Search Results: "naacp ed nixon"

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05:36 Popular
Why should you read Virgil's "Aeneid"? - Mark Robinson

741 views / 0 likes - added 6 years ago

Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/why-should-you-read-virgil-s-aeneid-mark-robinson In 19 BC, the Roman poet Virgil suffered heatstroke and died on his journey back to Italy. On his deat
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The Norse myth that inspired The Lord of the Rings - Iseult Gillespie

264 views / 0 likes - added 2 years ago

Download a free audiobook version of The Lord of the Rings: The Fellowship of the Ring and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed--The dwarves were master craftspeople. One dwarf, Andvari, forged marvelous creations. He often t
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Run, sail, or hide? How to survive the destruction of Pompeii - Gary Devore

302 views / 4 likes - added 3 years ago

Download a free audiobook version of Into Thin Air and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed--Its a bustling day in Pompeii. After a quick visit to the market, Fabia spots her brothers, Lucius and Marcus, crossing the Forum. T
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What is the tragedy of the commons? - Nicholas Amendolare

730 views / 1 likes - added 6 years ago

Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/what-is-the-tragedy-of-the-commons-nicholas-amendolare Is it possible that overfishing, super germs, and global warming are all caused by the same thing
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The bug that poops candy - George Zaidan

424 views / 0 likes - added 4 years ago

Download a free audiobook version of "Ingredients" and support TED-Ed's nonprofit mission: https://www.audible.com/ted-edCheck out our full book recommendation: https://shop.ed.ted.com/collections/ted-ed-book-recommendations/products/ingredients--Aphids c
03:11 Popular
Circular Motion Demonstration With Sparkler

834 views / 0 likes - added 8 years ago

Couple of simple circular motion demonstrations to show students that the instantaneous velocity of an object moving in uniform circular motion is at a tangent to the circle. The film was shot and edited by Ed Prosser and David Sang advised on the script.
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The myth of the Sampo an infinite source of fortune and greed - Hanna-Ilona Hrmvaara

598 views / 0 likes - added 4 years ago

Download a free audiobook version of "The Lord of the Rings: The Fellowship of the Ring" and support TED-Ed's nonprofit mission: https://www.audible.com/ted-edCheck out our full book recommendation: https://shop.ed.ted.com/collections/ted-ed-book-recommen
05:41 Popular
Should we get rid of standardized testing? - Arlo Kempf

801 views / 0 likes - added 6 years ago

Download a free audiobook and support TED-Ed's nonprofit mission: http://www.audible.com/teded View full lesson: https://ed.ted.com/lessons/should-we-get-rid-of-standardized-testing-arlo-kempf Although standardized testing is a particularly hot topic in e
04:30 Popular
Where do math symbols come from? - John David Walters

876 views / 1 likes - added 6 years ago

Sign up for our newsletter here: https://ed.ted.com/newsletter View full lesson: https://ed.ted.com/lessons/where-do-math-symbols-come-from-john-david-walters Math is full of symbols: lines, dots, arrows, English letters, Greek letters, superscripts, subs
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05:42
Could we harness the power of a black hole? - Fabio Pacucci

339 views / 1 likes - added 3 years ago

Download a free audiobook version of "Children of Time" and support TED-Ed's nonprofit mission: https://www.audible.com/ted-edCheck out our full book recommendation: https://shop.ed.ted.com/collections/ted-ed-book-recommendations/products/children-of-time
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Something Special About 399 (and 2015) - Numberphile

626 views / 0 likes - added 9 years ago

It is the lowest Lucas-Carmichael Number... Featuring Ed Copeland. More about Ed's real work: http://bit.ly/CopelandGoesLong With thanks to these Patreon supporters: Herschal Sanders (from Susan) Today I Found Out Lê OK Merli Alex Bozzi Thomas J Petersen
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The journey to Pluto, the farthest world ever explored - Alan Stern

561 views / 2 likes - added 6 years ago

Check out Alan Stern's "Chasing New Horizons": https://shop.ed.ted.com/collections/ted-ed-book-recommendations/products/chasing-new-horizons View full lesson: https://ed.ted.com/lessons/the-journey-to-pluto-the-farthest-world-ever-explored-alan-stern As o
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Is human evolution speeding up or slowing down? - Laurence Hurst

388 views / 0 likes - added 3 years ago

Download a free audiobook version of "Sapiens" and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed Check out our full book recommendation: https://shop.ed.ted.com/collections/ted-ed-book-recommendations/products/sapiens--In the past 3,0
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Sampha - (No One Knows Me) Like The Piano (Official Music Video)

212 views / 0 likes - added 2 years ago

Taken from the album Process (Bonus Edition). Stream/purchase here: https://young.ffm.to/process-bonus http://sampha.com https://www.instagram.com/sampha/ https://twitter.com/sampha https://www.facebook.com/SamphaMusic https://y-o-u-n-g.com/ Label: Young
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How big is infinity? - Dennis Wildfogel

481 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/how-big-is-infinity Using the fundamentals of set theory, explore the mind-bending concept of the "infinity of infinities" -- and how it led mathematicians to conclude that math itself contains unanswerable ques
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Why should you read Virginia Woolf? - Iseult Gillespie

961 views / 0 likes - added 6 years ago

Download a free audiobook and support TED-Ed's nonprofit mission: http://www.audible.com/teded View full lesson: https://ed.ted.com/lessons/why-should-you-read-virginia-woolf-iseult-gillespie How best can we understand the internal experience of alienatio
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Why should you read “Crime and Punishment”? - Alex Gendler

621 views / 0 likes - added 5 years ago

Download a free audiobook version of "Crime and Punishment" and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed Check out our full book recommendation: https://shop.ed.ted.com/products/crime-and-punishment -- What drives someone to kill
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Sherlock Holmes and the case of the Red-Headed League - Alex Rosenthal

90 views / 0 likes - added 7 months ago

Download the Audible Original podcast Moriarty: The Silent Order and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed --One day in the fall, you called upon your friend, Sherlock Holmes, and found him in conversation with Jabez Wilson. W
05:32 Popular
What causes headaches? - Dan Kwartler

761 views / 0 likes - added 6 years ago

Download a free audiobook and support TED-Ed's nonprofit mission: https://adbl.co/2Hejwql Check out Oliver Sacks's "The Man Who Mistook His Wife for a Hat": http://bit.ly/2Hk8ShM View full lesson: https://ed.ted.com/lessons/what-causes-headaches-dan-kwart
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Why should you read Kurt Vonnegut? - Mia Nacamulli

618 views / 0 likes - added 5 years ago

Download a free audiobook version of "Slaughterhouse Five" and support TED-Ed's nonprofit mission: https://adbl.co/2DPI5Ys Check out our full book recommendation: https://shop.ed.ted.com/products/slaughterhouse-five Kurt Vonnegut found the tidy, satisfyin
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The History of Keeping Time - Karen Mensing

548 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/the-history-of-keeping-time Where did time-telling come from? What are time zones and why are there so many of them? Get the answers to these questions and more in this journey through the history of time -- fro
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Questions No One Knows the Answers to

687 views / 2 likes - added 6 years ago

In the first of a new TED-Ed series designed to catalyze curiosity, TED Curator Chris Anderson shares his boyhood obsession with quirky questions that seem to have no answers. (Introducing the series "Questions no one knows the answers to") "Questions No
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The story behind your glasses - Eva Timothy

384 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/the-story-behind-your-glasses-eva-timothy What scientific thinkers and achievements have led to vast improvements in optics over the centuries? Discover the fascinating ways that our understanding of light infor
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How To Learn? From Mistakes - Diana Laufenberg

835 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-to-learn-from-mistakes-diana-laufenberg Diana Laufenberg shares 3 surprising things she has learned about teaching -- including a key insight about learning from mistakes. (Filmed at TEDxMidAtlantic.) Talk b
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What causes hallucinations? - Elizabeth Cox

479 views / 0 likes - added 5 years ago

Download a free audiobook version of "Hallucinations" and support TED-Ed's nonprofit mission: https://adbl.co/2Kpt43k Check out our full book recommendation: https://shop.ed.ted.com/products/hallucinations View full lesson: https://ed.ted.com/lessons/what
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String Theory - Brian Greene

635 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/brian-greene-on-string-theory Physicist Brian Greene explains superstring theory, the idea that miniscule strands of energy vibrating in 11 dimensions create every particle and force in the universe. Talk by Bri
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The myth of Lokis monstrous children - Iseult Gillespie

343 views / 0 likes - added 2 years ago

Download a free audiobook version of Where the Crawdads Sing and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed--Odin, the king of Asgard, was plagued by nightmares. Three fearsome figures haunted his dreams: a massive, writhing shadow
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Could the Earth be swallowed by a black hole? - Fabio Pacucci

877 views / 3 likes - added 5 years ago

Download a free audiobook version of "The Hitchhiker's Guide to the Galaxy" and support TED-Ed's nonprofit mission: https://adbl.co/2xqDYxY Check out our full book recommendation: https://shop.ed.ted.com/products/a-hitchhikers-guide-to-the-galaxy View ful
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04:08
Why Is Glass Transparent? - Mark Miodownik

549 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/why-is-glass-transparent-mark-miodownik If you look through your glasses, binoculars or a window, you see the world on the other side. How is it that something so solid can be so invisible? Mark Miodownik melts
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04:26 Popular
The Survival of the Sea Turtle

1,815 views / 11 likes - added 6 years ago

Watch the miraculous journey of infant sea turtles as these tiny animals run the gauntlet of predators and harsh conditions. Then, in numbers, see how human behavior has made their tough lives even more challenging. Lesson by Scott Gass, animation by Vero
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The beginning of the universe, for beginners - Tom Whyntie

483 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/the-beginni... How did the universe begin -- and how is it expanding? CERN physicist Tom Whyntie shows how cosmologists and particle physicists explore these questions by replicating the heat, energy, and activi
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How do birds learn to sing? - Partha P. Mitra

775 views / 0 likes - added 6 years ago

Learn more about TED-Ed's student voice initiative here: http://bit.ly/2sHzrqU View full lesson: https://ed.ted.com/lessons/how-do-birds-learn-to-sing-partha-mitra A brown thrasher knows a thousand songs. A wood thrush can sing two pitches at once. A mock
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20:15 Popular
How I Discovered DNA - James Watson

1,180 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/james-watson-on-how-he-discovered-dna Nobel laureate James Watson opens TED2005 with the frank and funny story of how he and his research partner, Francis Crick, discovered the structure of DNA. Talk by James Wa
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05:24
The 4 greatest threats to the survival of humanity

211 views / 1 likes - added 1 year ago

Dig into the 4 biggest existential risks that threaten the survival of humanity, and explore how we can safeguard our future.--With the invention of the atomic bomb, humanity gained the power to destroy itself for the first time in our history. Since then
03:33 Popular
Newton's 3 Laws, with a bicycle - Joshua Manley

1,012 views / 5 likes - added 6 years ago

Watch full lesson here: http://ed.ted.com/lessons/joshua-manley-newton-s-3-laws-with-a-bicycle Why would it be hard to pedal a 10,000 pound bicycle? This simple explanation shows how Newton's 3 laws of motion might help you ride your bike.
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What if you experienced every human life in history?

236 views / 1 likes - added 1 year ago

Examine the ethical stance known as longtermism, which is the idea that we should be doing more to protect future generations.--Imagine that your life began as one of the planets first humans. After dying, you're reincarnated as the second human ever to l
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What's missing in medical research? - Greg Foot

123 views / 0 likes - added 1 year ago

Dig into why ethnic diversity is so important to medical research when creating new treatments and medicines for diseases.--While all humans share 99.9% of our DNA, differences in the remaining 0.1% hold important clues about the causes of diseasesand the
06:12 Popular
The wacky history of cell theory - Lauren Royal-Woods

1,314 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/the-wacky-history-of-cell-theory Scientific discovery isn't as simple as one good experiment. The weird and wonderful history of cell theory illuminates the twists and turns that came together to build the found
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08:39 Popular
What Is The Shortest Poem?

1,091 views / 0 likes - added 9 years ago

Click to SUBsauce: http://bit.ly/POIaN7 http://www.twitter.com/tweetsauce **sources and bonus links below** music by http://www.youtube.com/JakeChudnow ABCDEFGHIJKLMNOPQRSTUVWXYZ Big Bird song: http://www.youtube.com/watch?v=pr5er4ueWBQ John Denver's "Bal
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How Poachers Became Caretakers - John Kasaona

943 views / 0 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/how-poachers-became-caretakers-john-kasaona In his home of Namibia, John Kasaona is working on an innovative way to protect endangered animal species: giving nearby villagers (including former poachers) responsi
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Natural Pest Control ... Using Bugs! - Shimon Steinberg

564 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/natural-pest-control-using-bugs-shimon-steinberg Shimon Steinberg looks at the difference between pests and bugs -- and makes the case for using good bugs to fight bad bugs, avoiding chemicals in our quest for p
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The Human And The Honeybee - Dino Martins

668 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-human-and-the-honeybee-dino-martins Both honeybees and humans originated in East Africa, and the connection between us has survived the ages. Some of your favorite delicacies -- coffee, chocolate, mangoes --
06:49 Popular
A call to invention: DIY speaker edition - William Gurstelle

767 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/a-call-to-invention-diy-speaker-edition-william-gurstelle There's a pleasure in making things for yourself -- especially something unexpected. At TEDYouth 2012, William Gurstelle shows how to make your own speak
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Mysteries Of Vernacular: Inaugurate - Jessica Oreck

973 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/mysteries-of-vernacular-inaugurate-jessica-oreck From avian omens to the beginning of a new policy or the reign of a new politician, Jessica Oreck follows the flight path of the word inaugurate. Lesson and anima
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Sending a sundial to Mars - Bill Nye

525 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/sending-a-sundial-to-mars-bill-nye Bill Nye, otherwise known as The Science Guy, inherited his father's fascination with sundials. And so he campaigned to have sundials aboard the Spirit and Opportunity Mars exp
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Is Space Trying To Kill Us? - Ron Shaneyfelt

650 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/is-space-trying-to-kill-us-ron-shaneyfelt How likely is it that a massive asteroid will do major damage to Earth and its inhabitants? What about the sun -- is it dying out anytime soon? And the supermassive blac
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Why Do Your Knuckles Pop? - Eleanor Nelsen

817 views / 3 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/why-do-your-knuckles-pop-eleanor-nelsen Some people love the feeling of cracking their knuckles, while others cringe at the sound. But what causes that trademark pop? And is it dangerous? Eleanor Nelsen gives th
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The life cycle of a cup of coffee - A.J. Jacobs

360 views / 2 likes - added 3 years ago

Trace the globe-spanning journey of coffee as it goes from plant to brew, and the complex infrastructure that makes it possible.--How many people does it take to make a cup of coffee? For many of us, all it takes is a short walk and a quick pour. But this
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Are naked mole rats the strangest mammals? - Thomas Park

547 views / 0 likes - added 6 years ago

Visit TED-Ed's shop to pick up t-shirts, totes, mugs and more featuring characters from your favorite TED-Ed Animations: http://bit.ly/2IWAKWE View full lesson: https://ed.ted.com/lessons/are-naked-mole-rats-the-strangest-mammals-thomas-park What mammal h
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How Do Pain Relievers Work? - George Zaidan

645 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/how-do-pain-relievers-work Some people take aspirin or ibuprofen to treat everyday aches and pains, but how exactly do the different classes of pain relievers work? Learn about the basic physiology of how humans
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Expansion Pathology

463 views / 0 likes - added 6 years ago

Enlarging clinical samples for imaging to understand the building blocks of pathologies with nanoscale precision. A new microscopy technique from Ed Boyden's research team could enable higher-resolution biopsies. Learn more: https://www.media.mit.edu/post
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The most important century in human history

117 views / 0 likes - added 1 year ago

Is the 21st century the most pivotal time in human history? Explore how the decisions we make now may impact humanitys future.--Is it possible that this century is the most important one in human history? The 21st century has already proven to be a period
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Radioactivity: Expect the unexpected - Steve Weatherall

2,060 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/radioactivity-expect-the-unexpected-steve-weatherall Neutrons don't change into protons. Except, sometimes, they do. Radioactivity is the process under which the nucleus can change spontaneously from one element
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How To Understand Power - Eric Liu

976 views / 1 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/how-to-understand-power-eric-liu Every day, we move and operate within systems of power that other people have constructed. But we’re often uncomfortable talking about power. Why? Eric Liu describes the six sour
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first ever 3d animation (40 year old 3d computer graphics pixar 1972)

404 views / 0 likes - added 3 years ago

This historical video was recently re-discovered after being lost for many years. It was produced in 1972 and is believed to be the world's first computer-generated 3D animation. It was created by Ed Catmull, a true pioneer of 3D technology, who was a com
04:56 Popular
How Does Anesthesia Work? - Steven Zheng

1,044 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-does-anesthesia-work-steven-zheng When under anesthesia, you can’t move, form memories, or — hopefully — feel pain. And while it might just seem like you are asleep for that time, you actually aren’t. What’s
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01:57 Popular
How blue jeans were invented | Moments of Vision 10 - Jessica Oreck

893 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-blue-jeans-were-invented-moments-of-vision-10-jessica-oreck Today, 96% of American consumers own at least one pair of jeans. But where did these durable duds come from? And how did they get so popular? Jessi
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07:24 Popular
The Networked Beauty Of Forests - Suzanne Simard

720 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-networked-beauty-of-forests-suzanne-simard Deforestation causes more greenhouse gas emissions than all trains, planes and automobiles combined. What can we do to change this contributor to global warming? Su
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What Is Fat? - George Zaidan

2,170 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/what-is-fat-george-zaidan As the narrative goes, fat is bad. Well, it's actually more nuanced than that. The type of fat you eat is more impactful on your health than the quantity. George Zaidan examines triglyc
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03:39 Popular
The Science Of Static Electricity - Anuradha Bhagwat

1,242 views / 3 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/the-science-of-static-electricity-anuradha-bhagwat We’ve all had the experience: you’re walking across a soft carpet, you reach for the doorknob and … ZAP. But what causes this trademark jolt of static electrici
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What is a vector? - David Huynh

1,864 views / 2 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/what-is-a-vector-david-huynh Physicists, air traffic controllers, and video game creators all have at least one thing in common: vectors. But what exactly are they, and why do they matter? David Huynh explains h
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How to get better at video games, according to babies - Brian Christian

222 views / 0 likes - added 2 years ago

Explore what happened when the AI system Deep Q Networks (DQN) attempted to beat the Atari game Montezumas Revenge.--In 2013, a group of researchers wanted to create an AI system that could beat every Atari game. They developed a system called Deep Q Netw
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Could We Actually Live On Mars? - Mari Foroutan

1,131 views / 5 likes - added 8 years ago

View full lesson: https://ed.ted.com/lessons/could-we-actually-live-on-mars-mari-foroutan#watch There's a lot of talk these days about when and how we might all move to Mars. But what would it actually be like to live there? Mari Foroutan details the feat
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05:00 Popular
Comma Story - Terisa Folaron

1,061 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/comma-story-terisa-folaron It isn't easy holding complex sentences together (just ask a conjunction or a subordinate), but the clever little comma can help lighten the load. But how to tell when help is really n
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Protecting The Brain Against Concussion - Kim Gorgens

627 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/protecting-the-brain-against-concussion-kim-gorgens In a lively talk, neuropsychologist Kim Gorgens makes the case for better protecting our brains against the risk of concussion -- with a compelling pitch for p
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How to manage your time more effectively (according to machines) - Brian Christian

679 views / 0 likes - added 6 years ago

Download a free audiobook and support TED-Ed's nonprofit mission: http://adbl.co/2lFSkUw Check out Brian Christian and Tom Griffiths' "Algorithms to Live By": http://bit.ly/2CadQrt View full lesson: https://ed.ted.com/lessons/how-to-manage-your-time-more-
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Why Do Some People Go Bald? - Sarthak Sinha

928 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/why-do-some-people-go-bald-sarthak-sinha What do Charles Darwin, Michael Jordan, and Yoda have in common? They, like many other historical and fictive individuals, are bald. Scientists have long pondered, why do
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Vermicomposting: How Worms Can Reduce Our Waste - Matthew Ross

1,581 views / 2 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/vermicomposting-how-worms-can-reduce-our-waste-matthew-ross Nearly one third of our food ends up in the trash can. There is hope, however, in the form of worms, which naturally convert organic waste into fertili
03:37 Popular
How Tsunamis Work - Alex Gendler

3,168 views / 19 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-tsunamis-work-alex-gendler The immense swell of a tsunami can grow up to 100 feet, hitting speeds over 500 mph -- a treacherous combination for anyone or anything in its path. Alex Gendler details the causes
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The Invisible Motion Of Still Objects - Ran Tivony

623 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-invisible-motion-of-still-objects-ran-tivony Many of the inanimate objects around you probably seem perfectly still. But look deep into the atomic structure of any of them, and you’ll see a world in constant
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03:47 Popular
The Case Of The Vanishing Honeybees - Emma Bryce

753 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-case-of-the-vanishing-honeybees-emma-bryce In the past decade, the US honeybee population has been decreasing at an alarming and unprecedented rate. While this is obviously bad news for honeypots everywhere,
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04:20 Popular
How Do We Smell? - Rose Eveleth

923 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-do-we-smell-rose-eveleth An adult human can distinguish up to 10,000 odors. You use your nose to figure out what to eat, what to buy and even when it's time to take a shower. But how do the molecules in the
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04:03 Popular
How Languages Evolve - Alex Gendler

1,033 views / 2 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-languages-evolve-alex-gendler Over the course of human history, thousands of languages have developed from what was once a much smaller number. How did we end up with so many? And how do we keep track of the
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05:17 Popular
The History Of Tattoos - Addison Anderson

734 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-history-of-tattoos-addison-anderson If you have a tattoo, you’re part of a rich cultural history that dates back at least 8,000 years. Where did this practice of body modification come from, and how has its
04:05 Popular
What Is The Universe Made Of? - Dennis Wildfogel

923 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/what-is-the-universe-made-of-dennis-wildfogel The atoms around you have existed for billions of years -- and most originated in the flaming, gaseous core of a star. Dennis Wildfogel tells the captivating tale of
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05:01 Popular
What causes cavities? - Mel Rosenberg

1,356 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/what-causes-cavities-mel-rosenberg When a team of archeologists recently came across some 15,000-year-old human remains, they made an interesting discovery: the teeth of those ancient humans were riddled with ho
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04:44 Popular
Why do we itch? - Emma Bryce

1,019 views / 1 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/why-do-we-itch-emma-bryce The average person experiences dozens of individual itches each day. We’ve all experienced the annoyance of an inconvenient itch — but have you ever pondered why we itch in the first pl
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How the stethoscope was invented | Moments of Vision 7 - Jessica Oreck

693 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-the-stethoscope-was-invented-moments-of-vision-7-jessica-oreck The stethoscope is the single most widely used medical instrument in the world. But where did the idea come from? In the seventh installment of
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06:07 Popular
What is the universe expanding into? - Sajan Saini

824 views / 0 likes - added 5 years ago

Join TED-Ed's Student Program: http://bit.ly/2Nps4NW View full lesson: https://ed.ted.com/lessons/universe-expansion-sajan-saini The universe began in a Big Bang nearly fourteen billion years ago, and has been expanding ever since. But how does the univer
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The Science Of Symmetry - Colm Kelleher

1,219 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-science-of-symmetry-colm-kelleher When you hear the word symmetry, you might think generally of triangles, butterflies, or even ballerinas. But defined scientifically, symmetry is "a transformation that leav
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How The Food You Eat Affects Your Brain - Mia Nacamulli

1,083 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-the-food-you-eat-affects-your-brain-mia-nacamulli When it comes to what you bite, chew and swallow, your choices have a direct and long-lasting effect on the most powerful organ in your body: your brain. So
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What happens when you have a concussion? - Clifford Robbins

658 views / 1 likes - added 6 years ago

View full lesson: https://ed.ted.com/lessons/what-happens-when-you-have-a-concussion-clifford-robbins Each year in the United States, players of sports and recreational activities receive between 2.5 and 4 million concussions. How dangerous are all those
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The Battle Of The Greek Tragedies - Melanie Sirof

797 views / 2 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/the-battle-of-the-greek-tragedies-melanie-sirof The world of modern theater owes its roots to the tragedians of Ancient Greece. As far back as the 5th Century BCE, actors and playwrights were entertaining the ma
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If Superpowers Were Real: Immortality - Joy Lin

905 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/if-superpowers-were-real-immortality-joy-lin What if immortality wasn't just the stuff of epic comic book stories? Is it scientifically possible to be immortal? In this series, Joy Lin tackles six superpowers an
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If Superpowers Were Real: Invisibility - Joy Lin

758 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/if-superpowers-were-real-invisibility-joy-lin What if invisibility wasn't just the stuff of epic comic book stories? Is it scientifically possible to be invisible? In this series, Joy Lin tackles six superpowers
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One of the most difficult words to translate... - Krystian Aparta

1,122 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/one-of-the-most-difficult-words-to-translate-krystian-aparta As simple as it seems, it’s often impossible to accurately translate the word you without knowing a lot more about the situation where it’s being said
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What caused the French Revolution? - Tom Mullaney

882 views / 1 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/what-caused-the-french-revolution-tom-mullaney What rights do people have, and where do they come from? Who gets to make decisions for others, and on what authority? And how can we organize society to meet peopl
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Can We Eat To Starve Cancer? - William Li

706 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/can-we-eat-to-starve-cancer-william-li William Li presents a new way to think about treating cancer and other diseases: anti-angiogenesis, preventing the growth of blood vessels that feed a tumor. The crucial fi
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What happens if an engineered virus escapes the lab?

163 views / 0 likes - added 1 year ago

How do we keep labs that handle dangerous pathogens safe and leak-free? Dig into the ongoing debate over virology research. --Since the 1970s, researchers have engineered superbugs. While this research could help us prepare for future outbreaks, the stake
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What We Know (and Don't Know) About Ebola - Alex Gendler

773 views / 1 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/what-we-know-and-don-t-know-about-ebola-alex-gendler The highly virulent Ebola virus has seen a few major outbreaks since it first appeared in 1976 -- with the worst epidemic occurring in 2014. How does the viru
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The Power Of The Placebo Effect - Emma Bryce

910 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-power-of-the-placebo-effect-emma-bryce The placebo effect is an unexplained phenomenon wherein drugs, treatments, and therapies that aren’t supposed to have an effect — and are often fake — miraculously make
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If Superpowers Were Real: Flight - Joy Lin

830 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/if-superpowers-were-real-flight-joy-lin What if human flight wasn't just the stuff of epic comic book stories? Is it scientifically possible to fly? In this series, Joy Lin tackles six superpowers and reveals ju
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How the popsicle was invented | Moments of Vision 11 - Jessica Oreck

1,297 views / 2 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-the-popsicle-was-invented-moments-of-vision-11-jessica-oreck Each year, approximately 2 billion popsicles are sold worldwide. But where did the idea for this tasty treat come from? In the eleventh installmen
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An Exercise In Time Perception - Matt Danzico

768 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/an-exercise-in-time-perception-matt-danzico Why is that some experiences feel like they last forever, while others fly by? We tend to miscalculate the time it takes to engage in novel activities due to the influ
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Why Do We Hiccup? - John Cameron

1,147 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/why-do-we-hiccup-john-cameron The longest recorded case of hiccups lasted for 68 years … and was caused by a falling hog. While that level of severity is extremely uncommon, most of us are no stranger to an occa
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What We Can Learn From Galaxies Far, Far Away - Henry Lin

710 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/what-we-can-learn-from-galaxies-far-far-away-henry-lin In a fun, excited talk, teenager Henry Lin looks at something unexpected in the sky: galaxy clusters. By studying the properties of the universe's largest p
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The Science Of Snowflakes - Maruša Bradač

715 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-science-of-snowflakes-marusa-bradac One could say that snowflakes are simply frozen water — but if you compare a snowflake to an ice cube, you’ll notice a big difference. Why are all snowflakes six-sided? Wh
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Should You Trust Your First Impression? - Peter Mende-Siedlecki

1,128 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/should-you-trust-your-first-impression-peter-mende-siedlecki You can't help it; sometimes, you just get a bad feeling about someone that's hard to shake. So, what's happening in your brain when you make that cri
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How Statistics Can Be Misleading - Mark Liddell

1,227 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-statistics-can-be-misleading-mark-liddell Statistics are persuasive. So much so that people, organizations, and whole countries base some of their most important decisions on organized data. But any set of s
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Do Fad Diets Work? - Mia Nacamulli

1,420 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/do-fad-diets-work-mia-nacamulli Conventional wisdom about diets, including government health recommendations, seems to change all the time. And yet ads routinely come out claiming to have THE answer about what w
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Which Sunscreen Should You Choose? - Mary Poffenroth

841 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/which-sunscreen-should-you-choose-mary-poffenroth Sunscreen comes in many forms, each with its own impacts on your body and the environment. With so many options, how do you choose which sunscreen is best for yo
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How Braille was invented | Moments of Vision 9 - Jessica Oreck

1,558 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-braille-was-invented-moments-of-vision-9-jessica-oreck Today, Braille is the universally accepted system of writing for the blind, translated into almost every language in almost every country across the glo
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Pixar: The Math Behind The Movies - Tony DeRose

640 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/pixar-the-math-behind-the-movies-tony-derose The folks at Pixar are widely known as some of the world's best storytellers and animators. They are perhaps less recognized as some of the most innovative math whizz
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Why Wildfires Are Necessary - Jim Schulz

2,063 views / 6 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/why-wildfires-are-necessary-jim-schulz Our early ancestors relied on lightning to cause forest fires, from which they could collect coals and burning sticks to help them cook food and clear land. Yet, it wasn’t
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How To Use A Semicolon - Emma Bryce

872 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-to-use-a-semicolon-emma-bryce It may seem like the semicolon is struggling with an identity crisis. It looks like a comma crossed with a period. Maybe that’s why we toss these punctuation marks around like g
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The Cancer Gene We All Have - Michael Windelspecht

728 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-cancer-gene-we-all-have-michael-windelspecht Within every cell in our body, two copies of a tumor suppressor gene called BRCA1 are tasked with regulating the speed at which cells divide. Michael Windelspecht
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Can You Solve The Locker Riddle? - Lisa Winer

2,024 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/can-you-solve-the-locker-riddle-lisa-winer Your rich, eccentric uncle just passed away, and you and your 99 nasty relatives have been invited to the reading of his will. He wanted to leave all of his money to yo
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What Would Happen If You Didn’t Drink Water? - Mia Nacamulli

1,464 views / 4 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/what-would-happen-if-you-didn-t-drink-water-mia-nacamulli Water is essentially everywhere in our world, and the average human is composed of between 55 and 60% water. So what role does water play in our bodies,
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The simple story of photosynthesis and food - Amanda Ooten

907 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/the-simple-but-fascinating-story-of-photosynthesis-and-food-amanda-ooten Photosynthesis is an essential part of the exchange between humans and plants. Amanda Ooten walks us through the process of photosynthesis
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How False News Can Spread - Noah Tavlin

1,089 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-false-news-can-spread-noah-tavlin In previous decades, most news with global reach came from several major newspapers and networks with the resources to gather information directly. The speed with which info
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Why should you listen to Vivaldi's "Four Seasons"? - Betsy Schwarm

787 views / 1 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/why-should-you-listen-to-vivaldi-s-four-seasons-betsy-schwarm Light, bright, and cheerful, "The Four Seasons" by Antonio Vivaldi is some of the most familiar of all early 18th century music, featured in numerous
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A clever way to estimate enormous numbers - Michael Mitchell

1,161 views / 0 likes - added 6 years ago

View the full lesson here: http://ed.ted.com/lessons/michael-mitchell-a-clever-way-to-estimate-enormous-numbers Have you ever tried to guess how many pieces of candy there are in a jar? Or tackled a mindbender like: "How many piano tuners are there in Chi
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Making sense of spelling - Gina Cooke

702 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/making-sense-of-spelling-gina-cooke What can spelling tell us about relationships between words? While spelling may sometimes seem random or unexpected, this lesson illuminates how peeling back the layers of spe
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Where Did English Come From? - Claire Bowern

1,144 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/where-did-english-come-from-claire-bowern When we talk about ‘English’, we often think of it as a single language. But what do the dialects spoken in dozens of countries around the world have in common with each
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How Smart Are Dolphins? - Lori Marino

1,977 views / 8 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-smart-are-dolphins-lori-marino Dolphins are one of the smartest animal species on Earth. In fact, their encephalization quotient (their brain size compared to the average for their body size) is second only
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Will we ever be able to teleport? - Sajan Saini

659 views / 0 likes - added 6 years ago

View full lesson: https://ed.ted.com/lessons/will-we-ever-be-able-to-teleport-sajan-saini Is teleportation possible? Could a baseball transform into something like a radio wave, travel through buildings, bounce around corners, and change back into a baseb
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How To Unboil An Egg - Eleanor Nelsen

774 views / 1 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/how-to-unboil-an-egg-eleanor-nelsen It’s so obvious that it’s practically proverbial: you can’t unboil an egg. But actually, it turns out that you can -- sort of. Eleanor Nelsen explains the process by which mec
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The Science Of Macaroni Salad: What's In A Molecule? - Josh Kurz

593 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-science-of-macaroni-salad-what-s-in-a-molecule-josh-kurz What do macaroni salad and gasoline have in common? They are made of exactly the same stuff -- specifically, the same atoms, just rearranged. So, whil
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A Guide To The Energy Of The Earth - Joshua M. Sneideman

1,635 views / 1 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/a-guide-to-the-energy-of-the-earth-joshua-m-sneideman Energy is neither created nor destroyed — and yet the global demand for it continues to increase. But where does energy come from, and where does it go? Josh
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Disappearing Frogs - Kerry M. Kriger

880 views / 5 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/disappearing-frogs-kerry-m-kriger Frogs (and amphibians in general) are in danger -- worldwide, nearly one-third of the world's amphibian species are on the verge of extinction. And yet, frogs contribute to our
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Can you find the next number in this sequence? - Alex Gendler

2,351 views / 1 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/can-you-find-the-next-number-in-this-sequence-alex-gendler 1, 11, 21, 1211, 111221. These are the first five elements of a number sequence. Can you figure out what comes next? Alex Gendler reveals the answer and
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What Really Happens To The Plastic You Throw Away - Emma Bryce

1,381 views / 0 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/what-really-happens-to-the-plastic-you-throw-away-emma-bryce We’ve all been told that we should recycle plastic bottles and containers. But what actually happens to the plastic if we just throw it away? Emma Bry
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The Beautiful Tricks Of Flowers - Jonathan Drori

779 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/jonathan-driori-the-beautiful-tricks-of-flowers In this visually dazzling talk, Jonathan Drori shows the extraordinary ways flowering plants -- over a quarter million species -- have evolved to attract insects t
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Can You Solve The Bridge Riddle? - Alex Gendler

2,069 views / 3 likes - added 8 years ago

View full lesson: https://ed.ted.com/lessons/can-you-solve-the-bridge-riddle-alex-gendler Taking that internship in a remote mountain lab might not have been the best idea. Pulling that lever with the skull symbol just to see what it did probably wasn’t s
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How X-rays See Through Your Skin - Ge Wang

1,093 views / 3 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-x-rays-see-through-your-skin-ge-wang Originally discovered by accident, X-rays are now used about 100 million times a year in clinics around the world. How do these magic eyes work? Ge Wang details the histo
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Why Do We Dream? - Amy Adkins

1,604 views / 2 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/why-do-we-dream-amy-adkins In the 3rd millennium BCE, Mesopotamian kings recorded and interpreted their dreams on wax tablets. In the years since, we haven't paused in our quest to understand why we dream. And w
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Why Do Our Bodies Age? - Monica Menesini

732 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/why-do-our-bodies-age-monica-menesini Human bodies aren’t built for extreme aging: our capacity is set at about 90 years. But what does aging really mean, and how does it counteract the body’s efforts to stay al
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Does your vote count? The Electoral College explained - Christina Greer

626 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/does-your-vote-count-the-electoral-college-explained-christina-greer You vote, but then what? Discover how your individual vote contributes to the popular vote and your state's electoral vote in different ways--
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What's The Definition Of Comedy? Banana. - Addison Anderson

1,048 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/what-s-the-definition-of-comedy-banana-addison-anderson What makes us giggle and guffaw? The inability to define comedy is its very appeal; it is defined by its defiance of definition. Addison Anderson riffs on
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How To Make A Mummy - Len Bloch

1,220 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-to-make-a-mummy-len-bloch As anyone who’s seen a mummy knows, ancient Egyptian priests went to a lot of trouble to evade decomposition. But how successful were they? Len Bloch details the mummification proce
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Haptography: Digitizing our sense of touch - Katherine Kuchenbecker

792 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/haptography-digitizing-our-sense-of-touch-katherine-kuchenbecker Can the sense of touch be harnessed with technology? The field of haptics explores the revolutionary: interactive touch technology. At TEDYouth 20
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The Benefits Of Good Posture - Murat Dalkiniç

1,105 views / 2 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-benefits-of-good-posture-murat-dalkinic Has anyone ever told you, “Stand up straight!” or scolded you for slouching at a family dinner? Comments like that might be annoying—but they’re not wrong. Your postur
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Can You Solve The Passcode Riddle? - Ganesh Pai

1,422 views / 2 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/can-you-solve-the-passcode-riddle-ganesh-pai In a dystopian world, your resistance group is humanity’s last hope. Unfortunately, you’ve all been captured by the tyrannical rulers and brought to the ancient colis
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Is it bad to hold your pee? - Heba Shaheed

873 views / 4 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/is-it-bad-to-hold-your-pee-heba-shaheed Humans should urinate at least four to six times a day, but occasionally, the pressures of modern life force us to clench and hold it in. How bad is this habit, and how lo
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Can you solve the river crossing riddle? - Lisa Winer

1,825 views / 3 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/can-you-solve-the-river-crossing-riddle-lisa-winer As a wildfire rages through the grasslands, three lions and three wildebeest flee for their lives. To escape the inferno, they must cross over to the left bank
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What is McCarthyism? And how did it happen? - Ellen Schrecker

612 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/what-is-mccarthyism-and-how-did-it-happen-ellen-schrecker In the 1950s, as part of a campaign to expose suspected Communists, thousands of individuals were aggressively investigated and questioned before governm
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Where Do Genes Come From? - Carl Zimmer

1,861 views / 0 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/where-do-genes-come-from-carl-zimmer When life emerged on Earth about 4 billion years ago, the earliest microbes had a set of basic genes that succeeded in keeping them alive. In the age of humans and other larg
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Are preservatives bad for you?

2,083 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/are-preservatives-bad-for-you-eleanor-nelsen Food doesn’t last. In days, sometimes hours, bread goes moldy, apple slices turn brown, and bacteria multiply in mayonnaise. But you can find all of these foods out o
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How polarity makes water behave strangely - Christina Kleinberg

942 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/how-polarity-makes-water-behave-strangely-christina-kleinberg Water is both essential and unique. Many of its particular qualities stem from the fact that it consists of two hydrogen atoms and one oxygen, theref
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How To Turn Protest Into Powerful Change - Eric Liu

646 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-to-turn-protest-into-powerful-change-eric-liu We live in an age of protest. On campuses, in public squares, on streets and social media, protestors around the world are challenging the status quo. But while
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How to spot a misleading graph - Lea Gaslowitz

844 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/how-to-spot-a-misleading-graph-lea-gaslowitz When they’re used well, graphs can help us intuitively grasp complex data. But as visual software has enabled more usage of graphs throughout all media, it has also m
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Is Telekinesis Real? - Emma Bryce

2,493 views / 1 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/is-telekinesis-real-emma-bryce Telekinesis, the ability to manipulate matter with the mind alone, is a trait exhibited by some of the most iconic fictional characters, including Neo, Yoda, and, of course, Carrie
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The Treadmill's Dark And Twisted Past - Conor Heffernan

571 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-treadmill-s-dark-and-twisted-past-conor-heffernan The constant thud underneath your feet. The constrained space. The monotony of going nowhere fast. Running on a treadmill can certainly feel like torture, bu
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Where Does Gold Come From? - David Lunney

1,319 views / 4 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/where-does-gold-come-from-david-lunney Did you know that gold is extraterrestrial? Instead of arising from our planet’s rocky crust, it was actually cooked up in space and is present on Earth because of cataclys
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How to use rhetoric to get what you want - Camille A. Langston

676 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-to-use-rhetoric-to-get-what-you-want-camille-a-langston How do you get what you want, using just your words? Aristotle set out to answer exactly that question over two thousand years ago with a treatise on r
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How Memories Form And How We Lose Them - Catharine Young

918 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-memories-form-and-how-we-lose-them-catharine-young Think back to a really vivid memory. Got it? Now try to remember what you had for lunch three weeks ago. That second memory probably isn’t as strong—but why
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Pruney Fingers: A Gripping Story - Mark Changizi

785 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/pruney-fingers-a-gripping-story-mark-changizi Why do fingers become pruney when they get wet? Likely, for the same reasons that tires have treads. Mark Changizi examines the evolutionary reasons for pruney finge
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Could A Blind Eye Regenerate? - David Davila

1,327 views / 1 likes - added 9 years ago

View full lesson here: http://ed.ted.com/lessons/could-a-blind-eye-regenerate-david-davila We tend to think of blindness as something you're born with, but with certain genetic diseases, it can actually develop when you’re a kid, or even when you’re an ad
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Ideasthesia: How Do Ideas Feel? - Danko Nikolić

664 views / 0 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/ideasthesia-how-do-ideas-feel-danko-nikolic The traditional model of our mental function is that first our senses provide data to our brain, which then translates those senses into the appropriate mental phenome
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The Great Brain Debate - Ted Altschuler

751 views / 0 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/the-great-brain-debate-ted-altschuler Throughout history, scientists have proposed conflicting ideas on how the brain carries out functions like perception, memory, and movement. Is each of these tasks carried o
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The Evolution Of The Book - Julie Dreyfuss

753 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-evolution-of-the-book-julie-dreyfuss What makes a book a book? Is it just anything that stores and communicates information? Or does it have to do with paper, binding, font, ink, its weight in your hands, th
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Could one vaccine protect against everything?

466 views / 0 likes - added 1 year ago

Explore how scientists are developing a flu vaccine that would protect you against every strain even ones that dont exist yet.--Theres a vaccine being developed now that would protect you against every strain of the flu even ones that dont exist yet. But
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The rights you might not realize you have - Shannon Odell

85 views / 0 likes - added 6 months ago

Do you have a right to a healthy planet? Dig into the movement to hold governments accountable for climate change inaction.--Since 2015, an unprecedented movement has been sweeping courts around the world. Groups of young plaintiffs are suing their govern
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Why do we feel nostalgia? - Clay Routledge

513 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/why-do-we-feel-nostalgia-clay-routledge Nostalgia was once considered an illness confined to specific groups of people. Today, people all over the world report experiencing and enjoying nostalgia. But how does n
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How Do Geckos Defy Gravity? - Eleanor Nelsen

805 views / 2 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/how-do-geckos-defy-gravity-eleanor-nelsen Geckos aren’t covered in adhesives or hooks or suction cups, and yet they can effortlessly scale vertical walls and hang from ceilings. What’s going on? Eleanor Nelsen e
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05:23 Popular
Why Elephants Never Forget - Alex Gendler

1,119 views / 3 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/why-elephants-never-forget-alex-gendler It’s a common saying that elephants never forget. But the more we learn about elephants, the more it appears that their impressive memory is only one aspect of an incredib
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04:57
Birth Of A Nickname - John McWhorter

614 views / 2 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/birth-of-a-nickname-john-mcwhorter Where do nicknames come from? Why are Ellens called Nellie and Edwards Ned? It's all a big misunderstanding from the early days of the English language, a misunderstanding that
05:11 Popular
What Is Obesity? - Mia Nacamulli

871 views / 1 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/what-is-obesity-mia-nacamulli Obesity is an escalating global epidemic. It substantially raises the probability of diseases like diabetes, heart disease, stroke, high blood pressure, and cancer. But what is the
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How does your body know what time it is? - Marco A. Sotomayor

819 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-does-your-body-know-what-time-it-is-marco-a-sotomayor Being able to sense time helps us do everything from waking and sleeping to knowing precisely when to catch a ball that’s hurtling towards us. And we owe
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05:15 Popular
Why are sloths so slow? - Kenny Coogan

909 views / 2 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/why-are-sloths-so-slow-kenny-coogan Sloths spend most of their time eating, resting, or sleeping; in fact, they descend from their treetops canopies just once a week, for a bathroom break. How are these creature
04:12 Popular
How Do Tornadoes Form? - James Spann

2,928 views / 28 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/how-do-tornadoes-form-james-spann Tornadoes are the most violent storms on Earth, with wind velocities that can exceed 200 miles per hour. How do these terrifying cyclones form? Meteorologist James Spann sheds l
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04:07
What Light Can Teach Us About The Universe - Pete Edwards

664 views / 1 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/what-light-can-teach-us-about-the-universe-pete-edwards Humanity has long been looking at the universe and asking the big questions: How did it begin? How will it end? Cosmologists are searching hard for the ans
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04:23 Popular
Overcoming Obstacles - Steven Claunch

1,023 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/there-s-no-dishonor-in-having-a-disability-steven-claunch When faced with a bump in the road, sometimes we forget we have a choice: overcome the obstacle or let it overcome you. Steven Claunch, who was born with
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Why Do Cats Act So Weird? - Tony Buffington

1,698 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/why-do-cats-act-so-weird-tony-buffington They’re cute, they’re lovable, and judging by the 26 billion views on over 2 million YouTube videos of them, one thing is certain: cats are very entertaining. But their s
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04:56 Popular
How Interpreters Juggle Two Languages At Once - Ewandro Magalhaes

1,403 views / 0 likes - added 8 years ago

View full Lesson: https://ed.ted.com/lessons/how-interpreters-juggle-two-languages-at-once-ewandro-magalhaes Language is complex, and when abstract or nuanced concepts get lost in translation, the consequences may be catastrophic. Given the complexities o
01:40 Popular
How the bendy straw was invented | Moments of Vision 12 - Jessica Oreck

884 views / 1 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/how-the-bendy-straw-was-invented-moments-of-vision-12-jessica-oreck Today, Americans use an estimated 500 million drinking straws every day. But where did the idea for this beloved utensil come from? In the twel
04:42 Popular
How To Write Fiction That Comes Alive - Nalo Hopkinson

912 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-to-write-fiction-that-comes-alive-nalo-hopkinson The point of fiction is to cast a spell, a momentary illusion that you are living in the world of the story. But as a writer, how do you suck your readers int
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04:39 Popular
Does Grammar Matter? - Andreea S. Calude

925 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/does-grammar-matter-andreea-s-calude It can be hard sometimes, when speaking, to remember all of the grammatical rules that guide us when we’re writing. When is it right to say “the dog and me” and when should i
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04:28 Popular
History vs. Cleopatra - Alex Gendler

1,419 views / 7 likes - added 7 years ago

View full lesson: ed.ted.com/lessons/history-vs-cleopatra-alex-gendler She was the most notorious woman in ancient history, a queen who enraptured not one but two of Rome’s greatest generals. But was she just a skilled seductress – or a great ruler in her
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The philosophy of Stoicism - Massimo Pigliucci

551 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/the-philosophy-of-stoicism-massimo-pigliucci What is the best life we can live? How can we cope with whatever the universe throws at us and keep thriving nonetheless? The ancient Greco-Roman philosophy of Stoici
03:38 Popular
Could Comets Be The Source Of Life On Earth? - Justin Dowd

1,598 views / 4 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/could-comets-be-the-source-of-life-on-earth-justin-dowd While comets were historically thought to be ill omens of war and famine, recent science has revealed that these celestial wonders actually contain amino a
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04:25
How Do We Separate The Seemingly Inseparable? - Iddo Magen

672 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-do-we-separate-the-inseparable-iddo-magen Your cell phone is mainly made of plastics and metals. It’s easy to appreciate the process by which those elements add up to something so useful. But there’s another
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05:45 Popular
How To Track A Tornado - Karen Kosiba

777 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-to-track-a-tornado-karen-kosiba Atmospheric scientist Karen Kosiba studies how tornadoes form and do damage. Getting measurements near the surface of these twisters is difficult, though, and driving into the
04:37
Sunlight Is Way Older Than You Think - Sten Odenwald

477 views / 0 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/sunlight-is-way-older-than-you-think-sten-odenwald It takes light a zippy 8 minutes to reach Earth from the surface of the Sun. But how long does it take that same light to travel from the Sun’s core to its surf
04:33 Popular
How big is a mole? (Not the animal, the other one.) - Daniel Dulek

1,369 views / 0 likes - added 6 years ago

View full lesson here: http://ed.ted.com/lessons/daniel-dulek-how-big-is-a-mole-not-the-animal-the-other-one The word "mole" suggests a small, furry burrowing animal to many. But in this lesson, we look at the concept of the mole in chemistry. Learn the i
03:19 Popular
How Heavy Is Air? - Dan Quinn

1,177 views / 0 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/how-heavy-is-air-dan-quinn Too often we think of air as empty space — but compared to a vacuum, air is actually pretty heavy. So, just how heavy is it? And if it's so heavy, why doesn't it crush us? Dan Quinn de
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03:21 Popular
What Does The Pancreas Do? - Emma Bryce

1,740 views / 0 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/what-does-the-pancreas-do-emma-bryce Beneath your ribs, you’ll find, among other things, the pancreas -- an organ that works a lot like a personal health coach. Emma Bryce explains how this organ controls your s
03:46 Popular
What Triggers A Chemical Reaction? - Kareem Jarrah

2,451 views / 3 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/what-triggers-a-chemical-reaction-kareem-jarrah Chemicals are in everything we see, and the reactions between them can look like anything from rust on a spoon to an explosion on your stovetop. But why do these r
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04:36 Popular
Should We Be Looking For Life Elsewhere In The Universe? - Aomawa Shields

933 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/should-we-be-looking-for-life-elsewhere-in-the-universe-aomawa-shields As the number of “potentially habitable” planets that astronomers find continues to rise, we seem ever closer to answering the question, “Ar
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05:10 Popular
The power of creative constraints - Brandon Rodriguez

2,113 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/the-power-of-creative-constraints-brandon-rodriguez Imagine you were asked to invent something new. It could be whatever you want, made from anything you choose, in any shape or size. That kind of creative freed
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04:04 Popular
Sugar: Hiding In Plain Sight - Robert Lustig

778 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/sugar-hiding-in-plain-sight-robert-lustig While sugar is easy to spot in candy, soft drinks and ice cream, it also hides out in foods you might not expect -- including peanut butter, pasta sauce and even bologna
04:08 Popular
How Mucus Keeps Us Healthy - Katharina Ribbeck

756 views / 2 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-mucus-keeps-us-healthy-katharina-ribbeck Your body produces more than a liter of mucus every day, and when you’re sick, it can be hard to miss. But what exactly is mucus? And what does it do, besides making
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03:14 Popular
When To Use Apostrophes - Laura McClure

736 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/when-to-use-apostrophes-laura-mcclure It’s possessive. It’s often followed by S’s. And it’s sometimes tricky when it comes to its usage. It’s the apostrophe. Laura McClure gives a refresher on when to use apostr
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05:31
Newtons three-body problem explained - Fabio Pacucci

319 views / 0 likes - added 3 years ago

Download a free audiobook version of "The Three-Body Problem" and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed --In 2009, researchers ran a simple experiment. They took everything we know about our solar system and calculated where e
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What cameras see that our eyes don't - Bill Shribman

649 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/what-cameras-see-that-our-eyes-don-t-bill-shribman Our eyes are practically magical, but they cannot see everything. For instance, the naked eye cannot see the moment where all four of a horse's legs are in the
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How do cigarettes affect the body? - Krishna Sudhir

581 views / 3 likes - added 5 years ago

Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/how-do-cigarettes-affect-the-body-krishna-sudhir Cigarettes aren’t good for us. That’s hardly news -- we’ve known about the dangers of smoking for decad
04:32 Popular
The Chemistry Of Cold Packs - John Pollard

781 views / 0 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/how-do-cold-packs-get-cold-so-fast-john-pollard If you stick water in the freezer, it will take a few hours to freeze into ice. How is it, then, that cold packs go from room temperature to near freezing in mere
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04:54 Popular
The Akune Brothers: Siblings On Opposite Sides Of War - Wendell Oshiro

883 views / 2 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-akune-brothers-siblings-on-opposite-sides-of-war-wendell-oshiro There are many stories that can be told about World War II, from the tragic to the inspiring. But perhaps one of the most heart-rending experie
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03:50
Defining Cyberwarfare...in Hopes Of Preventing It - Daniel Garrie

696 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/defining-cyberwarfare-in-hopes-of-preventing-it-daniel-garrie Can you imagine a future where wars are fought not with bombs and bullets but computer viruses and pacemaker shutdowns? Cyberware is unique in that i
04:45 Popular
The History Of Marriage - Alex Gendler

878 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-history-of-marriage-alex-gendler A white, puffy dress. Eternal love. A joint tax return. Marriage means something different to everyone and has changed over time and across cultures. Alex Gendler traces the
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How Do We Know What Color Dinosaurs Were? - Len Bloch

1,205 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-do-we-know-what-color-dinosaurs-were-len-bloch The microraptor was a four-winged carnivorous dinosaur with iridescent black feathers. But if our information about this dinosaur comes from fossils, how can we
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04:28 Popular
Why are there so many types of apples? - Theresa Doud

846 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/why-are-there-so-many-types-of-apples-theresa-doud Have you ever walked into a grocery store and wondered where all the varieties of apples came from? You might find SnapDragon, Pixie Crunch, Cosmic Crisp, Jazz,
03:42 Popular
How Do Scars Form? - Sarthak Sinha

739 views / 2 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/how-do-scars-form-sarthak-sinha It’s hard to escape childhood without racking up a few scars. Why do these leftover reminders of a painful cut or crash look different from the rest of our skin? And why do they s
04:05 Popular
If Superpowers Were Real: Super Strength - Joy Lin

899 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/if-superpowers-were-real-super-strength-joy-lin What if super strength wasn't just the stuff of epic comic book stories? Is it scientifically possible to be super strong? In this series, Joy Lin tackles six supe
04:51 Popular
If Superpowers Were Real: Super Speed - Joy Lin

935 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/if-superpowers-were-real-super-speed-joy-lin What if super speed wasn't just the stuff of epic comic book stories? Is it scientifically possible to be super speedy? In this series, Joy Lin tackles six superpower
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Mysteries Of Vernacular: Gorgeous - Jessica Oreck And Rachael Teel

569 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/mysteries-of-vernacular-gorgeous-jessica-oreck-and-rachael-teel From whirlpools and ravines to superlative beauty, what is the trajectory of the word gorgeous? Jessica Oreck and Rachael Teel reveal the surprisin
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What's Wrong With Our Food System - Birke Baehr

705 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/what-s-wrong-with-our-food-system-birke-baehr 11-year-old Birke Baehr presents his take on a major source of our food -- far-away and less-than-picturesque industrial farms. Keeping farms out of sight promotes a
04:33 Popular
How Smart Are Orangutans? - Lu Gao

730 views / 1 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-smart-are-orangutans-lu-gao Along with humans, orangutans belong to the Hominidae family tree, which stretches back 14 million years. But it’s not just their striking red hair that makes orangutans unique am
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09:10 Popular
The Case for Performance Art | The Art Assignment | PBS Digital Studios

850 views / 1 likes - added 6 years ago

Dubious of performance art? Break into a cold sweat when you realize it’s about to begin? There’s a reason. Here we present you with a brief history of performance art and attempt to sway you to its potential charms. Let us know if you buy it. The paintin
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The Otherworldly Creatures In The Ocean's Deepest Depths - Lidia Lins

1,080 views / 3 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-otherworldly-creatures-in-the-ocean-s-deepest-depths-lidia-lins About 60 percent of the ocean is a cold, dark region that spans down to 11,000 meters. This zone is known as the deep ocean, and though it seem
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Should we eat bugs? - Emma Bryce

213 views / 0 likes - added 2 years ago

View full lesson: http://ed.ted.com/lessons/should-we-eat-bugs-emma-bryce What's tasty, abundant and high in protein? Bugs! Although less common outside the tropics, entomophagy, the practice of eating bugs, was once extremely widespread throughout cultur
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Why Do Buildings Fall In Earthquakes? - Vicki V. May

1,474 views / 5 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/why-do-buildings-fall-in-earthquakes-vicki-v-may Earthquakes have always been a terrifying phenomenon, and they’ve become more deadly as our cities have grown — with collapsing buildings posing one of the larges
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04:53 Popular
Why Is Mount Everest So Tall? - Michele Koppes

1,410 views / 6 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/why-is-mount-everest-so-tall-michele-koppes At 8,850 meters above sea level, Qomolangma, also known as Mount Everest, has the highest altitude on the planet. But how did this towering formation get so tall? Mich
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04:34 Popular
What makes a hero? - Matthew Winkler

804 views / 2 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/what-makes-a-hero-matthew-winkler What trials unite not only Harry Potter or Frodo Baggins but many of literature's most interesting heroes? And what do ordinary people have in common with these literary heroes?

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