TED-Ed youtube.com

The history of the world according to rats - Max G. Levy

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One of the most controversial medical procedures in history - Jenell Johnson

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The dark history of arsenic - Neil Bradbury

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A day in the life of a martial artist in medieval China - Peter Lorge

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Do you really need to take 10,000 steps a day? - Shannon Odell

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How some friendships last — and others don’t - Iseult Gillespie

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Why animals help each other - Ashley Ward

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Lady Meng Jiang: The legend of the woman who outwitted an evil emperor - Juwen Zhang

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How to make your stress work for you - Shannon Odell

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How scientists are creating real-life invisibility cloaks - Max G. Levy

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How are these fires burning underground? - Emma Bryce

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Why don’t companies want you to repair your stuff? - Aaron Perzanowski

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What staying up all night does to your brain - Anna Rothschild

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