hello everyone. just wondering with development in modular robotics, could we possibly throw a space station into space bit by bit via something as simple as a pulley system? doing a bit of research i found out you can get a 1000 ton crane, therefore 9,800,000N of force, i also found out that if we can throw something upwards at 11,000 m/s it will never return back to earth. aka. its in space. so using the v2=u2+2as and a simple pulley system equation, F-mg = ma we can come to, s=v2m/2(F-mg) substituting values into this, F=9,800,000N, m = 10kg (if we send stuff up in 10 kg packets) and v=11,000 m/s we get s=61.74m now if we set up 4 of these pulleys in a cross section like the bottom corner of the attached image. we can cut that down by a factor of 4. so what im saying/ asking why couldn't we throw stuff up into space using a contraption 15.43m or so tall? i feel as if i might be missing something simple here, i am only a high school student so please could you give some feed back about this, i would love to learn more about it, thanks.