Astronomy
Published on Nov 22, 2015
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PRESENTATION OUTLINE
ARISTOTOLE
- . He believed that the Earth is a disk floating on an endless ocean.
- brought astronomical records from these cultures back to Greece.
- he correctly predicted a solar eclipse in the year 585 B.C.
ARISTARCHS
- proved that the Earth is spherical.
- believed that it was at the center of the universe.
- he knew that the Earth revolved around the Sun.
PTOLEMY
- Ptolemy assumed that all astronomical objects move at constant speeds in circular orbits.
- visualized an Earth-centered universe.
- Ptolemy was the cornerstone of astronomy for 1,500 years.
COPERNICUS
- He came up with that the sun was in the center.
- Made the first heliocentric model of the universe.
- He made the modern solar system.
KEPLER
- He made the 3 law's
- He inherited his teacher's extensive collection of astronomical records,
- he found it difficult to fit Tycho's observations of Mars into the model with a circular orbit
GALILEO
- He saw the craters, mountains, and valleys of the Moon.
- publicized the fact that other astronomical bodies, such as Jupiter's moons, were clearly revolving around something that was not earth
- Galileo's support of the Copernican model of the universe frightened the Church, which put Galileo on trial in 1633.
