Isaac Newton's Explanation of Gravity in Principia
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Summary
Isaac Newton's publication of Principia in 1687 explained the laws of gravity and motion, answering questions about why objects stay on the ground and why the moon doesn't fall to Earth.
Key quotes
· 4 pulledPeople were worried, mostly about everything, but particularly about why things stayed on the ground.
And then on July 5, 1687, Isaac Newton published a book with a title so long it felt like a Latin riddle: Philosophiæ Naturalis Principia Mathematica.
Why a
On this day in 1687, Isaac Newton published the Principia—a book that explained why apples fall, why planets don’t wander off, and why NASA is still lighting enormous tubes on fire to fling humans into orbit 337 years later.
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