Solve if you are a “genius” – incredible hexagon puzzle!

Thanks to Elliott Line for the suggestion! Elliott is the editor of a bimonthly puzzle magazine, Enigma, available exclusively to members of Mensa (a high IQ society). Check out his website for many more great puzzles: http://www.elliottline.com/puzzles

General solution method on Math StackExchange
https://math.stackexchange.com/questions/2336865/area-of-a-hexagon-from-the-distances-of-the-opposite-sides

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Why Doesn’t All Thunder Sound The Same?

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We’ve all experienced thunder, but what ARE all those claps, booms, and rumbles?

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To learn more about this topic, start your googling with these keywords:
Shock wave: a sharp change of pressure in a narrow region traveling through a medium, especially air, caused by explosion or by a body moving faster than sound

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REFERENCES
**************
Blanco, F., La Rocca, P., Petta, C. and Riggi, F. (2009) Modelling Digital Thunder. European Journal of Physics 30: 139–45. https://iopscience.iop.org/article/10.1088/0143-0807/30/1/014

Depasse, P. (1994) Lightning acoustic signature. Journal of Geophysics Research 99: 25933–25940. https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/94JD01986

Jagadeesh, G. (2008) Fascinating world of shock waves. Resonance 13: 752–767. https://www.ias.ac.in/public/Volumes/reso/013/08/0752-0767.pdf

Matson, W.R. (2018) Sonic Thunder: a Discussion of Natural and Artificial Shock Waves. Morgan and Claypool Publishers.

Sidath, A., Bodhika, J.A.P., Mahendra, F. (2016). Frequency Analysis of Thunder Features. Proceedings of International Conference on Lightning Protection (ICLP). https://www.researchgate.net/publication/309982045_Frequency_Analysis_of_Thunder_Features

Which type of milk is best for you? – Jonathan J. O’Sullivan & Grace E. Cunningham

Dive into the most popular milks— dairy, almond, soy and oat— to find out which is healthiest for you and for the planet.

If you go to the store in search of milk, there are a dizzying number of products to choose from. There’s dairy milk, but also plant-based products such as almond, soy, and oat milks. So which milk is actually best for you? And which uses the fewest resources and produces the least pollution? Jonathan J. O’Sullivan and Grace E. Cunningham dive into some of the most popular milks to find out.

Lesson by Jonathan J. O’Sullivan and Grace E. Cunningham, directed by Anton Bogaty.

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Is The Future Predetermined By Quantum Mechanics?

Einstein’s special theory of relativity combines space and time into one dynamic, unified entity – spacetime. But if time is connected to space, could the universe be anything but deterministic? And does that mean that the future is predestined?

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Can Our Parks Make Us More Resilient to Climate Change? | Katherine Peinhardt | TEDxKanzlerPark

Katherine Peinhardt’s research bridges the gap between placemaking and climate adaptation, exploring the ways that communities can build both physical and social resilience to climate change through their public spaces. Through her work at nonprofits focused on the public realm and on urban sustainability, Katherine developed a paradigm around resilient public spaces — which she sees as an often-overlooked opportunity to build livelier, more climate-adapted cities. Her research project is hosted by the German Development Institute. 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 Secret Ingredient in Ruminant Spit

Every day, humans literally flush a valuable resource down the toilet: nitrogen. But there are some animals that have figured out a way to recycle the extra nitrogen in their bodies by moving it not to their livers, but to their mouths!

Hosted by: Stefan Chin

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Sources:
Physiology of Urea cycle
https://www.ncbi.nlm.nih.gov/books/NBK513323/
Biochemistry, Ammonia
https://www.ncbi.nlm.nih.gov/books/NBK541039/
One intro line about Urea
https://scholars.lib.ntu.edu.tw/bitstream/123456789/65618/1/137.pdf
Urea metabolism and recycling in ruminants
https://biomedres.us/pdfs/BJSTR.MS.ID.003401.pdf

Human Rights as a Catalyst for Ambitious Climate Action | David Boyd | TEDxCFICanada

David R Boyd, the United Nations Special Rapporteur on human rights and the environment, discusses the way that human rights, including the right to a healthy environment have catalyzed more ambitious climate action across the world, from the Netherlands to Colombia. UN Special Rapporteur on human rights and the environment and author of The Rights of Nature. 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 Supernova That Measured The Universe

In 2015 astronomers successfully predicted the appearance of a supernova within a couple weeks. How did they do it? Win your Ultimate Tech Bundle by entering Fasthosts’ Techie Test here: https://fasthosts.com/veritasium This video was sponsored by Fasthosts.

Special thanks to Geraint Lewis for consulting on gravitational lensing. Check out his YouTube channel: https://ve42.co/gfl and books: https://ve42.co/GFLbooks

The supernova image in the thumbnail is from my documentary, Uranium: Twisting The Dragon’s Tail. Check it out here: https://ve42.co/Upbs

References:
DEJA VU ALL OVER AGAIN: THE REAPPEARANCE OF SUPERNOVA REFSDAL
P. L. Kelly et al. https://arxiv.org/abs/1512.04654

Predicted properties of multiple images of the strongly lensed supernova SN Refsdal
Masamune Oguri. Monthly Notices of the Royal Astronomical Society: Letters, Volume 449, Issue 1, 01 May 2015, Pages L86–L89, https://arxiv.org/abs/1411.6443

Multiple Images of a Highly Magnified Supernova Formed by an Early-Type Cluster Galaxy Lens
Patrick L. Kelly et al. https://arxiv.org/abs/1411.6009

“Refsdal” meets Popper: comparing predictions of the re-appearance of the multiply imaged supernova behind MACSJ1149.5+2223. T. Treu et al. https://arxiv.org/abs/1510.05750

Irwin I. Shapiro (1964). “Fourth Test of General Relativity”. Physical Review Letters. 13 (26): 789–791. doi:10.1103/PhysRevLett.13.789

Irwin I. Shapiro; Gordon H. Pettengill; Michael E. Ash; Melvin L. Stone; et al. (1968). “Fourth Test of General Relativity: Preliminary Results”. Physical Review Letters. 20 (22): 1265–1269. doi:10.1103/PhysRevLett.20.1265

Research & Writing by Stephanie Hamilton, Ralph Crewe, Petr Lebedev, Derek Muller, and Jonny Hyman
Animations & VFX by Jonny Hyman & Ivàn Tello
Thanks to Jaime Portsmouth for his gravitational lensing simulator and help enabling it to render simulations.
Supernova simulations courtesy of Adam Burrows
Numerous hubble images by Hubble Legacy Archive, NASA/ESA/STScI
Numerous images by ESO / NASA

If you adults won’t save the world, we will | Xiye Bastida

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

In a deeply moving letter to her grandmother, Xiye Bastida reflects on what led her to become a leading voice for global climate activism — from mobilizing school climate strikes to speaking at the United Nations Climate Summit alongside Greta Thunberg — and traces her resolve, resilience and profound love of the earth to the values passed down to her. “Thank you for inviting me to love the world since the moment I was born,” she says.

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How America could lose its allies | 2020 Election

What is NATO? And why is it still around?

What do you wish the presidential candidates would talk about? http://vox.com/ElectionVideos

For 150 years, the US avoided formal alliances. It occasionally went to war — fighting the War of 1812, the Spanish-American War, and World War I — but did so without entangling itself in promises to other countries. Then, after World War II, it abruptly changed course, and began to build a network of alliances unlike anything that had come before.

Over the next few decades, the US used those alliances to keep countries around the world close, and to fight Soviet expansion, by making a promise that it would go to war if any of its allies were ever attacked. After the Soviet Union fell, the initial purpose of those alliances was gone, but the US recommitted to them, signaling again and again that the central promise of those relationships was still in effect. It kept doing so for the next 25 years.

Then the US elected a leader who took America’s global relationships in a new direction. President Trump was skeptical that America’s network of alliances was still beneficial to the US. He began to distance the US from those alliances, raising doubts about whether America would actually follow through on the promise at the core of them if provoked. Some allies moved closer to Russia or China, both of whom had attempted to undermine America’s alliances.

Today, the future of those alliances is on the ballot in the US. One of the major presidential candidates in the 2020 election wants to return the US to its former status with its allies; the other finds its decades-old alliances costly and cumbersome. The world is waiting to see which vision Americans prefer.

This video is the sixth in our series on the 2020 election. We aren’t covering the horse race; instead, we want to explain the stakes of the election through the issues that matter the most to you. To do that, we want to know what you think the US presidential candidates should be talking about. Tell us here: http://vox.com/ElectionVideos

Sources and further reading:
Alex Ward: https://www.vox.com/2020/8/18/21334630/joe-biden-foreign-policy-explainer
Mira Rapp-Hooper, Shields of the Republic: https://www.amazon.com/Shields-Republic-Triumph-Americas-Alliances/dp/0674982959
Mark Webber and James Sperling: https://www.cambridge.org/core/services/aop-cambridge-core/content/view/CECD6A4DA95D3C177531E8C10A6E562B/S0260210519000123a.pdf/trumps_foreign_policy_and_nato_exit_and_voice.pdf
Joyce Kaufman: https://www.chathamhouse.org/sites/default/files/publications/ia/INTA93_2_01_Kaufman.pdf
Jennifer Lind: https://americas.chathamhouse.org/article/the-future-of-americas-ailing-alliances/
Klaus Larres: https://archive.transatlanticrelations.org/wp-content/uploads/2017/05/Larres-Donald-Trump-and-America%E2%80%99s-Grand-Strategy-U.S.-foreign-policy-toward-Europe-Russia-and-China-Global-Policy-May-2017.pdf
Fabrice Pothier and Alexander Vershbow: https://www.atlanticcouncil.org/wp-content/uploads/2017/05/NATO_and_Trump_web_0623.pdf
Elena Atanassova-Cornelis: https://www.tandfonline.com/doi/full/10.1080/03932729.2019.1665272
Shin Kawashima, Matake Kamiya, James L. Schoff: https://carnegieendowment.org/2019/10/10/managing-risks-and-opportunities-for-u.s.-japan-alliance-through-coordinated-china-policy-pub-80026

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This Is Why Birds Are So Affected by Oil Spills

It takes a bit more than just soap and water to save a bird that has been in an oil spill, but the experts at International Bird Rescue are more than up for the challenge.
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We have all seen images of birds affected by spills. Saving a bird that has been in an oil spill is a meticulous process to restore the incredible waterproofing capabilities of bird feathers so that the bird can be returned to the wild and survive.

We’ve been using our planet’s rivers, lakes and oceans to ship crude oil from place to place since the beginning of oil, and while this is an effective way to transport large quantities of petroleum, the method runs the risk of oil spills—events that have wreaked havoc on marine ecosystems.

Experts at International Bird Rescue aspire to rescue and rehabilitate the birds who have been victims of oil spills and the team has saved thousands of birds, cleaning and healing them to fly another day.

Find out exactly why oil spills are so damaging to seabirds in this ReWild.

#oilspill #birds #animalrescue #birdrescue #rehabilitation #animals #marinelife #science #seeker #rewild

Experts Disagree On Value Of Cleaning Oily Birds
https://www.npr.org/templates/story/story.php?storyId=128320107
“Since oil started gushing into the Gulf of Mexico over two months ago, we’ve all probably seen images of birds covered in black goo and of wildlife experts carefully cleaning, rehabilitating and finally releasing them back into the wild. It’s a small but very visible part of the huge story about the effects of all that oil on all kinds of animal life, and it’s a matter of debate.”

Waterbirds and a Changing Global Environment
https://www.bird-rescue.org/our-work/aquatic-bird-rehabilitation.aspx
“Many experts believe that critical hardships faced by pelicans, murres, and loons could be related to environmental shifts caused by warming oceans, pollution, collapsing fish stocks, and harmful algal blooms.”

King eider dies 16 years after rescue from oil spill
https://www.adn.com/anchorage/article/king-eider-dies-16-years-after-rescue-oil-spill/2012/10/15/
“It’s a big deal to know the duck lived for 16 years, at the far upper range of its life span, because so little data on the long-term survival of such birds exists, Holcomb said.
Rescuers also contend the recovery of the king eider offers at least anecdotal proof that the cost and effort of rehabilitating oiled birds pays off, something critics have long questioned.”

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Stephen Post: Learn to Forgive Because Bitterness is Bad For Your Health

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Secrets of the mind and free will — revealed by magic tricks | Alice Pailhès

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Are you in control of your choices? Magic tricks might reveal otherwise, says scientist and illusionist Alice Pailhès. Watch closely as she performs magic tricks that unveil how your brain works, how you can be subtly influenced and what that means for free will and your day-to-day life. Did she guess your card right?

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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Could we harness the power of a black hole? – Fabio Pacucci

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Imagine a distant future when humans reach beyond Earth, forge cities on planets thousands of light-years away, and maintain a galactic web of trade and transport. What would it take to make that leap? And where would we get enough energy to power that civilization? Fabio Pacucci explores the possibility of harnessing energy from a black hole to power a galactic civilization.

Lesson by Fabio Pacucci, directed by TOTEM Studio.

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Thank you so much to our patrons for your support! Without you this video would not be possible! Lawrence Teh Swee Kiang, BRENDAN NEALE, Jane White, Karmi Nguyen, John C. Vesey, Yelena Baykova, Harshita Jagdish Sahijwani, Won Jang, Nick Johnson, Tariq Keblaoui, Carlos H. Costa, Eimann P. Evarola, Aleksandr Lyozin, Mohamed Elsayed, Alan Wilder, Marcus Appelbaum, Francisco Leos, Kevin O’Leary, Les Howard, Ten Cha, Mehmet Yusuf Ertekin, Arlene Weston, phkphk123321, Jennifer Kurkoski, Ryan B Harvey, Austin Randall, Abhishek Bansal, Jayant Sahewal, Dian Atamyanov, igor romanenko, Jose Arcadio Valdes Franco, Brandy Sarver, Guy Hardy, Tu-Anh Nguyen, Karl Laius, Madee Lo, JY Kang, Marc Bou Zeid, Abhishek Goel, Charles A Hershberger, Coenraad Keuning, Robert Seik, Heidi Stolt, Alexis Hevia, Todd Gross, Brady Jones, Christina Salvatore, Zhong Ming Zenny Tan, Karisa Caudill and Bruno Pinho.

The First Conservation Efforts Protected… Poop?!

The idea of conservation might seem like a thing that’s only popped up in the last century or so, but organized efforts to conserve resources that directly benefit humans go back centuries!

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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Sources:
https://onlinelibrary.wiley.com/doi/full/10.1111/ibi.12867
https://www.researchgate.net/publication/38104317_Putting_the_rise_of_the_Inca_Empire_within_a_climatic_and_land_management_context
https://www.pbs.org/wgbh/nova/article/inca-empire/
https://americanhistory.si.edu/norie-atlas/guano-trade
https://www.intechopen.com/books/seabirds/guano-the-white-gold-of-the-seabirds
https://www.nature.com/articles/s41598-019-41030-6
https://www.smithsonianmag.com/science-nature/seabird-poop-worth-more-1-billion-annually-180975504/
https://www.nature.com/articles/s41598-018-36585-9
https://pubs.acs.org/doi/10.1021/acs.est.9b02098
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6415787/
https://americanhistory.si.edu/blog/what-load-guano-5-facts-you-didnt-know-about-bird-poop

Images:
https://wellcomecollection.org/works/m7jarbgt
https://commons.wikimedia.org/wiki/File:Tawantinsuyu_(orthographic_projection).svg
https://commons.wikimedia.org/wiki/File:FMIB_42121_Very_small_portion_of_a_flock_of_cormorants_on_the_south_island_of_the_Chinchas.jpeg
https://commons.wikimedia.org/wiki/File:Inca_Garcilaso_1879.jpg
https://commons.wikimedia.org/wiki/File:Inca_Garcilaso_1879.jpg
https://commons.wikimedia.org/wiki/File:Inca_Garcilaso_1879.jpg
https://commons.wikimedia.org/wiki/File:Inca_Garcilaso_1879.jpg
https://www.istockphoto.com/photo/ancient-inca-circular-terraces-in-moray-peru-gm1193108957-339240317
https://www.istockphoto.com/photo/ancient-inca-circular-terraces-in-moray-peru-gm1193108957-339240317
https://www.istockphoto.com/photo/ancient-inca-circular-terraces-in-moray-peru-gm1193108957-339240317
https://www.istockphoto.com/photo/peruvian-gray-pelican-on-the-water-gm1269708500-372940495
https://www.istockphoto.com/photo/peruvian-gray-pelican-on-the-water-gm1269708500-372940495
https://www.istockphoto.com/photo/peruvian-gray-pelican-on-the-water-gm1269708500-372940495
https://www.istockphoto.com/photo/flock-of-birds-on-the-ballestas-islands-off-the-coast-of-peru-gm1096652424-294464484
https://www.istockphoto.com/photo/pelicans-and-cormorants-gm472777906-63629797
https://www.istockphoto.com/photo/panorama-of-yosemite-valley-at-sunset-gm962031422-262726606
https://www.istockphoto.com/photo/coral-reef-gm153971297-17794310

Prison Reform via Shakespeare | Dameion Brown | TEDxMarin

A former life sentence inmate makes a case for the power of Shakespeare inside our prisons.
Dameion discovered Shakespeare through MSC’s Shakespeare at Solano Prison program while serving 23 years of a life sentence. Upon release, he took on the role of Othello, winning the Bay Area Theatre Critics Circle Award for “Best Actor.” He has continued to work as an actor with Marin Shakespeare Company, Ubuntu Theatre, Theatre First, and Lorraine Hansberry Theatre.
More info https://www.marinshakespeare.org/shakespeare-in-prison or https://donorbox.org/nonprofit-blog/from-prisoner-to-actor/ Dameion discovered Shakespeare through MSC’s Shakespeare at Solano Prison program while serving 23 years of a life sentence. Upon release, he took on the role of Othello, winning the Bay Area Theatre Critics Circle Award for “Best Actor.” He has continued to work as an actor with Marin Shakespeare Company, Ubuntu Theatre, Theatre First, and Lorraine Hansberry Theatre. 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

Fast-Tracking Climate Progress With New Science and Technology | Marc Schaus | TEDxCFICanada

Marc Schaus, author of Our Livable World: Creating the Clean Earth of Tomorrow, speaks about the vast new scientific and technological advancements being developed around the world in both clean energy and carbon capture. Marc Schaus is a professional research specialist across the sciences for research ventures, craft product manuals, and policymakers. He is the author ofPost Secular: Science, Humanism and the Future of Faith,and has written articles that have appeared inAreo Magazine, Free Inquiry Magazine,The Huffington Post, Patheos,and the academic journalAntennae.He currently resides in Ontario, Canada. 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 ancient, earth-friendly wisdom of Mongolian nomads | Khulan Batkhuyag

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There’s a lot we can learn from Mongolian nomads about how to survive in the years to come, says environmental activist Khulan Batkhuyag. Taking us on a journey through the country’s stunning rural landscape, she shows how Mongolian nomads have survived in remote areas for thousands of years by virtue of some truly incredible, earth-friendly, zero-waste innovations. There’s wisdom here for all of us on how to live more minimally, sustainably and in harmony with Mother Nature.

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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Amazon’s climate pledge to be net-zero by 2040 | Dave Clark and Kara Hurst

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In 2019, Amazon signed the Climate Pledge, a commitment to become a net-zero carbon business by 2040. Dave Clark, Amazon’s chief of consumer retail, and Kara Hurst, head of the company’s sustainability efforts, sit down with entrepreneur and activist Lindsay Levin to discuss how the company is planning to reduce its carbon footprint across all aspects of business — while inviting other companies to join them in this transformation.

This talk was part of the Countdown Global Launch on 10.10.2020. (Watch the full event here: https://youtu.be/5dVcn8NjbwY.) Countdown is TED’s global initiative to accelerate solutions to the climate crisis. The goal: to build a better future by cutting greenhouse gas emissions in half by 2030, in the race to a zero-carbon world. Get involved at https://countdown.ted.com/sign-up

Follow Countdown on Twitter: http://twitter.com/tedcountdown
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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

It’s pronounced GIF.

Is there a “right” way to pronounce it? And why is it so complicated? •
Written with Molly Ruhl and Gretchen McCulloch. Gretchen’s podcast has an episode all about this: https://lingthusiasm.com/post/180153994181/lingthusiasm-episode-26-why-do-c-and-g-come-in

Gretchen’s book BECAUSE INTERNET, all about the evolution of internet language, is available:
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(Those are affiliate links that give a commission to me or Gretchen, depending on country!)

Graphics by William Marler: https://wmad.co.uk
Audio mix by Graham Haerther: https://haerther.net

REFERENCES:

Buck, S. 2014. 70% of People Worldwide Pronounce ‘GIF’ With a Hard ‘G’. https://mashable.com/2014/10/21/mispronounced-words-tech/
O’Leary, A. (2013, May 21). An Honor for the Creator of the GIF. New York Times. Retrieved from https://bits.blogs.nytimes.com/2013/05/21/an-honor-for-the-creator-of-the-gif/
Olsen, S. The Gif Pronunciation Page. https://web.archive.org/web/20200225141100/https://www.olsenhome.com/gif/
Baio, A. 2014. ‘JIF’ Is the Format. ‘GIF’ Is the Culture. https://medium.com/message/jif-is-the-format-gif-is-the-culture-af8673796c44
McCulloch, G. 2015. Why the pronunciation of gif really can go either way. https://www.mentalfloss.com/article/69147/why-pronunciation-gif-really-can-go-either-way
Dow, M. 2020. It’s ‘gif and gif’: The english lexicon goes both ways. https://mcdowlinguist.github.io/2020/08/31/gif-pronunciation.html

I’m at https://tomscott.com
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This Mutant Super-Enzyme Can Eat Plastic Waste Within Days

Researchers have re-engineered a plastic-eating enzyme to degrade plastic bottles within days — and it might be ready to start eating our trash as soon as next year.
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The impacts of plastic pollution continue to be felt worldwide as we continue to struggle to find an impactful way to break down the convenient material.

But single-use plastics might have finally met their match.

A recent breakthrough that builds off of plastic-eating bugs discovered in 2016 might be able to enable full recycling of plastic products. The recent plastic-devouring development comes in the form of a super-enzyme derived from bacteria that naturally evolved the ability to eat plastic. The super-enzyme in question breaks down plastic bottles six times faster than before!

Find out more about how this plastic-eating marvel came to be in this Elements.

#plasticpollution #recycle #sustainability #enzyme #pollution #plastic #waste #science #seeker #elements

Read More:

Scientists Made a Super-Enzyme That Absolutely Ravages Plastic Bottles
https://www.popularmechanics.com/science/a34208031/super-enzyme-eats-plastic/
“The enzymes work together to “chop” the most common consumer plastic into chemical building blocks, which means they can be reapplied as the ingredients for the next generation of plastics instead of distilling these ingredients from newly extracted petrochemicals.”

Are plastic-eating bacteria the solution to ocean pollution? It’s not that simple, science shows.
https://www.edf.org/blog/2018/07/13/are-plastic-eating-bacteria-solution-ocean-pollution-its-not-simple-science-shows
“In fact, some scientists think microbes eating plastic are already an important reason that the plastics numbers do not add up – the amount of plastic we see in the ocean is much less than the total amount of plastic calculated to have been piled and poured into it.”

Characterization and engineering of a two-enzyme system for plastics depolymerization
https://www.pnas.org/content/early/2020/09/23/2006753117
“The recent discovery of a two-enzyme system for polyethylene terephthalate (PET) deconstruction, … suggests that nature may be evolving similar deconstruction strategies for synthetic plastics.”

____________________

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Animal Melodies: 5 of Nature’s Sweetest Singers

Humans are known to carry a tune, but we’re hardly the only animals that sing. In fact we’ve got five of nature’s finest singers, and what makes them so unique.

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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Bd_Tmprd, Harrison Mills, Jeffrey Mckishen, James Knight, Christoph Schwanke, Jacob, Matt Curls, Sam Buck, Christopher R Boucher, Eric Jensen, Lehel Kovacs, Adam Brainard, Greg, Ash, Sam Lutfi, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, charles george, Alex Hackman, Chris Peters, Kevin Bealer
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Sources:

https://blogs.scientificamerican.com/brainwaves/what-singing-fish-reveal-about-speech-and-hearing/
https://link.springer.com/article/10.1007/s10641-018-0767-6
https://www.researchgate.net/publication/11815621_Movement_and_sound_generation_by_toadfish_swimbladder
https://link.springer.com/article/10.1007%2Fs10641-018-0752-0
https://www.smithsonianmag.com/blogs/smithsonian-environmental-research-center/2018/06/04/ugly-fish-sings-its-own-song/
https://www.cell.com/current-biology/fulltext/S0960-9822(16)30179-8?innerTabgraphical_S0960982216301798=
https://www.the-scientist.com/features/researchers-study-rodent-songs-they-cant-hear-31942
https://www.popsci.com/singing-mice-brains-speech/
https://today.duke.edu/2015/04/mousesong
https://science.sciencemag.org/content/240/4849/217.abstract
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5831767/
https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1365-3032.1978.tb00129.x
https://www.nature.com/articles/nature13131
https://www.sciencedirect.com/science/article/pii/S0960982218307735
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3926192/
https://link.springer.com/article/10.1007%2Fs00114-006-0127-9
https://academic.oup.com/beheco/article/26/4/1156/211521
https://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652004000200009
https://www.sciencedaily.com/releases/2020/02/200219092530.htm
https://science.sciencemag.org/content/194/4261/211.abstract
https://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.0030164
https://courses.cit.cornell.edu/bionb4240/Readings/Suthers_Nature_s_music_F.pdf
https://www.sciencemag.org/news/2018/10/bird-voice-box-one-kind-animal-kingdom

Explosive Bat in Slow Motion Ft. Stuff Made Here – Smarter Every Day 245

Check out https://www.kiwico.com/smarter to get your first month free!
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How to get a Smarter Every Day / Trash Pandas baseball:
https://www.smartereveryday.com/baseball

Mad Batter Video:

Shane’s Original Video which made me reach out:

Supersonic Baseball Cannon:

~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Coefficient of Restitution
https://en.wikipedia.org/wiki/Coefficient_of_restitution

Collision Impedance Mismatch:
https://www.pas.rochester.edu/~sybenzvi/courses/phy103/2016f/phy103_impedance.pdf

~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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The race to a zero-emission world starts now | António Guterres

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

“If we don’t act now on climate change, this coming century may be one of humanity’s last,” says António Guterres, Secretary-General of the United Nations. As the world recovers from the COVID-19 pandemic, Guterres urges us to use this moment to rebuild with ambitious climate action in mind — and lays out a blueprint for getting companies, governments and countries to reach net-zero carbon emissions by 2050. “We can only win the race to zero together,” he says. “I urge you all to get on board.”

This talk was part of the Countdown Global Launch on 10.10.2020. (Watch the full event here: https://youtu.be/5dVcn8NjbwY.) Countdown is TED’s global initiative to accelerate solutions to the climate crisis. The goal: to build a better future by cutting greenhouse gas emissions in half by 2030, in the race to a zero-carbon world. Get involved at https://countdown.ted.com/sign-up

Follow Countdown on Twitter: http://twitter.com/tedcountdown
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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

Reptiles’ Breathing Hack Helped Birds Dominate the Air

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When we breathe out, we empty our lungs. But an ancient reptile figured out a more efficient way to breathe, which ultimately helped birds dominate the skies.

Hosted by: Hank Green

SciShow has a spinoff podcast! It’s called SciShow Tangents. Check it out at http://www.scishowtangents.org
———-
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:

Bd_Tmprd, Harrison Mills, Jeffrey Mckishen, James Knight, Christoph Schwanke, Jacob, Matt Curls, Sam Buck, Christopher R Boucher, Eric Jensen, Lehel Kovacs, Adam Brainard, Greg, Ash, Sam Lutfi, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, charles george, Alex Hackman, Chris Peters, Kevin Bealer
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———-
Sources:
https://doi.org/10.1152/physiol.00056.2014
https://doi.org/10.1098/rstb.2019.0140
https://doi.org/10.1007/s00360-016-0983-3
https://doi.org/10.1093/icb/icv078
https://doi.org/10.1038/nature12871
https://doi.org/10.1073/pnas.1405088111
https://doi.org/10.1126/science.1180219
https://doi.org/10.1126/science.1140273
https://doi.org/10.1086/605335
http://people.eku.edu/ritchisong/birdrespiration.html
http://www.palaeontologyonline.com/articles/2017/fossil-focus-archosaur-respiratory-system-breat

Images:
https://commons.wikimedia.org/wiki/File:AmericanAlligator.JPG
https://commons.wikimedia.org/wiki/File:AA_Iguana_Fot_Ars_Summum.JPG
https://www.storyblocks.com/video/stock/visualization-of-human-respiratory-system-r809oe47xiwd94zf4
https://www.storyblocks.com/video/stock/group-of-young-adult-friends-run-past-camera-in-a-forest-ryrt4ksjisjiqe4y
https://www.istockphoto.com/photo/tree-swallow-mouth-open-oregon-wild-bird-close-up-gm1247601699-363336731
https://www.istockphoto.com/vector/hen-gm1199743617-343383175
https://www.istockphoto.com/photo/greylag-geese-flying-gm1152401682-312638479
https://www.istockphoto.com/photo/nile-crocodile-the-largest-freshwater-predator-in-africa-found-in-in-lakes-rivers-gm1165173093-320514062
https://www.istockphoto.com/photo/monitor-lizard-in-natural-habitat-gm1141580307-305894562
https://www.istockphoto.com/vector/sparrow-silhouette-gm1044947016-279664874
https://www.istockphoto.com/vector/alligator-gm457548889-31726844
https://www.istockphoto.com/vector/gecko-silhouettes-gm155312641-3586727
https://www.istockphoto.com/vector/silhouettes-of-reptiles-gm1174932270-326963896
https://www.istockphoto.com/vector/bats-silhouettes-set-gm494787264-77653099
https://www.istockphoto.com/vector/african-animals-icon-set-gm451038591-25210090
https://www.istockphoto.com/photo/xl-migrating-canada-geese-gm136917788-13312220

The global movement to restore nature’s biodiversity | Thomas Crowther

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

Biodiversity is the key to life on Earth and reviving our damaged planet, says ecologist Thomas Crowther. Sharing the inside story of his headline-making research on reforestation, which led to the UN’s viral Trillion Trees Campaign, Crowther introduces Restor: an expansive, informative platform built to enable anyone, anywhere to help restore the biodiversity of Earth’s ecosystems.

This talk was part of the Countdown Global Launch on 10.10.2020. (Watch the full event here: https://youtu.be/5dVcn8NjbwY.) Countdown is TED’s global initiative to accelerate solutions to the climate crisis. The goal: to build a better future by cutting greenhouse gas emissions in half by 2030, in the race to a zero-carbon world. Get involved at https://countdown.ted.com/sign-up

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The Antibacterial Benefits of Wasp Venom

This week, scientists turned to an unlikely source to try to solve the problem of antibiotic resistance, and got a peek at the lifestyle of some of the very first mammals… by studying their teeth.

Hosted by: Michael Aranda

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Sources:
Nobels:
https://www.nobelprize.org/prizes/physics/2020/press-release/
https://www.nobelprize.org/prizes/chemistry/2020/press-release/
https://www.nobelprize.org/prizes/medicine/2020/summary/

Wasps:
https://www.pnas.org/content/early/2020/10/07/2012379117
https://www.eurekalert.org/emb_releases/2020-10/uops-pms100920.php
https://www.who.int/news-room/fact-sheets/detail/antibiotic-resistance

Mammals:
http://dx.doi.org/10.1038/s41467-020-18898-4
https://www.eurekalert.org/emb_releases/2020-10/uob-att100820.php
https://www.britannica.com/science/cementum
https://www.britannica.com/animal/Morganucodon
https://www.britannica.com/animal/reptile/Growth-and-longevity

Image Sources:
https://commons.wikimedia.org/wiki/File:HCV_EM_picture_2.png
https://commons.wikimedia.org/wiki/File:Vespula_flaviceps.jpg
https://www.nature.com/articles/s41467-020-18898-4#rightslink
https://commons.wikimedia.org/wiki/File:Human_tooth_diagram-en.svg
https://commons.wikimedia.org/wiki/File:Morganucodon.jpg

Can Pregnancy Tests Help Beat The Pandemic?

Thanks to OIST for sponsoring this video. To learn more, visit https://admissions.oist.jp/

The lab-on-a-stick that lets us know if we’re pregnant is a genius bit of technology that can be used to quickly determine everything from whether there are nuts in our chocolate to whether we have COVID.

LEARN MORE
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To learn more about this topic, start your googling with these keywords:
Early Pregnancy Test: A simple lateral flow assay that tests for the presence of a particular hormone in urine.
Lateral Flow Assay: Simple tests in which a liquid sample is run along the surface of a pad using capillary action and colored antibodies to show a visual positive or negative result.
Capillary Action: The movement of water-based liquids within small tubes due to the forces of cohesion, adhesion, and surface tension.
Antibody: A blood protein produced by the immune system in response to a particular antigen.
Antigen: A foreign substance which produces an immune response within the body.
False positive: A result produced that falsely indicates a particular antigen is present.
False negative: A result produced that falsely indicates that a particular antigen is absent.

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David Goldenberg | Script Writer, Narrator and Director
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REFERENCES
**************
Koczula, K., and Gallotta, A. (2016) Lateral Flow Assays. Essays in Biochemistry, 60: 111-120. Retrieved from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4986465/.

Seo, K., Holt, P., Stone, H. and Gast, R. (2003). Simple and rapid methods for detecting Salmonella enteritidis in raw eggs. International Journal of Food Microbiology, 87: 139-144. Retrieved from: https://pubmed.ncbi.nlm.nih.gov/12927716/.

Bishop, J., Hsieh, H., Gasperino, D., and Weigl, B. (2019). (1997). Sensitivity enhancement in lateral flow assays: a systems perspective. Lab On A Chip, 19: 2486-2499. Retrieved from: https://pubs.rsc.org/en/content/articlelanding/2019/lc/c9lc00104b#!divAbstract.

O’Farrell, B. (2008). Evolution in Lateral Flow–Based Immunoassay Systems. Nature Public Health Emergency Collection. Retrieved from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7119943/

Collins, F. (2020). Charting a Rapid Course Toward Better COVID-19 Tests and Treatments. NIH Director’s Blog. Retrieved from: https://directorsblog.nih.gov/2020/08/06/charting-a-rapid-course-toward-better-covid-19-tests-and-treatments/

Shen, A. Personal Communication (2020). Director, Micro/Bio/Nanofluidics Unit at Okinawa Institute of Science and Technology. https://groups.oist.jp/mbnu

The Inner Work of Racial Justice | Rhonda Magee | TEDxMarin

Illuminating a path each of us can follow to a life filled with far greater racial awareness, connection, and joy.

Rhonda V. Magee (M.A. Sociology, J.D.) is Professor of Law at the University of San Francisco, and is an internationally-recognized thought and practice leader focused on integrating Mindfulness into Higher Education, Law and Social Justice. Rhonda recently published her first book, The Inner Work of Racial Justice: Healing Ourselves and Transforming our Communities Through Mindfulness (September, 2019)

A student of a wide variety of Buddhist and other wisdom teachers, including Joan Halifax, Norman Fischer and Jon Kabat Zinn, she trained as a mindfulness teacher through the Oasis Teacher Training Institute of the University of Massachusetts Center for Mindfulness. She teaches Mindfulness-Based Interventions, awareness and compassion practices from a range of traditions. In October 2019, she received the Garrison Institute’s Insight + Impact Award.

More info https://www.usfca.edu/law/faculty/rhonda-magee Rhonda V. Magee (M.A. Sociology, J.D.) is Professor of Law at the University of San Francisco, and is an internationally-recognized thought and practice leader focused on integrating Mindfulness into Higher Education, Law and Social Justice. Rhonda recently published her first book, The Inner Work of Racial Justice: Healing Ourselves and Transforming our Communities Through Mindfulness (September, 2019)

A student of a wide variety of Buddhist and other wisdom teachers, including Joan Halifax, Norman Fischer and Jon Kabat Zinn, she trained as a mindfulness teacher through the Oasis Teacher Training Institute of the University of Massachusetts Center for Mindfulness. She teaches Mindfulness-Based Interventions awareness and compassion practices from a range of traditions. In October 2019, she received the Garrison Institute’s Insight + Impact Award. 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 Epigenetics Works And Can Improve Your Health | Jana Sremanakova | TEDxFulwood

NOTE FROM TED: While some viewers might find this talk helpful as a complementary approach, please do not look to this for medical advice. This talk only represents the speaker’s personal interpretation of epigenetics. TEDx events are independently organized by volunteers. The guidelines we give TEDx organizers are described in more detail here: http://storage.ted.com/tedx/manuals/tedx_content_guidelines.pdf

When it comes to our health, we often overestimate the power of the genes and overlook the effect of the environment, which plays a crucial role in influencing the body on the deepest level – our DNA. This talk offers insights from the research that will help you look at your lifestyle in a completely different light and might improve the way you live to maximise your health. Jana is a Nutrition and Cancer Research Scientist with a background in genetics, molecular biology, nutrition and exercise, completing PhD in Clinical Nutrition at the University of Manchester. Jana’s research focus is the implementation of nutrition in prevention, treatment and recovery from cancer. She is a member of the British Dietetic Association, member of European Society for Clinical Nutrition and Metabolism, and the Nutrition Society.

Jana is also a public speaker, delivering sessions on nutrition, health and prevention of diseases with the aim to raise awareness about once capacity to shape health towards food.
Jana is currently preparing to launch the business and social enterprise with the aim to educate children and youngsters about nutrition, alongside finalising a nutrition book for children.

Find out more about Jana here:
https://advancedeating.co.uk 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

OK Boomers, it’s time to grow up | Sven Steinmo | TEDxCU

Sven Steinmo is worried about the legacies his generation are leaving for young people today. He asks, “How did America go from being the ‘Land of Opportunity,’ to a county of so much uncertainty, so much inequality and so much fear,  —- in just one generation?”  His TEDxCU talk explains why we’re losing the American Dream and what we can do to bring it back.
Sven Steinmo is Professor of Political Science at the University of Colorado Boulder. He has received numerous awards for both his teaching and his writing including the European Research Council’s, “Advanced Researcher Frontier Grant,” the “Riker Award for the Best Book in Political Economy,” and the “Gabriel Almond Award for the Best Dissertation in Comparative Politics.” His writings are read widely around the world and have been translated into 7 different languages.

Steinmo’s books include: “The Leap of Faith,” “The Evolution of Modern States,” “Growing Apart? America, Canada and Europe in the 21st Century;” “Restructuring the Welfare State,” “Structuring Politics,” and “Taxation and Democracy.” He is currently writing a new book provisionally titled: “Killing the Dream: How America lost its way.” 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 Body Language Of Self-Confidence | Stefan Verra | TEDxMedUniGraz

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How do you want to be seen by others? How to present yourself in a self-confident and not arrogant way? According to Stefan Verra, everyone can change his or her body language in three simple steps that will have an enormous impact on the person opposite. Click on the video below, to find out more on Stefan Verra’s TEDxMedUniGraz 2020 Talk “The Body Language Of Self-Confidence”.
(Recorded on 08.09.2020) Stefan Verra, born in 1973, is one of the most in-demand body language experts in Europe. With great humour and deep scientific insight, he fascinates more than 100.000 participants every year in Europe, the USA and China. His body language analyses are frequently published in mainstream media.
Stefan is:
Guest lecturer at several universities and clinics
Best-selling author
Keynote Speaker for world leading companies and medical congresses
Body Language Coach for public personalities including sportspeople and entrepreneurs
He’s followed by more than 100.000 social media fans 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

Predictive Technologies | Rebekka Aigner-Carmichael & Robert Reihs | TEDxMedUniGraz

#JoinTheCountdown
What are predictive technologies? In what areas of our daily life do we already use this technology? What are the bright and the dark sides of it?
Meet Rebekka Aigner-Carmichael and Robert Reihs with their TEDxMedUniGraz 2020 Talk: “Predictive Technologies – Your Next Unwelcome Houseguest?”
(Recorded on 21.09.2020) Rebekka Aigner is a doctoral candidate at the Alpen-Adria University where she’s conducting interdisciplinary research into energy-saving technologies. She’s also the Chief Operations Officer of FRAISS IT – a 20-person software consultancy in the heart of Graz – where she consults with companies across verticals to implement complex digitization projects. Rebekka believes that technology may be our only solution to the complex global challenges of tomorrow.

Robert Reihs is a student at Technical University of Graz. He is working as a IT-Researcher at Medical University of Graz with the main research focus on data structuring, analysis and machine learning. Participating in international and national research consortia and industry projects. As a developer and service operator for BBMRI-ERIC he leads the development and operation of the negotiator service of BBMRI-ERIC. Robert thinks that a good combination between human intelligence and AI is required to solve our challenges we are facing. 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 The Corona Crisis Helped Us Find New Intergenerational Discourse | Tristan Horx | TEDxMedUniGraz

#JoinTheCountdown
OK Boomer! Hello Doomer! How are different generations interacting and communicating with one another and how did the corona crisis change this? What was the feeling our society had at the moment of corona lockdown? How can we stop dividing the world into boomers and doomers? What is the acceleration of deceleration?
Watch Tristan Horx’s TEDxMedUniGraz 2020 Talk “How The Corona Crisis Helped Us Find New Intergenerational Discourse And Thus Accelerated Climate Solutions!”
(Recorded on 21.09.2020) Tristan Horx could be described as a new generation of futurists, if he didn’t personally call for the end of the classic generational models. The speaker and author at the Zukunftsinstitut (Future Institute) deals with the topics of societal change, and is researching what will follow the Gen X, Y and Z. The speaker and author at the Zukunftsinstitut (Future Institute) deals with the topics of societal change, and is researching what will follow the Gen X, Y and Z. He has been a lecturer at SRH Hochschule Heidelberg since 2018 and a columnist at Kronen Zeitung since 2019.
His German or English presentations are about the developments in the fields of Mobility, Digitalisation and the old bogey Globalisation. As an Anthropologist, he sees his job as finding the bridge between creativity and economy within macro-societal questions. As the host of the Zukunftsinstitut’s Podcast “Treffpunkt: Zukunft” he speaks to prominent guests about their utopias and our future 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

Make your actions on climate reflect your words | Severn Cullis-Suzuki

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

“History has shown us that in moments of crisis, society can truly transform,” says environmental educator Severn Cullis-Suzuki. Nearly 30 years ago, at just 12 years old, she spoke at the UN’s Earth Summit in hopes of reversing the planet’s slide into ecological disaster. Some at the summit listened and took radical action, but for the rest of the world, it was business, politics and full-steam-ahead economic growth. Now, Cullis-Suzuki shares another warning about the future, this time informed by the COVID-19 crisis — and urges us all to make our actions on climate change reflect our words.

This talk was part of the Countdown Global Launch on 10.10.2020. (Watch the full event here: https://youtu.be/5dVcn8NjbwY.) Countdown is TED’s global initiative to accelerate solutions to the climate crisis. The goal: to build a better future by cutting greenhouse gas emissions in half by 2030, in the race to a zero-carbon world. Get involved at https://countdown.ted.com/sign-up

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Belgian Mystery Number

Can you solve this problem asked to 14 and 15 year olds in the Belgian Mathematical Olympiad?

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The Mystery of Saturn’s Giant Hexagonal Storm May Soon Be Solved

Saturn’s hexagonal storm has been raging for decades for reasons unknown… until now.
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Saturn has a giant 18,000-mile, hexagon-shaped cloud storm that could comfortably fit two Earths inside it, and since its discovery, the mysterious hexagon has left scientists stumped.

Until now.

A recent computer simulation designed by Harvard researchers might provide some clues about what exactly is forming this unusual hexagon marvel.

The high-speed, six-sided jet stream was first discovered in the early 1980’s by NASA’s Voyager flybys.

Using data taken during Cassini’s 13-year mission, researchers from Harvard set out to answer how Saturn’s turbulent conditions could give rise to stable, geometric jets.

The team of researchers built a 3-D computer simulation of Saturn’s hexagon to study its behavior. Find out more in this Elements.

#saturn #NASA #simulation #space #cassini #science #seeker #elements

Read More:

A new 3D model could explain the formation of a hexagon storm on Saturn

3D model seeks to explain mysterious hexagon storm on Saturn


“The model the researchers created suggests the storm is thousands of kilometers deep, well beneath Saturn’s cloud tops.”

No, That’s *Not* the Last Photo of Saturn From Cassini
https://www.syfy.com/syfywire/no-thats-not-the-last-photo-of-saturn-from-cassini
“That monochrome shot was taken on September 14, 2017, less than a day before Cassini burned up.”

These are the spookiest, scariest storms on any known planet
https://astronomy.com/news/2016/10/weirdest-planetary-weather
“From Jupiter’s red storms to distant howling lightning storms, these are the places you least want to be.”

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“Home to You” / “Don’t Kill My Vibe” | Sigrid

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

In front of a stunning forest lake, singer-songwriter Sigrid invites us to listen to uplifting vocals, warm guitar strums and delicate melodies as she performs her songs “Don’t Kill My Vibe” and “Home to You.”

This performance was part of the Countdown Global Launch on 10.10.2020. (Watch the full event here: https://youtu.be/5dVcn8NjbwY.) Countdown is TED’s global initiative to accelerate solutions to the climate crisis. The goal: to build a better future by cutting greenhouse gas emissions in half by 2030, in the race to a zero-carbon world. Get involved at https://countdown.ted.com/sign-up

Follow Countdown on Twitter: http://twitter.com/tedcountdown
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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

¿Innovando ó Regresando a Nuestras Raíces? | Érica Valencia | TEDxColegioHebreoTarbut

Érica valencia enseña cómo podemos ser coherentes con el entorno para lograr tener una mejor calidad de vida. Durante su plática, alienta a encontrar un balance social ambiental y económico que esté ligado al bienestar y propósito de los seres humanos. Apasionada de la sustentabilidad y restauración ambiental. Le gusta encontrar nuevas maneras en que las personas puedan realizar una reconexión con el medio ambiente, con su comunidad y consigo mismas. Esta labor la inició como un hobby y ahora es el objetivo principal de “Éctágono”, la empresa que fundó y de la cual es Directora General. Es arquitecta y coach holística. Actualmente es parte del consejo económico social y ambiental de la CDMX. Cuenta con diplomados en arquitectura bioclimática y ha participado en varios foros para la planeación socio ambiental para la ciudad como el Foro para la Agenda Verde urbana, el Plan de resiliencia Hídrica, Problemas de agua en la CDMX y el centro de Innovación empresarial. 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 rise and fall of history’s first empire – Soraya Field Fiorio

Discover history’s first empire: Sumer, located in Mesopotamia, which built the world’s first cities and created the first writing system.

History’s first empire rose out of a hot, dry landscape, without rainfall to nourish crops, without trees or stones for building. In spite of all this, its inhabitants built the world’s first cities, with monumental architecture and large populations— and they built them entirely out of mud. Soraya Field Fiorio details the rise and fall of the Sumerian empire.

Lesson by Soraya Field Fiorio, directed by Tomás Pichardo-Espaillat.

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Business Can Play a Profitable Role in Combating Climate Change, with Andrew Winston

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Circular Motion – Physics 101 / AP Physics 1 Review with Dianna Cowern

Lesson 7 (Circular Motion) of Dianna’s Intro Physics Class on Physics Girl. Never taken physics before? Want to learn the basics of physics? Need an AP Physics 1 review before the exam? This course is for you!

Exercises in this video:
Problem1: You have a one kilogram ball on a two meter long string. You swing it in a circle so it goes around once every two seconds. What’s the tension in the string?

Problem 2: What is the magnitude of the centripetal force keeping the Earth moving in its orbit around the Sun?

Problem 3: The coefficient of friction between tires and the road is about 1.0. At what angle should we bank our road if the average speed of cars driving on the road is 80 km/hr? (Don’t forget to convert to m/s!)

Thank you to Derek Muller from Veritasium and for his incredibly kind shout out at the end of the video, and for encouraging people to pursue physics! And thanks to Lizzie Armanto for letting me use her footage!

Credits:
Dianna Cowern – Executive Producer/Host/Writer
Jeff Brock – Lead Writer/Course Designer
Laura Chernikoff – Producer
Victoria C. Page – Video Editor
Sophia Chen – Researcher/Writer
Erika K. Carlson – Researcher/Writer
Hope Butner – Production Assistant
Levi Butner – Videographer
Lauren Ivy – Set Design
Vanessa Hill – Consulting Producer
Aleeza McCant – Illustrator
Rachel Allen – Illustrator
Consultant – Kyle Kitzmiller
Lucy Brock, Samantha Ward – Curriculum Consultants
Cathy Cowern – Transcription

Velodrome Photo: https://flic.kr/p/cSkSDQ
Fritz Zwicky Portrait: http://www.zwicky-stiftung.ch

Invest in Trust, Realize the Returns | Marissa Muller | TEDxPepperdineUniversity

In her talk, “Invest in Trust, Realize the Returns: Lessons from a 3,276-mile journey,” Marissa Muller, Global Product Marketing Lead at Tesla, shares how a solo coast-to-coast journey on a solar-powered bike taught her to trust in herself, trust in others, and allow others to trust her. Her experience reveals that when you tune into the frequency of trust you reap a powerful return. Marissa Muller is an adventurer and sustainable energy leader. She runs product marketing for Tesla’s energy products – Solarglass roof, solar panels, and Powerwall – which enables homeowners from around the world to generate and store clean energy for any time use. Marissa has been in the renewable energy industry for over a decade and started her career as a journalist in the US and Europe. She loves to tell a good story. Four years ago she built a solar bike and rode across America to fulfill a dream, test technology, and spark a conversation about sustainability. Marissa holds an MBA from IESE Business School in Barcelona, Spain and a Bachelor of Arts from the University of California, Berkeley. 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

Bivalves Could Be the New Lab Rats

Go to http://Brilliant.org/SciShow to try their Scientific Thinking course. The first 200 subscribers get 20% off an annual Premium subscription.

Bivalves—animals like mussels, clams and oysters—might be a more familiar sight in a restaurant than a lab. But it turns out that studying them might help us learn more about our own health.

Hosted by: Hank Green

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Sources:
https://www.nature.com/articles/nrmicro1750
https://www.nature.com/scitable/definition/model-organism-model-genetic-organism-139/
https://www.ncbi.nlm.nih.gov/books/NBK21070/
https://www.nature.com/articles/nature18599
https://www.cell.com/fulltext/S0092-8674%2815%2900243-3
https://www.sciencedirect.com/science/article/pii/S0145305X1830301X
https://www.bigelow.org/news/articles/2019-01-28.html

https://www.nature.com/articles/s41598-017-02457-x
https://doi.org/10.1080/09637486.2017.1307948
https://www.sciencedirect.com/science/article/pii/S001457930002192X
https://www.frontiersin.org/articles/10.3389/fcimb.2016.00194/full
https://dx.doi.org/10.1098%2Frsos.150144

Image Sources:
https://www.istockphoto.com/photo/raw-blue-mussels-on-a-white-background-gm645002008-117034371
https://www.istockphoto.com/photo/raw-clam-gm499197994-80080063
https://www.istockphoto.com/photo/fresh-oyster-isolated-gm1076323920-288234381
https://www.istockphoto.com/photo/portrait-of-a-ferret-looking-to-the-camera-gm538876982-95937877
https://www.istockphoto.com/photo/toxocara-canis-second-stage-larvae-hatch-from-eggs-gm942368788-257164522
https://www.istockphoto.com/photo/mediterranean-purple-sea-urchin-sphaerechinus-granularis-gm1155299359-314475157
https://commons.wikimedia.org/wiki/File:Alexandrium_catenella.jpg
https://commons.wikimedia.org/wiki/File:PDB_1p0l_EBI.jpg
https://www.istockphoto.com/photo/pile-of-clams-gm155013393-16875744
https://www.istockphoto.com/photo/mother-of-pearl-luxury-background-gm594911996-101975579
https://www.istockphoto.com/photo/isolated-shot-of-abalone-shell-on-white-background-gm1197971034-342210295
https://www.istockphoto.com/photo/luxury-nacre-seashell-background-texture-close-up-gm1018041166-273704142
https://www.istockphoto.com/vector/oysters-in-the-half-shell-icon-set-gm464423952-59019314
https://www.istockphoto.com/photo/x-ray-of-knee-gm1173941778-326273836
https://www.istockphoto.com/photo/colony-of-mussels-in-the-colorful-algae-and-water-plants-in-the-shallow-water-gm1159475925-317061450

The Real Reason You Hallucinate

Hallucinations explain where your consciousness comes from.
Sidenote Podcast: https://bit.ly/3drQwZV
Join our mailing list: https://bit.ly/34fWU27

Your brain is a complex organ that makes you…YOU! Your consciousness is controlled by a variety of molecules and receptors in your brain which are studied while hallucinating. New research places participants in an fMRI machine to study their brains while hallucinating, it shows a decrease in the default mode network. The default mode network is a brain region that controls worrying, reason, motivation, reflecting on your past and planning your future. It is the part of the brain that builds the story of you! Your consciousness, fear of mortality, obsession with the ego starts to dissolve when you hallucinate, and your brain starts to add information and use the neurology of your brain in different ways to cope leading to a hallucination. All of this research is leading to breakthroughs in addiction therapy, end of life therapy and most importantly, a clear picture of where your consciousness comes from.

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Resources/further reading:
https://www.cell.com/cell/pdf/S0092-8674(16)31749-4.pdf
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5756147/
https://www.cell.com/cell/fulltext/S0092-8674(20)31066-7?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0092867420310667%3Fshowall%3Dtrue
https://royalsocietypublishing.org/cms/asset/8cce8fd9-08a5-4909-8b9a-0035d1129cb6/rsif20140873f06.jpg
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5520807/
How To Change Your Mind by Michael Pollan
https://academic.oup.com/cercor/article/28/11/3939/4259746
https://www.ingentaconnect.com/content/ben/cdar/2013/00000006/00000001/art00003
https://www.tandfonline.com/doi/abs/10.1080/17512433.2018.1511424
https://www.sciencedirect.com/science/article/pii/S2215036616300657
https://molpharm.aspetjournals.org/content/72/5/1200.short