(September 8, 2011 at 2:48 pm)Rayaan Wrote:(September 8, 2011 at 2:30 pm)Tiberius Wrote: I once frequented the "Flat Earth Society" forums, and met some people who honestly believed that what we call "gravity" is simply the effect of the Earth (which is a massive flat disk surrounded by a wall of ice) hurtling upwards through the universe.
At least they successfully applied Einstein's equivalence principle in relation to gravity. So, a little credit there.
No, they didn't. Equivalence principle would call for earth to be accelerating upwards through space, nbot merely hurtling upwards through space.