L05b - 1 / 17 Physics 111 Lecture 5b: The apple and the...

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Unformatted text preview: 1 / 17 Physics 111 Lecture 5b: The apple and the moonNewtons law of universal gravitation One had to be a Newton to notice that the moon is falling, when everyone sees that it doesnt fall. Paul Valery Outline of the class Outline History Keplers laws Newton Law Newton Brahe and Kepler Hints Satellite Demo 2 / 17 Historical prelude Keplers laws Newtons law of universal gravitation Example: Satellite motion Historical prelude Outline History Keplers laws Newton Law Newton Brahe and Kepler Hints Satellite Demo 3 / 17 Ptolemy (2nd century),..., Copernicus (1473-1543): Geocentric vs. Heliocentric world Tycho Brahe (1546-1601), Johannes Kepler (1571-1630) Keplers laws of planetary motion Based on observation made by Brahe Sir Isaac Newton (1643-1727): Universal law of gravitation Keplers laws were consequences of the gravitational force between the sun and the planets Keplers first law Outline History Keplers laws Newton Law Newton Brahe and Kepler Hints Satellite Demo 4 / 17 All planets move in elliptical orbits with the Sun at one focus Second focus is empty Keplers second law...
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L05b - 1 / 17 Physics 111 Lecture 5b: The apple and the...

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