Timeline by VIKTOR KAUFMAN https://padlet.com/vkaufman0002/amzpr0eyk49xv59f Blue = Geocentric . . . Orange = Heliocentric en-us 2023-01-18 22:41:09 UTC 2023-01-25 06:35:57 UTC hello@padlet.com Aristotle vkaufman0002 https://padlet.com/vkaufman0002/amzpr0eyk49xv59f/wish/2455659833 Around 318 - 322 B.C.E.

Thought that the motions of planets and stars were perfect circular movements
Thought that the orbits would go on forever
Thought that the planets and stars were perfect spheres though Earth itself was not

-Geocentric]]> 2023-01-25 04:41:04 UTC https://padlet.com/vkaufman0002/amzpr0eyk49xv59f/wish/2455659833 Aristarchus vkaufman0002 https://padlet.com/vkaufman0002/amzpr0eyk49xv59f/wish/2455660046 Around 310 - 230 B.C.E.

Developed the Heliocentric Model:
-Earth rotates on an axis
-Moon < Sun
-Sun remains within the midst of the solar system
-Earth orbits the sun
-The concept was disbelieved + declined existence

-Heliocentric

]]> 2023-01-25 04:41:26 UTC https://padlet.com/vkaufman0002/amzpr0eyk49xv59f/wish/2455660046 Ptolemy vkaufman0002 https://padlet.com/vkaufman0002/amzpr0eyk49xv59f/wish/2455660099 Around 100 - 168 C.E.

Astronomer and mathematician
 Believed Earth was the center of the Universe.
He was able to combine what he saw of the stars' movements with mathematics, with geometry, to predict the movements of the planets, and worked out that the planets must move in epicycles, smaller circles, and the Earth itself

-Geocentric]]> 2023-01-25 04:41:32 UTC https://padlet.com/vkaufman0002/amzpr0eyk49xv59f/wish/2455660099 Copernicus vkaufman0002 https://padlet.com/vkaufman0002/amzpr0eyk49xv59f/wish/2455660362 1473 - 1543 C.E.

Nicolaus Copernicus came up with a radical way of looking at the Universe. His heliocentric system put the Sun (helio) at the center of our system. His ideas, including the revelation that the Earth rotates on its axis, were too different for most of the scholars of his time to accept. They used only parts of his theory.

-Heliocentric]]> 2023-01-25 04:41:59 UTC https://padlet.com/vkaufman0002/amzpr0eyk49xv59f/wish/2455660362 Tycho Brahe vkaufman0002 https://padlet.com/vkaufman0002/amzpr0eyk49xv59f/wish/2455660499 14 December 1546 - 24 October 1601

Formed compromised model, since in Copernicus’ and Ptolemy’s theory; all stars remain within an unchanging sphere that revolves Earth, and Tycho announced phases of Venus

-Geocentric]]> 2023-01-25 04:42:12 UTC https://padlet.com/vkaufman0002/amzpr0eyk49xv59f/wish/2455660499 Galileo Galilei vkaufman0002 https://padlet.com/vkaufman0002/amzpr0eyk49xv59f/wish/2455660696
15 February 1564 - 8 January 1642

Devised a telescope that could enlarge objects up to 20 times, Proved the truth of the Copernican system of heliocentrism. Supported Kepler's theory of ellipses. Was a brilliant student with a genius for invention and observation. 

-Heliocentric
]]> 2023-01-25 04:42:34 UTC https://padlet.com/vkaufman0002/amzpr0eyk49xv59f/wish/2455660696 Kepler the New Astronomy vkaufman0002 https://padlet.com/vkaufman0002/amzpr0eyk49xv59f/wish/2455660939
27 December 1571 - 15 November 1630

Realized that the planets' orbit around the sun doesn't have to be a circle, it could be an ellipse

-Heliocentric
]]> 2023-01-25 04:43:00 UTC https://padlet.com/vkaufman0002/amzpr0eyk49xv59f/wish/2455660939 Newton vkaufman0002 https://padlet.com/vkaufman0002/amzpr0eyk49xv59f/wish/2455661018
4 January 1643 - 31 March 1727

He continued to expand the work of Galileo- the relationship between energy and motion. He invented the 3 laws of Motion, produced convincing proof to support the heliocentric theory, saying that the sun exerted a constant pull which caused the the earth to rotate around the sun

-Heliocentric
]]> 2023-01-25 04:43:08 UTC https://padlet.com/vkaufman0002/amzpr0eyk49xv59f/wish/2455661018