TED-Ed

Discover the engineering innovations that made building Burj Khalifa, the world’s tallest skyscraper, possible.

Uploaded 20-04-21

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In 2004, construction began on a new building in Dubai, promising a revolutionary design that would dwarf the rest of the world’s skyscrapers. Five years later, the 828-meter Burj Khalifa was complete, surpassing the previous record-holder by over 60%. What innovations allowed for such a huge leap in height? Alex Gendler digs into the architecture of this unprecedented project.

Lesson by Alex Gendler, directed by WOW-HOW Studio.

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View full lesson: https://ed.ted.com/lessons/how-the-world-s-tallest-skyscraper-was-built-alex-gendler
Dig deeper with additional resources: https://ed.ted.com/lessons/how-the-world-s-tallest-skyscraper-was-built-alex-gendler#digdeeper

Animator's website: https://wow-how.com/
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Dig into the history of pandemics to learn how viruses and disease spreads and what we can do to stop future outbreaks.

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In our increasingly globalized world, a single infected person can board a plane and spread a virus across continents. Mark Honigsbaum describes the history of pandemics and how that knowledge can help halt future outbreaks.

Lesson by Mark Honigsbaum, directed by Patrick Blower.

Animator's website: http://www.patrickblower.com
Educator's website: http://www.markhonigsbaum.co.uk
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View full lesson: http://ed.ted.com/lessons/how-pandemics-spread

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Why aren’t commercial flights getting faster? Dig into the technological and environmental problems facing supersonic flight.

Uploaded 15-04-21

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In 1996, a British Airways plane flew from New York to London in a record-breaking two hours and fifty-three minutes. Today, however, passengers flying the same route can expect to spend no less than six hours in the air — twice as long. So why, in a world where everything seems to be getting faster, have commercial flights lagged behind? Alex Gendler details the problems facing supersonic flight.

Lesson by Alex Gendler, directed by Zedem Media.

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View full lesson: https://ed.ted.com/lessons/why-are-airplanes-slower-than-they-used-to-be-alex-gendler
Dig deeper with additional resources: https://ed.ted.com/lessons/why-are-airplanes-slower-than-they-used-to-be-alex-gendler#digdeeper

Animator's website: https://www.zedemanimations.com/
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View full lesson: http://ed.ted.com/lessons/why-are-manhole-covers-round-marc-chamberland

Uploaded 13-04-15

Why are most manhole covers round? Sure it makes them easy to roll, and slide into place in any alignment. But there’s another, more compelling reason, involving a peculiar geometric property of circles and other shapes. Marc Chamberland explains curves of constant width and Barbier’s theorem.

Lesson by Marc Chamberland, animation by Pew36 Animation Studios.



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View full lesson: http://ed.ted.com/lessons/what-s-below-the-tip-of-the-iceberg-camille-seaman

Uploaded 24-07-13

It's a well-known fact that the majority of an iceberg lies below the surface -- but just as stealthily hidden are their fascinating qualities. Traveling the seas, teeming with life, and sometimes even making a noise called "bergie seltzer," there's so much more than meets the eye. Camille Seaman gives homage to these icy isles.

Lesson by Camille Seaman, animation by Bottomless Well Films.



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In Western society, bats are often characterized as creepy, even evil. Zoologist Emma Teeling encourages us to rethink our attitude toward bats, whose unique and fascinating biology gives us insight into our own genetic makeup. (Filmed at TEDxDublin.)

Talk by Emma Teeling.

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In her talk, longtime English teacher Patricia Ryan asks a provocative question: Is the world's focus on English preventing the spread of great ideas in other languages? (For instance: what if Einstein had to pass the TOEFL?) It's a passionate defense of translating and sharing ideas. (Filmed at TEDxDubai.)

Uploaded 25-07-13

Talk by Patricia Ryan.



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Take a look at the theories behind why earthquakes occur, what makes them so hard to predict and the warning system technologies we rely on today.

Uploaded 08-04-19

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In 132 CE, Zhang Heng presented his latest invention: a large vase he claimed could tell them whenever an earthquake occurred for hundreds of miles. Today, we no longer rely on pots as warning systems, but earthquakes still offer challenges to those trying to track them. Why are earthquakes so hard to anticipate, and how could we get better at predicting them? Jean-Baptiste P. Koehl investigates.

Lesson by Jean-Baptiste P. Koehl, directed by Cabong Studios.

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View full lesson: https://ed.ted.com/lessons/why-are-earthquakes-so-hard-to-predict-jean-baptiste-p-koehl

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Uploaded 30-04-18

View full lesson: https://ed.ted.com/lessons/which-is-stronger-glue-or-tape-elizabeth-cox

The oldest glue in the world is over 8,000 years old and comes from a cave near the Dead Sea. Today, we have enough types of tape and glue to build and repair almost anything. But what gives glue and tape their stickiness? And is one stronger than the other? Elizabeth Cox explores the world of adhesives.

Lesson by Elizabeth Cox, animation by Sinbad Richardson.

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View full lesson: http://ed.ted.com/lessons/mysteries-of-vernacular-dynamite-jessica-oreck-and-rachael-teel

With an explosive meaning, the word dynamite's past is as historical as it is etymological. Jessica Oreck and Rachael Teel describe how Alfred Nobel invented dynamite.

Lesson by Jessica Oreck and Rachael Teel, animation by Jessica Oreck.

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