https://www.youtube.com/watch?v=A2JCoIGyGxc 1 o
Post# of 123734
1 of the difficult aspects of relativity is the kinetic energy required to double the speed
plus the practical aspects of space travel- encountering the dust and micrometerites involves an impact at a geometric relation to the speed-the square of the velocity
and complying w the laws of physics places a practical limit of ca 1% of the speed of light