NATS 1730 Study Guide - Final Guide: Phlogiston Theory, Chemical Affinity, Thomas Harriot

• School: York University
• Department: Natural Science
• Course: NATS 1730
• Professor: Ernst Hamm

Document Summary

Methods (new methods) trying to understand the world. Earth surrounded by a circle of fixed stars. Explaining the motions in terms of perfect circles. Epicycle (trying to account for retrograde motions), defferent. Also many christian and jews in the caliphate. Islamic science reached its high point in the 18th 19th century. Cannot through observations show that earth is in a state of rest: copernicus. He rejected geocentrism proposes very strongly heliocentricsm. Was easier to have earth as one of the planets(qualitative) Thought that his greatest achievement was getting rid of the equant . A. osiander- writes the prefass for copernicus- 1543. Copernicus had arrived at am mathematical account- these notes should not be taken as physically true. Since the earths rest cannot be observationally determined. Recognized thst there was problems with the ptolemic system. He was also the greatest naked eye observer. Uraniborg; a special island used for an observatory.