01:750:109 Lecture Notes - Lecture 13: Foucault Pendulum, Nicolaus Copernicus, Angular Momentum
19 Oct 2018
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Inertia: bodies to persist in their state of motion (uniform, straight line) Neglecting friction, all bodies fall with the same constant acceleration. Under influence of only gravity, any two objects hit the ground at the same time. Galileo and the objections to the copernican view. Old view: earth could not be moving since objects such as birds, falling stones, and clouds were not left behind (galileo: inertia) Born at 600 mph (have inertia from beginning) Would feel if earth suddenly stopped spinning. Old view: the realm of the sky is perfect and unchanging-circular orbits (galileo: sunspots) Old view: absence of stellar parallax (galileo: milky way made of far away stars) Phases of venus (venus goes on the other side of the sun - direct proof that there is at least one object that is orbiting the sun) The catholic church ordered galileo to recant his claim that earth orbits the sun in 1633.
