salt-reactors.aspx
https://www.britannica.com/technology/breeder-reactor
https://www.britannica.com/technology/fissile-material
https://www.theguardian.com/us-news/2021/jun/03/bill-gates-warren-buffett-new-nuclear-reactor-wyoming-natrium
https://www.ucsusa.org/resources/advanced-isnt-always-better#read-online-content
https://www.ucsusa.org/sites/default/files/2021-05/ucs-rpt-AR-3.21-web_Mayrev.pdf

IMAGES

https://en.wikipedia.org/wiki/Molten-Salt_Reactor_Experiment#/media/File:MoltenSaltReactor.jpg
https://en.wikipedia.org/wiki/Molten_salt_reactor#/media/File:Molten_Salt_Reactor.svg


https://commons.wikimedia.org/wiki/File:NTS_-_Low-level_radioactive_waste_storage_pit.jpg
https://www.istockphoto.com/photo/periodic-table-thorium-gm466937217-34268288
https://www.istockphoto.com/photo/nuclear-fission-of-uranium-gm481061477-36774966
https://www.istockphoto.com/photo/nuclear-power-station-with-steaming-cooling-towers-and-canola-field-gm165773720-16584253
https://www.istockphoto.com/photo/tihange-nuclear-power-station-gm909474696-250499155

Wild horses: a world of death threats, bureaucracy, and controversy | Anna Coburn | TEDxMileHigh

It’s the biggest debate you’ve never heard about: wild horse management. Are they treasured American mascots and symbols of our rugged pioneer past? Or are they nuisance animals that gobble up natural resources and degrade the landscape? In this hilarious & heartwarming talk, “Wildish” Producer Anna Coburn wonders how we should navigate our messy, polarized world — and how to repair the relationships that we’ve lost along the way. Anna Coburn is the producter and host of High Country News’ podcast series “Wildish.” When she’s not producing podcasts, Anna earns money cleaning houses she cannot afford, playing guitar over cocktails she cannot afford, and selling tourists ski passes, which she can also not afford. Still, it’s worth it to fulfill a promise she made to herself at 12 years old: to play in the snow in the mountains of Colorado. Born and raised in Alabama, Anna carefully navigated the South as both religious and closeted. Now, she lives in Gunnison with her deadbeat roommate, a cat named Tombigbee. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx

How To Survive Poison

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It’s not just how much you take in; it’s how fast your body can purge it.

LEARN MORE
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To learn more about this topic, start your googling with these keywords:
Poison: A substance that is capable of causing illness or death when introduced or absorbed.
Overdose: A dangerously large dose of a substance.
Biotransformation: The process by which foreign chemicals are transformed by the body into less toxic substances.
Polydipsia: The medical term for feelings of extreme thirst that can lead to hyponatremia.
Hyponatremia: Abnormally low sodium in the blood often caused by excessive water consumption.
Lethal Concentration – The concentration a substance needs to be in the bloodstream to kill 50% of subjects.
Metabolism – the chemical processes that occur within a living organism in order to maintain life.
Toxicity – the quality of being toxic or poisonous.
Excretion – the process of eliminating or expelling waste matter.

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Cameron Duke (@dukeofcam) | Script Writer
David Goldenberg (@dgoldenberg) | Narrator and Director
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Nathaniel Schroeder | Music

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REFERENCES
**************
ATSDR. (2006). Toxicological Profile for Cyanide. https://www.atsdr.cdc.gov/toxprofiles/tp8-c3.pdf

Cyanide Fact. (2013). Johns Hopkins Center for Health Security. https://www.centerforhealthsecurity.org/our-work/publications/cyanide-fact-sheet

Lead (Pb) Toxicity: What is the Biological Fate of Lead in the Body? | Environmental Medicine | ATSDR. (2021, February 9). Cdc.gov. https://www.atsdr.cdc.gov/csem/leadtoxicity/biologic_fate.html

Lethal Doses of Water, Caffeine and Alcohol. (2014, July 27). Compound Interest. https://www.compoundchem.com/2014/07/27/lethaldoses/

Radcliffe, S. (2017, May 25). How You Can Die From a Caffeine Overdose. Healthline; Healthline Media. https://www.healthline.com/health-news/how-you-can-die-from-caffeine#Caffeine-overdose-is-rare

Shalat, S. (2016, February 4). Toxic lead can stay in the body for years after exposure. The Conversation. https://theconversation.com/toxic-lead-can-stay-in-the-body-for-years-after-exposure-53607

Shenvi, C. (2016, February 16). Hydroxocobalamin: Turning Cyanide into Vitamin B12 | Emergency Physicians Monthly. Emergency Physicians Monthly | EPM. https://epmonthly.com/article/hydroxocobalamin-turning-cyanide-into-vitamin-b12/

Iceland’s superpowered underground volcanoes – Jean-Baptiste P. Koehl

Explore how geothermal energy— the heat in the Earth’s crust— is being used to create renewable electricity and power.

While the weather in Iceland is often cold, wet, and windy, a nearly endless supply of heat bubbles away below the surface. In fact, almost every building in the country is heated by geothermal energy in a process with virtually no carbon emissions. So how exactly does this renewable energy work? Jean-Baptiste P. Koehl explores the two primary models for harnessing the planet’s natural heat.

Lesson by Jean-Baptiste P. Koehl, directed by Charlotte Arene.

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Gai Waak: Made in Belfast. Made with Purpose. | Eileen Chan Hu | TEDxStormontStudio

Eileen Chan-Hu in her talk explores the concept Gai Waak (plan and purpose). She shares her diverse perspective of living and growing up as a second generation Chinese in Northern Ireland, making a plan and discovering purpose in life. Eileen is CEO and founder of CRAICNI, an award-winning training and educational social enterprise company which prides itself in investing in diverse trainers to promote diversity. Eileen was the former CEO of Chinese Welfare Association has sat on various Boards including NICVA and the BME subgroup. She was awarded the Chinese Overseas Award in Guangzhou representing UK in 2018 for her work with the Chinese community diaspora in NI. Eileen set up the first International Organisation for Migration NI branch and today continues consultancy in labour exploitation with Robin Brierley Associates. Currently Eileen is a Trustee of New Europeans, Vice Chair of the Migrant and Minority Ethnic Council NI and on the Centenary Forum, Northern Ireland Office. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx

Why we’re more honest with machines than people | Anne Scherer

Visit http://TED.com to get our entire library of TED Talks, transcripts, translations, personalized talk recommendations and more.

For a genuine conversation, consider talking to a robot; the less humanized, the better. Consumer researcher Anne Scherer shares her findings on why some machines get us to open up better than actual people, revealing fascinating insights about human nature that could lead to more honest interactions in our day-to-day lives.

The TED Talks channel features the best talks and performances from the TED Conference, where the world’s leading thinkers and doers give the talk of their lives in 18 minutes (or less). Look for talks on Technology, Entertainment and Design — plus science, business, global issues, the arts and more. You’re welcome to link to or embed these videos, forward them to others and share these ideas with people you know.

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There is no wrong way to be a woman | Anna Rosenwasser | TEDxFHNW

How can you truly be yourself and feel comfortable in your skin? In her TEDx Talk, Anna elucidates on why there is no wrong way to be a woman and brings attention to life and love in the context of gender and sexual identity.

The writer and gender activist Anna Rosenwasser is a feminist voice in the fight for equality in Switzerland. Until recently, she was co-director of Switzerland’s Lesbian Organisation. In her writing as well as on social media she discusses questions about contemporary life and love in the context of gender and sexual identity. The writer and gender activist Anna Rosenwasser is a feminist voice in the fight for equality in Switzerland. Until recently, she was co-director of Switzerland’s Lesbian Organisation. In her writing as well as on social media she discusses questions about contemporary life and love in the context of gender and sexual identity. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx

5 Robots You Can Hug

Developers are working to make softer, squishier robots that are flexible enough to maneuver in extreme environments, including inside the human body!

Hosted by: Hank Green

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Sources:
https://spectrum.ieee.org/video/robotics/robotics-hardware/octopusinspired-robots-can-grasp-crawl-and-swim
https://spectrum.ieee.org/robotics/robotics-hardware/robot-octopus-points-the-way-to-soft-robotics-with-eight-wiggly-arms
https://www.nature.com/articles/nature19100
https://www.npr.org/sections/thetwo-way/2016/08/24/491224545/watch-squishy-octobot-moves-autonomously
https://oceanservice.noaa.gov/facts/oceandepth.html
https://www.noaa.gov/media-release/seven-miles-deep-ocean-is-still-noisy-place

FAQs


https://www.nature.com/articles/s41586-020-03153-z
https://www.nature.com/articles/d41586-021-00489-y
https://pratt.duke.edu/about/news/drabot
https://www.advancedsciencenews.com/drabot-a-soft-robotic-dragon-fly-that-senses-and-monitors-its-environment/
https://onlinelibrary.wiley.com/doi/10.1002/aisy.202100005
https://www.army.mil/article/209048/armys_new_3_d_printed_shape_shifting_soft_robots_crawl_jump_grab
https://www.digitalengineering247.com/article/mit-prints-shape-shifting-soft-bots/
https://www.nature.com/articles/s41586-018-0185-0

US Army soft robots can squeeze into tight spaces


https://www.pnas.org/content/pnas/early/2011/11/21/1116564108.full.pdf
https://www.acs.org/content/acs/en/molecule-of-the-week/archive/p/polydimethylsiloxane.html
https://spectrum.ieee.org/automaton/robotics/military-robots/freaky-boneless-robot-walks-on-soft-legs
https://www.cnet.com/news/nasa-eyes-soft-robots-for-dirty-jobs-on-the-moon-and-mars/
https://www.space.com/soft-robots-could-crawl-on-the-moon.html
https://www.frontiersin.org/articles/10.3389/frobt.2018.00084/full

Images:
https://www.eurekalert.org/news-releases/696224
https://www.istockphoto.com/photo/common-octopus-gm495907882-78259021
https://www.istockphoto.com/photo/octopus-gm933906804-255776261
https://www.mdpi.com/2076-0825/3/3/226
https://spectrum.ieee.org/video/robotics/robotics-hardware/octopusinspired-robots-can-grasp-crawl-and-swim
https://www.eurekalert.org/news-releases/547034
https://commons.wikimedia.org/wiki/File:Marianatrenchmap.png
https://commons.wikimedia.org/wiki/File:Limiting_Factor_floating_on_the_water_surface.jpg
https://commons.wikimedia.org/wiki/File:Syntacticfoam.JPG
https://www.nature.com/articles/d41586-021-00489-y
https://commons.wikimedia.org/wiki/File:Pseudoliparis_swirei.png
https://www.istockphoto.com/photo/underwater-rov-gm1204436861-346562362
https://www.istockphoto.com/photo/turtle-with-a-dragonfly-about-to-land-on-his-head-gm1217513116-355416201
https://www.istockphoto.com/photo/water-texture-gm146894620-13892448
https://www.eurekalert.org/news-releases/839978
https://www.istockphoto.com/photo/dragonfly-and-transparent-wings-on-branch-gm1193534862-339525725
https://www.digitalengineering247.com/article/mit-prints-shape-shifting-soft-bots/
https://www.istockphoto.com/photo/veins-gm184333047-17340474
https://www.pnas.org/content/early/2011/11/21/1116564108
https://www.nasa.gov/feature/langley/beyond-the-metal-investigating-soft-robots-at-nasa-langley
https://www.istockphoto.com/photo/great-day-on-mars-gm1167009385-321690073

Usare i Social per fare la differenza | Marta De Vivo | TEDxMestreSalon

In questo appassionato talk, la giovane veneziana Marta De Vivo ci presenta la forza della sua generazione, la “Gen Z”: nata in un periodo delicato e che sta lottando attraverso i social network per affermarsi e portare nel mondo un cambiamento necessario. La velocità e la fruibilità dei social ha permesso la nascita di un nuovo “attivismo digitale” attraverso il quale ognuno di noi può e deve fare la differenza. Ho 20 anni e sono veneziana, sono bilingue inglese e studio presso una Scuola Internazionale Europea. Gestisco @martaforfew su Instagram, nel quale racconto la mia visione del mondo e le tematiche che mi stanno più a cuore e delle quali ritengo di vitale importanza la conoscenza e l’approfondimento. Scrivo per l’Huffington Post e Il Fatto Quotidiano. Ho due associazioni : una studentesca “Studente In Movimento” con la quale operiamo per cambiare il sistema scolastico e un’altra culturale “Be Dream Academy” che si pone l’obiettivo di promuovere le community giovanili e aiutarle a trovare potenziali partners per sviluppare i loro progetti. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx

10 Mysterious Examples of the Mandela Effect

Does the Monopoly man have a monocle? Or is your memory playing tricks on you?

In this episode of The List Show, host Justin Dodd (@juddtoday) tackles this mysterious memory phenomenon known as the Mandela Effect. From Jiffy peanut butter to the classic 90s genie-comedy Shazaam, we’re exploring shared false memories. How many did you “remember”?

In case you forgot, The List Show is a trivia-tastic, fact-filled show for curious people. Subscribe here for new Mental Floss episodes every Wednesday: https://www.youtube.com/channel/UCpZ5…

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The emotions behind your money habits | Robert A. Belle

Visit http://TED.com to get our entire library of TED Talks, transcripts, translations, personalized talk recommendations and more.

Your money habits reveal a lot about you: your hopes, fears, dreams and other deep personal truths you may not even be aware of, says accountant Robert A. Belle. He shares how taking stock of your transaction history can unlock surprisingly valuable insights about what drives you to spend (and save) — and provides practical tips on how to perform an “emotional audit” of your expenses.

The TED Talks channel features the best talks and performances from the TED Conference, where the world’s leading thinkers and doers give the talk of their lives in 18 minutes (or less). Look for talks on Technology, Entertainment and Design — plus science, business, global issues, the arts and more. You’re welcome to link to or embed these videos, forward them to others and share these ideas with people you know.

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How should doctors consider race?

Race is not genetic. It’s a concept most of us are familiar with, and yet, we haven’t really questioned why race plays a crucial role in medicine and scientific research. It’s one of the first things your doctor asks when filling out your charts, it can determine what your insurance will cover, and we paid special attention to how Covid-19 spread in BIPOC communities. But more and more, doctors are beginning to question whether a patient’s race should be considered when providing care, and if it’s eliminated from the equation, what should be included instead. Glad You Asked host Lee Adams wants to know: What role should race play in medicine?

Is city noise making us sick?

Close your eyes and open your ears. What do you hear? Do the sounds you hear bother you? And, more importantly, do you have control over those sounds? As more and more the population migrates to urban environments – the urban population of the world has quadrupled since 1960. In fact, unwanted noise has become an increasingly critical problem. Join Glad You Asked host Joss Fong as she explores how noise pollution is becoming an ever greater concern for our health, how the negative effects of noise are unequally distributed, and how we can learn to find peace.

Why can’t we sleep?

Most of us aren’t getting enough sleep. But whether you struggle to fall and stay asleep or because you decide sleep is the first thing you can cut out to make time for other things, we all underestimate the power of a good night’s rest. Glad You Asked host Christophe Haubursin wants to know why we aren’t sleeping well, what impact too little sleep has on your body and how we can get enough shuteye.

Do I Want Kids?

Glad You Asked host Cleo Abram is pretty sure she wants kids, but doesn’t feel like she has enough information to truly understand the impact of that decision. She’s not alone – even though the majority of American women do decide to have children, the number of births in the United States has been creeping downward, and women are having kids later and later in life. But while no one but you can answer if you want to have kids, join Cleo as she gathers more data and perspective on what it means to be a parent.

Boeing’s Historic Starliner Capsule Is Heading Back to the ISS

On July 30, 2021, Boeing’s Starliner Crew Capsule is scheduled to launch to the ISS. If all goes well, this uncrewed mission will pave the way for crewed missions later this year…and prove that Boeing and NASA have what it takes to reinvent commercial human spaceflight.

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Boeing is in a unique position. It’s one of the most well-established aviation companies in the biz, and also one of a number of private companies vying to be a leader in commercial spaceflight.

In 2014, the company was awarded a massive contract by NASA to send crewed flight missions up to the ISS. But it wasn’t the only one— right around the same time, SpaceX got a similar contract from NASA…and they hit the ground RUNNING.

On May 30, 2020, SpaceX became the first ever private company to send a crew to the ISS. It also marked the first time that astronauts had launched into space from US soil since NASA ended its Space Shuttle program in 2011.

Starliner will ride atop the Atlas V rocket. Its main engine delivers nearly 4 mega-Newtons of thrust at sea level…and each of its two boosters deliver roughly 1.5 mega-Newtons of thrust at liftoff.

Unlike SpaceX’s crew capsule, which lands in the water, Boeing’s Starliner is designed to land on solid ground using a series of parachutes and airbags.

#NASA #space #ISS #Boeing #SpaceX #seeker #science #countdowntolaunch

Read More:

Boeing’s Starliner spacecraft just met its rocket for NASA test launch July 30
https://www.space.com/boeing-starliner-gets-atlas-v-rocket-oft-2-launch
“The mission, called Orbital Flight Test 2 (OFT-2), will be Boeing’s second attempt at launching its new astronaut taxi to the International Space Station. The CST-100 Starliner spacecraft was stacked atop its United Launch Alliance Atlas V rocket on July 17 at Florida’s Cape Canaveral Space Force Station, marking a key milestone ahead of the mission’s launch next week.”

Boeing’s Starliner System Completes Full Space Station Mission Simulation
https://www.nasa.gov/feature/boeing-s-starliner-system-completes-full-space-station-mission-simulation
“Gearing up for the program’s first AMR took several months of preparation configuring hardware and software, routing communications channels, mapping simulated sensor data, verifying flight procedures, and completing weeks of dry runs.”

Boeing’s spacecraft test failure points to broader problems
https://qz.com/1799365/how-boeings-starliner-test-failed/
“This week, a NASA safety panel revealed a second software error that could have led to erroneous thruster firings “with the potential for a catastrophic spacecraft failure,” a member of the panel said. Boeing also had difficulty maintaining a communication link between the spacecraft in orbit and ground control, which made operating the autonomous vehicle more difficult.”

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7 dimensions of depression, explained | Daniel Goleman, Pete Holmes & more | Big Think

7 dimensions of depression, explained
Watch the newest video from Big Think: https://bigth.ink/NewVideo
Learn skills from the world’s top minds at Big Think Edge: https://bigth.ink/Edge
———————————————————————————-
According to the World Health Organization, more than 264 million people suffer from depression. It is the leading cause of disability and, at its worst, can lead to suicide. Unfortunately, depression is often misunderstood or ignored until it is too late.

Psychologist Daniel Goleman, comedian Pete Holmes, neuroscientist Emeran Mayer, psychiatrist Drew Ramsey, and more outline several of the social, chemical, and neurological factors that may contribute to the complex disorder and explain why there is not a singular solution or universal “cure” that can alleviate the symptoms.

From gaining insight into how the brain-gut connection works and adopting a more Mediterranean diet, to seeking help from medical or spiritual practitioners, depression is a personal battle that requires a personalized strategy to keep it at bay, as well as more research and understanding.

Check Drew Ramsey’s book “Eat to Beat Depression and Anxiety: Nourish Your Way to Better Mental Health in Six Weeks” at https://amzn.to/3b1jtuU
———————————————————————————-
TRANSCRIPT:

JOHANN HARI: When I feel depressed, like loads of people, I say I feel down, right? And as I was learning about the causes of depression and anxiety for my book, “Lost Connections,” I started to realize, I don’t think that’s a metaphor. There is this amazing Professor at Stanford called Robert Sapolsky who in his early ’20s went to live with a troop baboons in Kenya. And it was his job to figure out when are baboons most stressed out. So his job was to hit them with little tranquilizer darts and then take a blood test and measure something called cortisol, which is a hormone that baboons and us release when we’re stressed. And baboons live in this hierarchy, so the females don’t interestingly but the men live in a very strict hierarchy. So if there’s 30 men, number one knows he’s above number two, number two knows he’s above number three, number 12 knows he’s above number 13. And that really determines a lot. It determines who you get to have sex with, it determines what you get to eat, it determines whether you get to sit in the shade or you’re pushed out into the heat. Yeah, it’s a really, really significant where you are in the hierarchy.

And what Professor Sapolsky found is baboons are most stressed in two situations. One is when their status is insecure. So if you’re the top guy and someone’s circling which comes for you, you will be massively stressed. And the other situation is when you feel you’re at the bottom of a hierarchy, you’ve been kind of humiliated. And what Professor Sapolsky found is when you feel you’ve been pushed to the bottom, what you do is you show something called submission gesture. Baboon will put its body down physically or put its head down, it will put its bottom in the air and it will cover its head. So it clearly seems to be communicating, “Just leave me alone, you’ve beaten me. Okay, you’ve beaten me.” And what lots of scientists, people like Professor Paul Gilbert in Britain and Professor Kate Pickett and Professor Richard Wilkinson also in Britain have really developed is this idea that actually what human depression is in part, not entirely, but in part, is a form of a submission gesture. It’s a way of saying, I can’t cope with this anymore, right? Particularly people who feel they’ve been pushed to the bottom of hierarchies or who feel remember the other stressful situations when you feel your status is insecure it’s a way of just going, “Okay, can I retreat?” “I don’t want this fight anymore.” “You’ve beaten me.” It’s a kind of very strong evolutionary impulse where you feel you’re under attack to just submit in the hope that the stress and anxiety will then go away. The sources of the stress and anxiety will then go away.

And one thing that is so important, Kate Pickett and Richard Wilkinson really developed this, is they’ve shown so as inequality grows, depression and anxiety grow. They’ve shown, this is very robust effect, right? This helps us to explain it. One in five Americans will take a psychiatric drug, one in four middle-aged women in the United States is taking a chemical antidepressant in any given year. And I began to think, could it really be that just so many people are just mysteriously lacking a specific chemical in their brain? Why does it seem to be rising so much if that’s the cause? If you live in Norway, your status is relatively secure, right? No one’s that high, no one’s that low, movement between where you are is not so extreme. If you live in the United States, especially today which is…

Read the full transcript at https://bigthink.com/Northwell-Health/leadership-influence

A test question that stumped many students!

A version of this problem was asked in India. Can you figure it out?

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The ElseSpace… a talk for anyone who has ever felt unwell | Maria Guarino | TEDxAmherst

Humans are uncomfortable with illness and disability. Maria Guarino has introduced a space for us to explore our illnesses and disabilities called the ElseSpace. This is a space where binaries like “well” and “unwell” do not exist and a place where it is okay to not be okay. Maria is a teacher and advisor at the Center for New Americans in Northampton, MA. She holds a masters in Hispanic Literature and graduate certificates in Advanced Feminist Studies and Film Studies. Last year, she exhibited a collaborative video essay created with local artists and friends exploring her ElseSpace at the Anchor House Gallery in Northampton, which is now forthcoming in Disability Studies Quarterly. Maria is particularly interested in the differences and intersections in spaces, and the intervention of the visual- what distinct conversations does a gallery space foster about disability vs. an academic one? Can we utilize images and videos of the body in distress as corporeal interventions, or do they stop at the line of grotesque, shocking, and ultimately counterproductive to a disabled narrative? This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx

These Baby Shrimp Really Pack a Punch!

This episode is sponsored by Terra Mater, a Youtube channel for anyone interested in nature and exploring more of our planet. Head to their channel to watch some jaw-dropping wildlife footage!
https://www.youtube.com/c/TerraMaterOfficial?sub_confirmation=1

Many species of mantis shrimp rely on their incredible punching abilities to stun their prey. But it turns out they don’t have to be mature mantis shrimp to start getting their punch on. And baby Philippine mantis shrimp can punch nearly as quickly as the adults!

Hosted by: Michael Aranda

SciShow has a spinoff podcast! It’s called SciShow Tangents. Check it out at http://www.scishowtangents.org
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Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow
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Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever:

Chris Peters, Matt Curls, Kevin Bealer, Jeffrey Mckishen, Jacob, Christopher R Boucher, Nazara, charles george, Christoph Schwanke, Ash, Silas Emrys, KatieMarie Magnone, Eric Jensen, Adam Brainard, Piya Shedden, Alex Hackman, James Knight, GrowingViolet, Drew Hart, Sam Lutfi, Alisa Sherbow, Jason A Saslow

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Sources:
https://www.cell.com/iscience/pdf/S2589-0042(18)30134-2.pdf
https://journals.biologists.com/jeb/article-lookup/224/8/jeb235465
https://ed.ted.com/best_of_web/qXJQauax
https://www.nationalgeographic.com/science/article/the-mantis-shrimp-has-the-worlds-fastest-punch
https://www.newscientist.com/article/2182882-mantis-shrimps-punch-with-the-force-of-a-bullet-and-now-we-know-how/
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-64972016000100216
https://www.eurekalert.org/pub_releases/2021-04/du-bms042921.php

Mantis Shrimp Larvae Pack an Explosive Punch Just Like Ma and Pa – “We Were Amazed!”

Images:
https://www.istockphoto.com/photo/mantis-shrimp-close-up-sipadan-island-celebes-sea-malaysia-gm642161564-116427909
https://www.eurekalert.org/multimedia/pub/263545.php
https://www.eurekalert.org/multimedia/pub/182949.php?from=408662
https://www.storyblocks.com/video/stock/studio-shot-with-pan-of-determined-sportswoman-and-sportsman-with-bows-aiming-and-shooting-arrows-against-black-background-hlecsf7q7jjh6pv8v
https://www.scielo.br/j/nau/a/TChXkMq5VTT9CY5tWCNw53f/?lang=en#
https://www.eurekalert.org/multimedia/pub/263546.php?from=501392
https://www.flickr.com/photos/37707866@N00/2276197031
https://www.eurekalert.org/multimedia/pub/263547.php?from=501392

Venom spurs, duck bills and spiky penises: A year in the life a platypus – Gilad Bino

Trace a year in the life of a platypus, and explore how the animal’s unique adaptations ensure its survival.

Waddling along the parched Australian earth, a female platypus is searching for fresh water. Over the past year, a severe drought turned rivers and streams to mere trickles. She barely survived and was unable to reproduce. Could the next year bring a change in luck? Gilad Bino traces a year in the life of a platypus, and explores the unique adaptations that ensure this ancient species’ survival.

Lesson by Gilad Bino, directed by Petya Zlateva, Compote Collective.

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View full lesson: https://ed.ted.com/lessons/venom-spurs-duck-bills-and-spiky-penises-a-year-in-the-life-a-platypus-gilad-bino
Dig deeper with additional resources: https://ed.ted.com/lessons/venom-spurs-duck-bills-and-spiky-penises-a-year-in-the-life-a-platypus-gilad-bino#digdeeper

Animator’s website: https://vimeo.com/user2624511
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New leadership secrets | Erica Dhawan | TEDxBeaconStreet

Technology has made us the “most connected” society… but how do you make the right connections to get ahead? Move beyond smart networking to a deeper wisdom and learn the secrets of a new wave of leaders: how to connect creatively with the most important people you need to know. Find out how to make the connections that could change your career and even your life, in the most unexpected ways.

Erica Dhawan is the co-author of Get Big Things Done: The Power of Connectional Intelligence. She is a researcher, strategist and keynote speaker on the new world of work and advises clients such as Google, Deloitte, Fidelity and the United Nations.

This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at http://ted.com/tedx

Tips for reclaiming your peace of mind online | Naomi Shimada

Visit http://TED.com to get our entire library of TED Talks, transcripts, translations, personalized talk recommendations and more.

To post or not to post? The real question is: How do you feel about it? Author Naomi Shimada reflects on the anxiety-inducing aspects of social media, sharing advice on how to step back from the shame, optics and echo chambers of the internet and untangle your self-worth from follower counts, likes and the unattainable perfectionism perpetuated online. (This conversation, hosted by TED curator Cloe Shasha Brooks, is part of TED’s “How to Deal with Difficult Feelings” series.)

The TED Talks channel features the best talks and performances from the TED Conference, where the world’s leading thinkers and doers give the talk of their lives in 18 minutes (or less). Look for talks on Technology, Entertainment and Design — plus science, business, global issues, the arts and more. You’re welcome to link to or embed these videos, forward them to others and share these ideas with people you know.

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Talking Politics: From the Dinner Table to the NYC Train | Triniti Krauss | TEDxDesMoines

Healthy political discussions. Triniti Krauss is a student at Simpson College in Indianola, Iowa, where she is in an honors program studying Global Management and Political Science with a minor in Spanish. Triniti is from Fruita, Colorado, and she is an awardee of the Culver Fellows Program at Simpson College which is for political science majors and includes a partial scholarship and public service opportunities. In the start of 2020 and until that June, during the pandemic, Triniti studied at the University of Murcia in Spain as part of a study abroad program. Triniti is a member of Simpson College’s speech and debate program. She has enjoyed working as a debate coach at Valley High School in West Des Moines and BL Debate Academy in Vancouver, Canada, as well as a judge at many debate tournaments. Triniti enjoys opportunities to engage in political participation and bipartisan conversation. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx

Michaela Jaé on Real Representation in Storytelling [Advertiser content from Google]

Although Michaela Jaé felt out of place growing up, she never let it dim her light. Without much media representation of trans people, Michaela Jaé looked to classic stories like Cinderella and found parallels to how she wanted to live her own life. This led her to creating her own characters, like Pose’s Blanca Evangelista, to represent identities she never knew when growing up. Her advice to the next generation is the same: if you don’t see stories that represent your identity—write your own.

Watch episodes of The Adulthood—an animated series about finding your way in the modern world: https://www.google.com/chromebook/the-adulthood/

Crocodile Tears Are Real (And Could Help Cure Dry Eyes)

You may have thought that crocodile tears were just a figure of speech, but it turns out they’re real, and may help those of us with dry eyes.

Hosted by: Hank Green

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Sources:
https://academic.oup.com/bioscience/article/57/7/615/238586?login=true
https://www.sciencedaily.com/releases/2007/10/071003151131.htm
https://www.sciencedirect.com/science/article/abs/pii/S1542012412703075
https://www.healthline.com/health/how-many-times-do-you-blink-a-day#blinking-frequency
https://www.nationalgeographic.co.uk/animals/2020/08/crocodile-tears-are-surprisingly-similar-to-our-own
https://www.frontiersin.org/articles/10.3389/fvets.2020.00283/full
https://www.frontiersin.org/articles/10.3389/fvets.2020.00574/full

https://commons.wikimedia.org/wiki/File:Paleosuchus_trigonatus.jpg
https://www.storyblocks.com/video/stock/ecu-woman-blinking-view-of-eyes-suxigk1egiwpr0wur
https://www.eurekalert.org/multimedia/pub/239454.php?from=473005
https://commons.wikimedia.org/wiki/File:AmericanAlligator.JPG
https://commons.wikimedia.org/wiki/File:Mugger_crocodile_2.JPG
https://www.istockphoto.com/photo/pouting-crying-businessman-brat-wiping-his-crybaby-tears-gm170223880-17652600

I tried to film a volcano and it was a complete disaster

Iceland has a new volcano, Fagradalsfjall: I wanted to visit, to talk about the infrastructure around it, and work out how the country deals with a new and dangerous tourist attraction. It didn’t go well.

Thanks to Bjorn Steinbekk, who I thoroughly recommend if you need a fixer or drone pilot in Iceland! https://www.steinbekk.com/ He’s also the person who flew a drone into the lava: https://www.youtube.com/watch?v=HmGKL19W_UM

The quote is from Sam Hughes’ Ra, which is free online. I thoroughly recommend it: https://qntm.org/ra

Filmed safely: https://www.tomscott.com/safe/

I’m at https://tomscott.com
on Twitter at https://twitter.com/tomscott
on Facebook at https://facebook.com/tomscott
and on Instagram as tomscottgo

Why COP26 is our best chance for a greener future | Alok Sharma

Take action on climate change at http://countdown.ted.com.

Something powerful is happening around the world. The issue of climate change has moved from the margins to the mainstream, says Alok Sharma, the President-Designate of COP26, the United Nations climate conference set to take place in November 2021 in Glasgow, Scotland. He unpacks what this shift means for the world economy and the accelerating “green industrial revolution” — and lays out the urgent actions that need to happen in order to limit global temperature rise.

The TED Talks channel features the best talks and performances from the TED Conference, where the world’s leading thinkers and doers give the talk of their lives in 18 minutes (or less). Look for talks on Technology, Entertainment and Design — plus science, business, global issues, the arts and more. You’re welcome to link to or embed these videos, forward them to others and share these ideas with people you know.

Become a TED Member: http://ted.com/membership
Follow TED on Twitter: http://twitter.com/TEDTalks
Like TED on Facebook: http://facebook.com/TED
Subscribe to our channel: http://youtube.com/TED

TED’s videos may be used for non-commercial purposes under a Creative Commons License, Attribution–Non Commercial–No Derivatives (or the CC BY – NC – ND 4.0 International) and in accordance with our TED Talks Usage Policy (https://www.ted.com/about/our-organization/our-policies-terms/ted-talks-usage-policy). For more information on using TED for commercial purposes (e.g. employee learning, in a film or online course), please submit a Media Request at https://media-requests.ted.com

Why the 400m hurdles is one of the hardest Olympic races

Running the 400-meter hurdles requires strategic rhythm, but it’s over so fast you just might miss it.

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There are few single events that demand as much skill as the 400-meter hurdle race. Olympians need to have the speed of a 200-meter dash runner, the endurance of an 800-meter runner, an understanding of rhythm, and, of course, the ability to efficiently clear a hurdle.

Various techniques can make or break a race. If you jump too high, you’re wasting time and energy; too low and you collide with a hurdle. Even if your technique over the hurdles is perfect, you can’t win if you don’t have the speed. Former Olympic hurdler and (until very recently) world record-holder Kevin Young helps us break down the rhythm of the 400-meter hurdles.

Correction: Karsten Warholm broke Kevin Young’s record at a Diamond League meet in Oslo, Norway on July 1 — not at the Olympic Trials.

For more:

The Hurdle Blog


https://trackstarusa.com/
https://www.runnersworld.com/
https://www.britannica.com/sports/hurdling
https://www.nbcolympics.com/news/track-field-101-rules

McLaughlin + Warholm’s record-breaking races:

Karsten Warholm breaks 400m hurdles world record

Sydney McLaughlin breaks world record in 400m hurdles at Olympic Trials

Studies:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3005844/
https://pubmed.ncbi.nlm.nih.gov/20703164/

Vox.com is a news website that helps you cut through the noise and understand what’s really driving the events in the headlines. Check out http://www.vox.com.

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Clearing your path to Adventure | Paul Watkins | TEDxWarrnambool

We are the stories we tell and Paul Watkins has quite the story too share with the world as well as offering insight how you don’t need to be a superhero to do the heroic. Paul Watkins is probably best described as a cross between Harry Potter and Bear Grylls. Starting out as a local pharmacist, he has spent time as a builder, property developer, entrepreneur, public speaker and trail runner. He has climbed, trekked and adventured in Tanzania, Argentina, Alaska, the Arctic, Antarctica, New Zealand, Papua New Guinea, India, Jordan and Nepal to name a few. He has also managed to race in some of Australia and the world’s toughest ultra-marathons – including being one of only six people to ever finish and win the 614km 6633 Arctic Ultra. His training for these expeditions also led him to become an avid student of the nuanced art of endurance training and a regular speaker on the topics of mental toughness, emotional resilience and personal discipline. Paul describes himself as the only forklift driving, ultra-racing Pharmacist who has an MBA but is also handy with an ice-axe. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx

Earwax, Butt Hair, and Other Weird Human Attributes

You can probably tell someone the purpose of most of your body parts. But what about earwax? Or your appendix? If you’re looking for those answers, or wondering why you have a butt, pop a squat to find out about weird human attributes.

Hosted by: Hank Green

SciShow has a spinoff podcast! It’s called SciShow Tangents. Check it out at http://www.scishowtangents.org
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Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow
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Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever:

Chris Peters, Matt Curls, Kevin Bealer, Jeffrey Mckishen, Jacob, Christopher R Boucher, Nazara, charles george, Christoph Schwanke, Ash, Silas Emrys, KatieMarie Magnone, Eric Jensen, Adam Brainard, Piya Shedden, Alex Hackman, James Knight, GrowingViolet, Drew Hart, Sam Lutfi, Alisa Sherbow, Jason A Saslow

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Original Episodes:
Why Do We Have Earwax? – https://www.youtube.com/watch?v=yyYCw-_Y-Q0
Why Do We Have Baby Teeth? – https://www.youtube.com/watch?v=4wFlmOMFOaU
Why Do We Have Such Crooked Teeth – https://www.youtube.com/watch?v=FWds-tGnHlI
Your Appendix Isn’t Useless After All – https://youtu.be/J03A8BQCQC4
Why do we have Butts – https://youtu.be/1aVEbGjYgfA
Why Do We Have Butt Hair – https://www.youtube.com/watch?v=BgsdhmLrLPA
Vestigial Structures – https://youtu.be/OAfw3akpRe8