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Sending a sundial to Mars - Bill Nye

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 Astronomy   |   Science
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View full lesson: http://ed.ted.com/lessons/sending-a-sundial-to-mars-bill-nye

Bill Nye, otherwise known as The Science Guy, inherited his father's fascination with sundials. And so he campaigned to have sundials aboard the Spirit and Opportunity Mars exploration rovers. A look at how a small device reveals big implications as to our place in space.

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