PHYS 1902 Lecture Notes - Lecture 4: Semi-Major And Semi-Minor Axes, Deferent And Epicycle, Geocentric Model
15 Feb 2016
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Laws of motion: read chapter 2 in the textbook, exercises: do all review and discussion and all conceptual self-test ; problems. 1), 6), 10: most quantitative lecture in the course. Xed the to celestial sphere: ptolemy circa 140 ce presents complete model in the almagest, based on earlier ideas but with modi cations. 1633 and condemned his works not forgiven until 1992: most important contribution by galileo galilei the scienti c method, he emphasized observation and empirical methods applied mathematics to his dis- coveries, the father of experimental science. 1. 4 the heliocentric model comes into its own: at roughly the same time that galileo was making his discoveries tycho brahe and. The orbital paths of the planets are elliptical not circular with the sun at one focus. An imaginary line connecting the sun to any planet sweeps out equal areas in equal intervals of time.
