NATS 1880 Lecture Notes - Lecture 5: Celestial Sphere, Diurnal Motion, Anaximander
2 Nov 2017
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Document Summary
The movement of night sky is important and observed by ancient people with great accuracy these movements in the sky called diurnal motion. Thales of greece (624-546 bc) suggested that the universe was permanently understandable, means time and place does not matter. Plato and aristotle (384-322 bc) improved this philosophy and developed vision and thought than observation. debate about theories and guesses was encouraged, a fundamental idea of science, they tried to proof it. Mathematics was developed mostly by greeks and used to help further their discussions on the construction of the universe. The early greek philosophers were prepared to discard a theory if proved to be incorrect. A representation of some aspects of nature that can be used to explain and predict real fact without s superstitious stuff. The imaginary sphere including all objects that we observe in sky from earth that helps us understand sky motions.
