TED-Ed

View full lesson here: http://ed.ted.com/lessons/scott-kennedy-how-to-prove-a-mathematical-theory

Euclid of Alexandria revolutionized the way that mathematics is written, presented or thought about, and introduced the concept of mathematical proofs. Discover what it takes to move from a loose theory or idea to a universally convincing proof.

Lesson by Scott Kennedy, animation by Karrot Animation.

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Why do we ever stop playing and creating? With charm and humor, celebrated Korean author Young-ha Kim invokes the world's greatest artists to urge you to unleash your inner child -- the artist who wanted to play forever. (Filmed at TEDxSeoul.)

Talk by Young-ha Kim.

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View full lesson: http://ed.ted.com/lessons/defining-cyberwarfare-in-hopes-of-preventing-it-daniel-garrie

Uploaded 20-08-13

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 it is not covered by existing legal framework and it often inspires more questions than we are yet capable of answering. Daniel Garrie ponders some of the practical and ethical dilemmas that may pop up as we progress towards our uncertain future.

Lesson by Daniel Garrie, animation by Brett Underhill.



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Get to know the science behind what causes the stiff, creaky joints of the most common forms of arthritis and what you can do to prevent it.

Uploaded 07-11-19

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The bad backs, elbow pain, and creaky knees so common in older people often aren't just “old age.” In fact, the source of this stiffness plagues many young people as well. The culprit is arthritis: a condition that affects over 90 million people in the U.S. alone. What makes arthritis so pervasive, and why haven’t we found a cure for it? Kaitlyn Sadtler and Heather J. Faust investigate.

Lesson by Kaitlyn Sadtler and Heather J. Faust, directed by CUB Animation.

Animator's website: https://www.cubanimation.com
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View full lesson: https://ed.ted.com/lessons/why-haven-t-we-cured-arthritis-kaitlyn-sadtler-and-heather-j-faust

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Dig into the Greek myth of Persephone, who is abducted by Hades and is only allowed to leave the underworld every spring.

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One day, Persephone was frolicking in a meadow with the nymph, Cyane. As they admired a flower, they noticed it tremble in the ground. Suddenly, the earth split, and a terrifying figure arose. It was Hades, god of the underworld. He wrenched Persephone from Cyane, dragged her into his inky chariot, and blasted back through the earth. Iseult Gillespie shares the myth of the goddess of spring.

Lesson by Iseult Gillespie, directed by KERO Animation Studio.

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View full lesson: https://ed.ted.com/lessons/the-myth-of-hades-and-persephone-iseult-gillespie
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Explore what we know about seasonal affective disorder (SAD), and find out the best way to treat these behavioral changes.

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As winter approaches, shorter days spark a cascade of changes within the brains of animals. As a result, groundhogs retreat to their burrows for hibernation, weasels’ coats turn from brown to white, and birds cease their singing. And scientists are finding that seasonal behavioral changes similarly happen for some humans. Kelly Rohan digs into what we know about seasonal affective disorder.

Lesson by Kelly Rohan, directed by Avi Ofer.

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View full lesson: https://ed.ted.com/lessons/how-to-tell-if-you-have-seasonal-affective-disorder-kelly-rohan
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View full lesson: http://ed.ted.com/lessons/jessica-wise-how-fiction-can-change-reality

Reading and stories can be an escape from real life, a window into another world -- but have you ever considered how new fictional experiences might change your perspective on real, everyday life? From "Pride and Prejudice" to Harry Potter, learn how popular fiction can spark public dialogue and shape culture.

Lesson by Jessica Wise, narration by Emilie Soffe, animation by Augenblick Studios.

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As Numberland’s best detective, you thought you’d seen it all. But the desiccated corpses of prominent natural numbers have been showing up all over the city. A lockdown is ordered from sundown to sunrise, and it’s still not enough to stop what can only be described as a vampiric feeding frenzy. Can you figure out why the citizens of Numberland are being attacked? Henri Picciotto shows how.

Lesson by Henri Picciotto, directed by Igor Coric, Artrake Studio.

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View full lesson: https://ed.ted.com/lessons/can-you-solve-the-feeding-frenzy-riddle-henri-picciotto
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Deep brain stimulation is becoming very precise. This technique allows surgeons to place electrodes in almost any area of the brain, and turn them up or down -- like a radio dial or thermostat -- to correct dysfunction. Andres Lozano offers a dramatic look at emerging techniques, in which a woman with Parkinson's instantly stops shaking and brain areas eroded by Alzheimer's are brought back to life. (Filmed at TEDxCaltech.)

Talk by Andres Lozano.

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Learn about the life and tragic death of gay rights pioneer Harvey Milk, California’s first openly gay public official.

Uploaded 12-03-19

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By 1973, Harvey Milk had already been many things: naval officer, high school teacher, bit-part actor and wandering hippie. Starting fresh in San Francisco, his belief in a more personal approach to local government led him to run for office in the heart of American gay culture, the Castro. Lillian Faderman details the tenacity and courage of California's first openly gay public official.

Lesson by Lillian Faderman, directed by Tomás Pichardo-Espaillat.

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View full lesson: https://ed.ted.com/lessons/harvey-milk-s-radical-vision-of-equality-lillian-faderman

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