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Carl Sagan: Travel at light speed

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Published on Nov 9, 2011

Another Carl Sagan video for you!
This time about travelling near the speed of light and the theory of relativity.

Words of Sagan:
"As strange and counterintuitive as it seems, time dilation is a law of nature".

From the 8th episode of Carl Sagan's Cosmos, called "Travels in space and time".

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