I'm fascinated with space travel and if we are to ever travel between Stars we need to go as close to the speed of light as possible(actually we really need to exceed it many times over, but that's a different kettle of fish). Also the other problem we have to deal with is Zero G. So I got to wondering what if we built a space ship that was basically a huge disc were we would inhabbit the top(roof) or bottom(floor) of the disc, depending upon the direction we are accelerating, and accelerated at a constant 1 - 1.5 G to reach the destination ?? The question I am dying to know the answer to is how long would it take, and how far would we have travelled, to reach the speed of light at a constant acceleration to maintain a force of 1G, and 1.5G respectively ?? I know there will be someone smart enough on this Forum that could answer this question.