Changes

Tyson [https://www.youtube.com/watch?v=danYFxGnFxQ tells a story about Newton] where a friend asks Newton about elliptical orbits. Newton goes home, invents integral and differential calculus and the  comes back two months later with the answer. And then Newton turns 26. Halley's question about elliptical orbits is famous and well documented. Halley asked Newton this question when Newton was 41. Newton came back two years later with the rough draft for Principia and Principia was published when Newton was 45.

Tyson [https://www.youtube.com/watch?v=danYFxGnFxQ tells a story about Newton] where a friend asks Newton about elliptical orbits. Newton goes home, invents integral and differential calculus and the  comes back two months later with the answer. And then Newton turns 26. Halley's question about elliptical orbits is famous and well documented. Halley asked Newton this question when Newton was 41. Newton came back two years later with the rough draft for Principia and Principia was published when Newton was 45.

It is thought that Newton developed his calculus ideas when he was in his twenties. But if not because of a "dare" from Halley, what prompted him? Mostly likely it was his colleague Isaac Barrow. Barrow, Fermat, Cavalieri and others and already laid the foundations of calculus in the generation before Newton and Leibniz.

It is thought that Newton developed his calculus ideas when he was in his twenties. But if not because of a "dare" from Halley, what prompted him? More likely it was his colleague Isaac Barrow. Barrow, Fermat, Cavalieri and others and already laid the foundations of calculus in the generation before Newton and Leibniz.

See [https://thonyc.wordpress.com/2017/06/14/why-doesnt-he-just-shut-up/ Thony Christie disembowel Tyson's bad history].

See [https://thonyc.wordpress.com/2017/06/14/why-doesnt-he-just-shut-up/ Thony Christie disembowel Tyson's bad history].