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History, Gravity, Sun

Published on Dec 09, 2015

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1.

ARISTOTLE
384-322 BCE

earth center of everything
earth around the sun

Photo by Ryan Somma
2.

ARISTARCHUS
about 310-320 BCE

measured the distance between sun and moon

Photo by tiffa130
3.

PTOLEMY
about 100-170 CE

"wheel-on-wheel"

Photo by Tom Holbrook
4.

NICOLAUS COPERNICUS
1473-1543

sun is the center of everything

Photo by djwtwo
5.

JOHANNES KEPLER
1571-1630

the solar system isn't a circle

Photo by John Spooner
6.

GALILEO GALILEI
1564-1642

earth is not the only planet that orbited

Photo by Marcus Q
7.

ISAAC NEWTON
1642-1727

law of universal gravitation

Photo by Michael Scott | scottphotographics.com
8.

EDWIN HUBBLE
1889-1953

universe is expanding

Photo by moonstar909

Erika Van Wagenen