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The World's Roundest Object (and Why it Exists)
lesson duration 11:44
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Forget shopping. Soon you'll download your new clothes
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How a few scientists transformed the way we think about disease
lesson duration 04:39
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The incredible collaboration behind the International Space Station
lesson duration 04:58
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What's the difference between accuracy and precision?
lesson duration 04:53
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562,292 views
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