February 6, 2008

February 6, 2008 - February 6 2008 EXAM 1 IS FRIDAY REVIEW...

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February 6, 2008 EXAM 1 IS FRIDAY REVIEW SESSIONS o WED 7-8:30 IN DUANE G125 o THURS 8 – 9:30 IN DUANE G125 ALLOWED ONE 81/2X11 HAND WRITTEN CHEAT SHEET BRING #2 PENCIL AND ID (STUDENT ID OR DRIVERS LICENCE) ONLINE HW IS DUE TODAY AT MIDNIGHT There won’t be much on the test about astrology Astrology can be tested by comparing how often the predictions come true to what would be expected by chance (clicker question-correct) Astrology makes predictions of the future and you can test whether or not those prediction come true Planet = wanderer What was once so mysterious about planetary motion in our sky? o Planets usually move slightly eastward from night to night relative to the stars o Bu sometimes they go westward relative to the stars for a few weeks: apparent retrograde motion o We see apparent retrograde motion when we pass by a planet in its orbit As we go past them they seem to be moving backwards, its like when we pass a car on a road and they look like they are moving backwards right when we pass them How did the Greeks explain planetary motion? o Underpinnings of the Greek geocentric model Plato and Aristotle Earth at the center of the universe Heavens must be “perfect” Perfect spherical objects moving in perfect spheres or perfect circles This theory wasn’t scientifically proven it was just a belief but it had a big impact on their thinking They may have thought of this because they didn’t think that the
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This note was uploaded on 04/07/2008 for the course ASTR 1110 taught by Professor Hornstein during the Spring '08 term at Colorado.

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February 6, 2008 - February 6 2008 EXAM 1 IS FRIDAY REVIEW...

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