ASTRO-110 Lecture Notes - Lecture 3: Copernican Revolution, Middle Ages, Celestial Spheres
9 Sep 2020
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Galileo (1564 1642) overcame major objections to the copernican view. Three key objections rooted in aristotelian view were: Earth could not be moving because objects in air would be left behind. Non-circular orbits are not perfect as heavens should be. Galileo also saw four moons orbiting jupiter, proving that not all. If earth were really orbiting sun, we"d detect stellar parallax. objects orbit the earth. The catholic church ordered galileo to recant his claim that earth orbits the sun in 1633. His book on the subject was removed from the church"s index of banned books in 1824. Galileo was formally vindicated by the church in 1992. The vatican observatory dates back to 1582 and remains open (currently based in tucson, arizona) The western world"s first university at bologna, was founded in 1088 to teach church law. The church translated and preserved much of greek science during the middle ages.
