The Scientific Revolution

Gravity

What holds the planets up? Moreover, if they are all whizzing about the sun, what keeps them from flying off into space?

Renee Descartes argued for vortices, or ether.

Newton's gravity was like make-believe. He was proposing invisible forces that could not be detected. But the model worked. And only a handful of men could even follow the math - he was miles ahead of the others.

History of Western Civilization

E.L. Skip Knox
Boise State University

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