Status Updates From The Principia. Mathematical...

It was hard to follow. We aren’t taught geometry this way in mathematics today.

Newton describes spherical motion using geometrical arguments. He and derived Keplers law, that a planet sweeps a constant area in a constant time

Section I: Third Law, Newton’s Cradle, Integral calculus by area under a curve, limits and derivatives

I never realised Hooke and Newton were rivals. It’s bizarre to think that before Newton, a physicist could just advance a theory that explained no experiment