Reading about the history of calculus last night, and ended up
consulting the Russian language version of the Bernoulli differential
equation.
Turns out one can integrate an exponent!😄
found in (Russian version):
https://fr.wikipedia.org/wiki/%C3%89quation_diff%C3%A9rentielle_de_Bernoulli
Also interesting, first pass at the gravity problem (1687) with Leibniz, below:
Newton intoduced mass to the problem that same year, but Cavendish had an approximation
for a gravitational constant in 1798. G notation came in 1890.
https://fr.wikipedia.org/wiki/Isochrone_de_Leibniz
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