A look at Isaac Newton's Principia Mathematica (Mathematical Principles of Natural Philosophy). This great physics book first published in 1687 contains Newton's laws of motion and includes work on the motion of bodies including the inverse square law.

The copy shown in this video has been translated into English (from Latin) by Andrew Motte and Revised by Florian Cajori. There are free PDFs online but if you want a physical copy: https://amzn.to/3foeKFe

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