DO NOW History of Gravitation

For him, the sphere of the world is made up of four elements.

• Johannes Kepler

• Tycho Brahe

• Nicolas Copernicus

• Aristotle

• Giordano Bruno

He said that each of the wandering stars and the planets have their own crystal sphere.

• Johannes Kepler

• Tycho Brahe

• Nicolas Copernicus

• Aristotle

• Giordano Bruno

He believed that the sun was at the center of the universe.

• Johannes Kepler

• Tycho Brahe

• Nicolas Copernicus

• Isaac Newton

• Giordano Bruno

He pointed out that the orbits of the planets are not perfect circles.

• Johannes Kepler

• Tycho Brahe

• Nicolas Copernicus

• Isaac Newton

• Giordano Bruno

He saw through his telescope moons orbiting around Jupiter, totally ignoring the earth.

• Johannes Kepler

• Tycho Brahe

• Galileo Galilei

• Isaac Newton

• Giordano Bruno

He proposed the theory of universal gravitation.

• Johannes Kepler

• Tycho Brahe

• Galileo Galilei

• Isaac Newton

• Giordano Bruno

He suggested that the stars were suns that likely had their own planets and that the universe was infinite.

• Johannes Kepler

• Tycho Brahe

• Rene Descartes

• Isaac Newton

• Giordano Bruno

He was burned at the stake for his radical suggestion.

• Johannes Kepler

• Tycho Brahe

• Rene Descartes

• Isaac Newton

• Giordano Bruno

He proposed that the universe was a series of whirlpools, and that each star was at the center of a whirlpool.

• Johannes Kepler

• Tycho Brahe

• Rene Descartes

• Isaac Newton

• Giordano Bruno

He got more and more advanced telescopes.

• William Herschel

• Tycho Brahe

• Albert Einstein

• Isaac Newton

• Giordano Bruno