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Mythbusters - Thermite vs Ice
Posted 15 years ago by frantolo in category: science   Comments (1)

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Alka-Seltzer added to spherical water drop in space
Posted 14 years ago by monster2 in category: science   Comments (0)

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Hypothetical Perpetual Motion Machines
Posted 11 years ago by boyt in category: science   Comments (0)

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How an atomic clocks works, and its use in the global positioning system (GPS)
Posted 12 years ago by Janko in category: science   Comments (0)

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Carl Sagan explains how Eratostenes knew the earth was curved
Eratostenes was a Greek mathematician living 2200 years ago.
Posted 7 years ago by boyt in category: science   Comments (0)