Monday, July 31, 2006
Geodesic Dome: How Products are Made: "In 1919, seeking a way to build a larger planetarium, German engineer Walter Bauersfeld decided to mount movable projectors within a stationary dome. Until that time, planetarium domes rotated while external light entered through holes on the dome shell to simulate stars and planets. This limited the practical size of the dome and the number of people it could hold."
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