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What we can learn from galaxies far, far away - Henry Lin

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In a fun, excited talk, teenager Henry Lin looks at something unexpected in the sky: galaxy clusters. By studying the properties of the universe's largest pieces, says the Intel Science Fair winner, we can learn quite a lot about our own world and galaxy.

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Henry attempts to explain (somewhat quantitatively) the very basics of cosmology and what it means for the universe to be expanding in less than three minutes here.Here are two excellent videos (here, and here) that further explain dark matter and dark energy:Here is a particularly amazing galaxy cluster discovered by Henry Lin's mentor. The rate at which stars are forming in this galaxy cluster is unprecedented.
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How is science, as it is done by living, breathing scientists, different from the impression of science that is sometimes given in textbooks?
02/25/2014 • 
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Reflect upon the quote by Henry Ford: “If I had asked people what they wanted, they would have said faster horses.” Besides cars, what other technologies does this quote apply to?
02/25/2014 • 
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TED-Ed Original lessons feature the words and ideas of educators brought to life by professional animators. Are you an educator or animator interested in creating a TED-Ed original? Nominate yourself here »

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