Earth Sciences 1086F/G Lecture Notes - Lecture 4: Spheroid, White Dwarf, Solar Maximum Mission
13 Oct 2017
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Plato/pythagorus: developed in 530 bc by pythagorus who pictured the earth as stationary object in space surrounded by a sphere which contained everything else, which rotated slowly. East at speeds depending on how far they were from. Earth: 100 years later, plato tried to recreate it but it didn"t end up any better. Aristarchus: experimented with placing the sun at the center but never attempted to promote his model, spent his time in the great library at alexandria (egypt) in 310-230 bc. Tycho brahe: 1546-1601 kidnapped by uncle to become lawyer. In 1572, he witnessed a supernova, which didn"t move its location no matter where you were in europe which led him to believe it was very far away, further than any of the cosmos models suggested. This force had to be magnetic, but he had no proof: gravity had not yet been discovered, so he thought the planets were moved into orbit by angels , 3 laws, 1.
