TED-Ed

Dig into the Chinese Exclusion Act of 1882, which suspended Chinese immigration to the U.S. and blocked Chinese immigrants from citizenship.

Uploaded 01-07-21

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In 1882, the United States Congress passed the Chinese Exclusion Act, the first federal law that restricted immigration based explicitly on nationality. In practice, the Act banned entry to all ethnically Chinese immigrants besides diplomats, and prohibited existing immigrants from obtaining citizenship. Robert Chang details the lasting impact the Act had on immigrant rights and freedoms.

Lesson by Robert Chang, directed by Mohammad Babakoohi and Yijia Cao.

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View full lesson: https://ed.ted.com/lessons/the-dark-history-of-the-chinese-exclusion-act-robert-chang
Dig deeper with additional resources: https://ed.ted.com/lessons/the-dark-history-of-the-chinese-exclusion-act-robert-chang#digdeeper
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Dig into why jellyfish populations have increased, and how leatherback sea turtles can help get their numbers under control.

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Over the past two decades, jellyfish have begun to overwhelm our oceans. If things stay on their current trajectory, we could be headed for a future where the entire ocean is thick with jellyfish. So, is there anything that can keep these gelatinous creatures under control? Mariela Pajuelo and Javier Antonio Quinones take a look at the jellyfish’s most ancient predator.

Lesson by Mariela Pajuelo and Javier Antonio Quinones, directed by Sinan Göksel, Emre Kanlıoğlu, Studio Big Box.

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View full lesson: https://ed.ted.com/lessons/the-one-thing-stopping-jellyfish-from-taking-over-mariela-pajuelo-javier-antonio-quinones
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Animator's website: https://www.studiobigbox.com
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View full lesson: http://ed.ted.com/lessons/how-many-ways-can-you-arrange-a-deck-of-cards-yannay-khaikin

Uploaded 27-03-14

One deck. Fifty-two cards. How many arrangements? Let's put it this way: Any time you pick up a well shuffled deck, you are almost certainly holding an arrangement of cards that has never before existed and might not exist again. Yannay Khaikin explains how factorials allow us to pinpoint the exact (very large) number of permutations in a standard deck of cards.

Lesson by Yannay Khaikin, animation by The Moving Company Animation Studio.



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Download a free audiobook version of "The Hitchhiker's Guide to the Galaxy" and support TED-Ed's nonprofit mission: https://adbl.co/2xqDYxY

Uploaded 20-09-18

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View full lesson: https://ed.ted.com/lessons/could-the-earth-be-swallowed-by-a-black-hole-fabio-pacucci

From asteroids capable of destroying entire species to supernovae that could exterminate life on Earth, outer space has no shortage of forces that could wreak havoc on our planet. But there’s something in space that is even more terrifying than any of these -- something that wipes out everything it comes near. Fabio Pacucci examines the probability of Earth being gobbled up by a black hole.

Lesson by Fabio Pacucci, directed by Astroplastique.

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View full lesson: http://ed.ted.com/lessons/how-is-power-divided-in-the-united-states-government-belinda-stutzman

Article II of the United States Constitution allows for three separate branches of government (legislative, executive, and judicial), along with a system of checks and balances should any branch get too powerful. Belinda Stutzman breaks down each branch and its constitutionally-entitled powers.

Lesson by Belinda Stutzman, animation by Johnny Chew.

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View full lesson: http://ed.ted.com/lessons/how-does-an-atom-smashing-particle-accelerator-work-don-lincoln

An atom smasher, or particle accelerator, collides atomic nuclei together at extremely cold temperatures, very low air pressure, and hyperbolically fast speeds. Don Lincoln explains how scientists harness the power of both electric and magnetic fields to smash atoms, eventually leading to major discoveries about the matter in our universe.

Lesson by Don Lincoln, animation by Sputnik Animation.

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Explore how solar units can help you save money on energy costs, and the most common challenges of switching to solar power.

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Today in many countries solar is the cheapest form of energy to produce. Millions of homes are equipped with rooftop solar, with most units paying for themselves in their first seven to 12 years and then generating further savings. So, how much money can you save by switching to solar? Shannon Odell shares how solar units could help pave the way for a cleaner and more reliable energy future.

Lesson by Shannon Odell, directed by Biljana Labović.

This video made possible in collaboration with Speed & Scale
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A special thanks to Eric O'Shaughnessy who provided information and insights for the development of this video.

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TED Fellow Lucy McRae is a body architect -- she imagines ways to merge biology and technology in our own bodies. In this visually stunning talk, she shows her work, from clothes that recreate the body's insides for a music video with pop-star Robyn, to a pill that, when swallowed, lets you sweat perfume.

Talk by Lucy McRae.

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Practice more problem-solving at https://brilliant.org/TedEd/
Solution to Bonus Riddle: https://brilliant.org/TedEd3ColorCube/

Uploaded 24-09-18

Your team has developed a probe to study an alien monolith. It needs protective coatings — in red, purple or green — to cope with the environments it passes through. Can you figure out how to apply the colors so the probe survives the trip? Dan Finkel shows how.

Lesson by Dan Finkel, directed by Anton Trofimov.

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Nobel Peace Prize winner Leymah Gbowee has two powerful stories to tell -- of her own life's transformation and of the untapped potential of girls around the world. Can we transform the world by unlocking the greatness of girls?

Uploaded 12-07-13

Talk by Leymah Gbowee.



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