TED-Ed

View full lesson: http://ed.ted.com/lessons/how-heavy-is-air-dan-quinn

Uploaded 07-07-14

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 describes the fundamentals of air pressure and explains how it affects our bodies, the weather and the universe at large.

Lesson by Dan Quinn, animation by Sandro Katamashvili.



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Hans Rosling had a question: Do some religions have a higher birth rate than others -- and how does this affect global population growth? Speaking at the TEDxSummit in Doha, Qatar, he graphs data over time and across religions. With his trademark humor and sharp insight, Hans reaches a surprising conclusion on world fertility rates.

Uploaded 21-08-13

Talk by Hans Rosling.



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View full lesson: http://ed.ted.com/lessons/how-to-sequence-the-human-genome-mark-j-kiel

Uploaded 09-12-13

Your genome, every human's genome, consists of a unique DNA sequence of A's, T's, C's and G's that tell your cells how to operate. Thanks to technological advances, scientists are now able to know the sequence of letters that makes up an individual genome relatively quickly and inexpensively. Mark J. Kiel takes an in-depth look at the science behind the sequence.

Lesson by Mark J. Kiel, animation by Marc Christoforidis.



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Throughout the history of Islam, says journalist Bobby Ghosh, there have been two sides to jihad: one, internal, a personal struggle to be better, the other external. A small minority (most recently Osama bin Laden) has appropriated the second, using it as an excuse for deadly global violence against "the West." Ghosh suggests that, now that bin Laden's worldwide organization has fragmented, it's time to reclaim the word. (Filmed at TEDxGeorgetown.)

Talk by Bobby Ghosh.

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Dig into what circumstances allow for an accidentally amputated limb to be reattached, and what options you have when it can't be.

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In order to reattach a severed limb after an accident, a number of things need to go right— and quickly. A clean cut, properly preserving the limb, and getting it to a skilled surgeon in time are just a few of these challenges. And unfortunately, there are countless complications that come up with most accidental amputations. So, when is limb reattachment possible? Jason Hoellwarth investigates.

Lesson by Jason Hoellwarth, directed by Denys Spolitak.

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View full lesson: https://ed.ted.com/lessons/can-you-reattach-a-severed-limb-jason-hoellwarth
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Animator's website: https://vimeo.com/denysspolitak
Music: https://www.workplaywork.com
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View full lesson: http://ed.ted.com/lessons/the-happy-secret-to-better-work-shawn-achor

We believe that we should work to be happy, but could that be backwards? In this fast-moving and entertaining talk, psychologist Shawn Achor argues that actually happiness inspires productivity. (Filmed at TEDxBloomington.)

Talk by Shawn Achor.

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Follow Quexo, a Peruvian shaman, as he searches for cinnabar to complete a special ritual that will protect his village from winter storms.

Uploaded 04-06-20

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The year is 1400 BCE. At the temple of the fisherman, the morning is unusually still and this is just the latest in a series of troubling signs for Quexo, the village shaman. The villagers live off the sea, but this year the winds have died and the fish have dwindled. He’s seen this before— his only hope to fix it is a special ritual. Gabriel Prieto outlines a day in the life of a Peruvian shaman.

Lesson by Gabriel Prieto, directed by Globizco Studios.

Animator's website: http://www.globizcostudios.com
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View full lesson: https://ed.ted.com/lessons/a-day-in-the-life-of-an-ancient-peruvian-shaman-gabriel-prieto

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Examine the myth of the Lost Cause: a campaign created by pro-Confederates after the Civil War to promote the lie that they seceded for state's rights.

Uploaded 25-02-21

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In the 1860’s, 11 southern states withdrew from the United States and formed the Confederacy. They seceded in response to the growing movement for the nationwide abolition of slavery. Yet barely a year after the Civil War ended, southern sources began claiming the conflict was about state’s rights. How did this revisionist history come about? Karen L. Cox examines the cultural myth of the Lost Cause.

Lesson by Karen L. Cox, directed by Anton Bogaty.

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View full lesson: https://ed.ted.com/lessons/debunking-the-myth-of-the-lost-cause-a-lie-embedded-in-american-history-karen-l-cox
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Animator's website: https://www.instagram.com/anton_bogaty/
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Dig into how bed bugs establish a colony in your home, and find out what makes it so hard to prevent these itchy invasions.

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Bed bugs have tormented humans for millennia, so detested that their mere mention can make hearts race and arms itch. There are approximately 100 species of bed bugs, but thankfully only three of them feed on humans. So, why are these unwelcome houseguests so difficult to defeat? And is there any way to get rid of them for good? Gale E. Ridge investigates the tremendous staying power of bed bugs.

Lesson by Gale E. Ridge, directed by Devin Clark, Augenblick Studios.

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Learn about the life of Bayard Rustin, a leader in the Civil Rights Movement, a gay rights activist, and one of Martin Luther King’s closest advisors.

Uploaded 21-02-19

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In 1963, Martin Luther King Jr. delivered his “I Have a Dream” speech at the March on Washington to nearly a quarter million people. None of it would have been possible without the march’s chief organizer – a man named Bayard Rustin. Christina Greer details his life of advocacy as a leader in the Civil Rights Movement, and the challenges he faced as an openly gay Black man.

Lesson by Christina Greer, directed by Anton Bogaty.

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View full lesson: https://ed.ted.com/lessons/an-unsung-hero-of-the-civil-rights-movement-christina-greer

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