03_Sep1[1] - III. HISTORICAL ASTRONOMY Some Brief Notes The...

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III. HISTORICAL ASTRONOMY Some Brief Notes The dawn of science : early l cosmologies z (theories about the origin and evolution of the universe) culminated in Greek thought. This yielded a procedure for doing science.
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• The key idea is that facts about nature could be learned by systematically observing and experimenting. The results must be reproducible or repeatable by others. • The facts can be understood on the basis of a simple principle(s). This principle(s) leads to a testable experiment or observations. The idea is shown to be right in some ways, wrong in others. The idea is then modified and the process repeated…
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The ideas of some early Geeks J Aristotle (384-322 B.C.) : l philosophy confronts experiment z 1. Moon is spherical because its terminator is round 2.Sun is farther away than Moon demonstrated by Moon ` s phases 3. Earth is spherical because of shape of Earth ` s shadow in eclipses and stars change for traveler going North/ South
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Aristarchus of Samos
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This note was uploaded on 11/27/2011 for the course AST 301 taught by Professor Harvey during the Spring '07 term at University of Texas.

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03_Sep1[1] - III. HISTORICAL ASTRONOMY Some Brief Notes The...

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