NATS 1745 Lecture Notes - Lecture 12: Deferent And Epicycle, Firmament, Armillary Sphere
9 Oct 2017
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Document Summary
Postulated heliocentric rather than geocentric model of the universe. Original version: planets move/revolve around the sun (revolve) with uniform circular. Studied in poland and later in italy studied medicine, geography, astrology and astronomy. Around 1514- church wanted calendar reform to better predict timings for church festivals. Ptolemy"s model for the solar system was more + more inaccurate. The sun is in the centre that is what the book explains. Planets named in latin moving around the sun. The greeks also had the idea of the sun centered universe. Copernicus invented the solar system (more accurate system) There should be a simplified version of ptolemy. It is to hard to understand the system. Sun in the middle and perfect circles around. The earth spins at high speed at revolves around the sun. He could explain the spin and orbit motion. He was accused of haracey and placed under house arrest.
