Originally posted by Schumi
Should the curvature of the earth be taken into account?
Of course, how else will we cancel the effects of gravity
So do you know how much force has to be applied to that one square meter slider?
So here is another problem: you have to go out 760,000 meters with your slider, and you need to keep it on a tangent to the surface, how far about ground is the other end? One end is on the surface, so the length follows the tangent line. After they figured out that number, they figured, ok, lets try putting the CENTER of the machine on the surface and building it left and right from there. Now how high are the ends above ground? All that happened before they figured they could just make the whole thing into a big curve but what were those two numbers, the altitude of the one end if the other end was on the surface V the altitude of both ends if the center was on the surface?