In a letter to a colleague, Isaac Newton wrote, "If I have seen farther, it is by standing on the shoulders of giants." Which earlier work made Newton's scientific contributions possible or is most closely related to Newton's work? The research on population growth by Thomas Malthus The theory of planetary motion developed by Nicolaus Copernicus The use of the microscope to study cells by Robert Hooke The process for making stronger steel invented by Henry Bessemer

The theory of planetary motion developed by Nicolaus Copernicus

Explanation:

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isaac newton first proposed that earth was not perfectly round. instead, he suggested it was an oblate spheroid—a sphere that is squashed at its poles and swollen at the equator.

the idea of the earth being a flat disc is also inconsistent with the fact that a given lunar eclipse is only visible from half of the earth at a time. the only shape that casts a round shadow no matter which direction it is pointed is a sphere, and the ancient greeks deduced that this must mean the earth is spherical.