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Genius by Stephen Hawking
Smartphone and Tablet Models of the Galaxies
The volunteers tackle their next challenge: If we could fit our galaxy on a smart phone and Andromeda on a tablet, how far apart would they be? They work out how far away the two galaxies are from each other with some simple math and can visually see how far the nearest galaxy is to our Milky Way.
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54:41
Three volunteers set out to find an amazing realization about the nature of life itself.
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54:41
The group experiments with cars and balloons to understand the origin of the universe.
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54:40
Stephen Hawking sets three challenges to find out if we could be time travelers.