On Fri, Jul 24, 2015 at 6:59 AM, Marko Rauhamaa <ma...@pacujo.net> wrote: > Ian Kelly <ian.g.ke...@gmail.com>: > >> Gravity existed before Newton, but the *theory* of gravity did not, so >> he composed the theory? > > Ironically, gravity is maybe the least well understood phenomenon in > modern physics.
Fortunately, we don't need to completely understand it. New Horizons reached Pluto right on time after a decade of flight that involved taking a left turn at Jupiter... we can predict exactly what angle to fire the rockets at in order to get where we want to go, even without knowing how that gravity yank works. Practicality beats purity? ChrisA -- https://mail.python.org/mailman/listinfo/python-list