TED-Ed

When faced with a parent suffering from Alzheimer's, most of us respond with denial ("It won't happen to me") or extreme efforts at prevention. But global health expert and TED Fellow Alanna Shaikh sees it differently. She's taking three concrete steps to prepare for the moment -- should it arrive -- when she herself gets Alzheimer's disease.

Uploaded 28-06-13

Talk by Alanna Shaikh



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You use paper towels to dry your hands every day, but chances are, you're doing it wrong. In this enlightening and funny short talk, Joe Smith reveals the trick to perfect paper towel technique. (Filmed at TEDxConcordiaUPortland.)

Uploaded 21-08-13

Talk by Joe Smith.



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View full lesson: http://ed.ted.com/lessons/what-makes-tattoos-permanent-claudia-aguirre

Uploaded 10-07-14

The earliest recorded tattoo was found on a Peruvian mummy in 6,000 BC. That's some old ink! And considering humans lose roughly 40,000 skin cells per hour, how do these markings last? Claudia Aguirre details the different methods, machines and macrophages (you'll see) that go into making tattoos stand the test of time.

Lesson by Claudia Aguirre, animation by TOGETHER.



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View full lesson: http://ed.ted.com/lessons/patricia-burchat-sheds-light-on-dark-matter

Physicist Patricia Burchat sheds light on two basic ingredients of our universe: dark matter and dark energy. Comprising 96% of the universe between them, they can't be directly measured, but their influence is immense.

Talk by Patricia Burchat.

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Dig into the close relationship between figs and wasps, and find out if it's normal and safe for bugs to be in our food.

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In 2023, a US grocer recalled over 10,000 cases of broccoli-cheddar soup over concerns they contained too much of an unintended ingredient. That ingredient? Bugs. We know insects regularly come into contact with our food— but how many are you actually eating? And is it okay? Carolyn Beans takes a look at figs and their conspicuously close bond with wasps.

Lesson by Carolyn Beans, directed by Denys Spolitak.

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View full lesson: https://ed.ted.com/lessons/are-there-really-dead-wasps-in-figs-carolyn-beans
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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/clay-shirky-how-social-media-can-make-history

While news from Iran streams to the world, Clay Shirky shows how Facebook, Twitter, and TXTs help citizens in repressive regimes report on real news, bypassing censors (however briefly). The end of top-down control of news is changing the nature of politics.

Talk by Clay Shirky.

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Is our reality a detailed computer simulation? And how can we know for sure? Explore the scientific and philosophical theories surrounding this debate.

Uploaded 08-10-19

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All life on Earth— living and inanimate, microscopic and cosmic— is governed by mathematical laws with apparently arbitrary constants. And this opens up a question: If the universe is completely governed by these laws, couldn’t a powerful enough computer simulate it exactly? Could our reality actually be a detailed simulation set in place by a more advanced civilization? Zohreh Davoudi investigates.

Lesson by Zohreh Davoudi, directed by Eoin Duffy.

Animator's website: https://eoinduffy.me
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View full lesson: https://ed.ted.com/lessons/are-we-living-in-a-simulation-zohreh-davoudi

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The only way into the world’s most exclusive club is to solve a challenge from the Demon of Reason. Can you get into the party?

Uploaded 23-02-21

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Once a year, thousands of logicians descend into the desert for Learning Man. At the center of that gathering is the world’s most exclusive club, where under the full moon the annual logician’s rave takes place. The entry is guarded by the Demon of Reason, and the only way in is to solve one of his dastardly challenges. Can you get into the rave? Edwin Meyer shows how.

Lesson by Edwin Meyer, directed by Artrake Studio.

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Animator's website: https://www.artrake.com/​
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Today's math curriculum is teaching students to expect -- and excel at -- paint-by-numbers classwork, robbing kids of a skill more important than solving problems: formulating them. In his talk, Dan Meyer shows classroom-tested math exercises that prompt students to stop and think. (Filmed at TEDxNYED.)

Uploaded 01-08-13

Talk by Dan Meyer.



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View full lesson: http://ed.ted.com/lessons/beware-of-nominalizations-aka-zombie-nouns-helen-sword

Few mistakes sour good writing like nominalizations, or, as Helen Sword likes to call them, zombie nouns. Zombie nouns transform simple and straightforward prose into verbose and often confusing writing. Keep your nouns away from the elongating nominalizations!

Lesson by Helen Sword, animation by Bran Dougherty-Johnson.

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