Forgotten Sketches By Leonardo Da Vinci Suggest That He Understood Gravity Decades Before Newton

Image caption: A portrait of Leonardo da Vinci, the famous 15th and 16th-century inventor and artist. Image credit: FierceAbin / Getty Images. Article by Amber Breese. All That’s Interesting –  updated February 16, 2023.

A new study examining some of Leonardo da Vinci’s sketches in the Codex Arundel reveals the artist calculated the earth’s gravitational constant at a 97% accuracy rate.

In 2017, California Institute of Technology professor Mory Gharib was searching the Codex Arundel, a collection of notes and sketches by Leonardo da Vinci dating from 1480 to 1518, for illustrations that he could share with his graduate students when he noticed a particularly intriguing sketch. […]

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