The Marimba Virtuoso’s Desktop Planetarium
Cars That Think
OCTOBER 1, 2023
On 21 April 1962, the Seattle World’s Fair opened to the public. government committed US $9 million to help build a NASA-themed science exhibit at the Seattle World’s Fair. Traditional orreries were mechanical models of the solar system. The fair’s iconic landmark was the Space Needle. What is an orrery?
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