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Energy, the Pyramids, and the Unfortunate Truth About Space Travel


thisregistrationsucks

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http://what-if.xkcd.com/95/

"What took more energy, the building of the Great Pyramid of Giza or the Apollo Mission? If we could convert the energy to build the Great Pyramid, would it be enough to send a rocket to the Moon and back?"

An interesting application for the work energy theorem.

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