Why Nostr? What is Njump?
2024-12-28 16:29:07
in reply to

John Carlos Baez on Nostr: nprofile1q…8cnse nprofile1q…7mqrg - yes, this claim is on Wikipedia, and it ...

- yes, this claim is on Wikipedia, and it puzzled me:

"Cassini believed that a planet orbiting around another body traveled on one of these ovals, with the body it orbited around at one focus of the oval.[2]"

where [2] is

Cohen, I. Bernard (1962). "Leibniz on elliptical orbits: as seen in his correspondence with the Académie Royale des Sciences in 1700". Journal of the History of Medicine and Allied Sciences. 17 (1): 72–82. doi:10.1093/jhmas/xvii.1.72.

and now I'm going to read it here:

https://www.jstor.org/stable/24620858

It's about a guy named Fontenelle telling Leibniz that Cassini has abandoned Kepler's ellipses. I don't see anything about *why* Cassini did this. It mentions that Leibniz might have liked this because it could invalidate Newton's mechanics, but it doesn't provide any evidence that Leibniz actually *did*. So, fairly mysterious.
Author Public Key
npub17u6xav5rjq4d48fpcyy6j05rz2xelp7clnl8ptvpnval9tvmectqp8pd6m