A History of AstronomyPage
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Kepler’s work provided one of the foundations for Isaac Newton's theory of universal gravitation
He discovered that orbits are shaped like ellipses, not circles
Slide 9
Galileo Galilei (1564 - 1642)
He discovered the four largest moons of Jupiter and craters on the Moon
His 1631 book, Dialogue Concerning the Two Chief World Systems, argued for the heliocentric model
He said the Earth could be moving because of the law of inertia
Slide 10
Isaac Newton (1642 - 1727)
Newton used the ideas of Copernicus, Galileo, and others and created the 3 Laws of Motion and the Law of Universal Gravitation
These laws accurately described the motions of all objects everywhere, including astronomical objects
Before this it was believed that astronomical objects had different laws of motion than objects on the Earth
Published his theories in his work Principia in 1687
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Contents
- A History of Astronomy
- Ancient Astronomy
- Ancient Greek Astronomy
- Astronomy in the Middle Ages
- Nicholas Copernicus (1473 - 1543)
- Tycho Brahe (1546 - 1601)
- Johannes Kepler (1571 - 1630)
- Galileo Galilei (1564 - 1642)
- Isaac Newton (1642 - 1727)
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