Re:Virgin Galactic successfully reaches space
by dragonwriter on Thursday December 13, 2018 @06:27PM
(#18677106)
> Itβs worth noting that if you shoot a cannonball dead horizontally, it hits the ground at the same time as it would if dropped from the same height
No, it doesn't, because the Earth is curved, and air resistance. With a relatively dense, aerodynamic shell and energy sufficient for only a short flight time, both of these effects are minimal, so it's approximately true, but lose any of those and it stops being a good approximation.
No, it doesn't, because the Earth is curved, and air resistance. With a relatively dense, aerodynamic shell and energy sufficient for only a short flight time, both of these effects are minimal, so it's approximately true, but lose any of those and it stops being a good approximation.