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doit_the_clown doit_the_clown
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7 years ago
The initial reason why the geocentric model for the solar system began to be discarded after the fifteenth century A.D. was that
A)   observations by spacecraft proved that all planets orbit the Sun.
B)   the invention of the telescope provided observations that were in better agreement with a heliocentric model.
C)   Isaac Newton was able to derive all planetary motion from one universal law of gravity.
D)   the heliocentric model is conceptually simpler.
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Discovering the Universe

Discovering the Universe


Edition: 7th
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Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

Albert Einstein
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discovererdiscoverer
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7 years ago
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doit_the_clown Author
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7 years ago
Just got PERFECT on my quiz
novae
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Yesterday
this is exactly what I needed
rudy.zondo
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2 hours ago
I appreciate what you did here, answered it right Smiling Face with Open Mouth
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