- #1
sinebar
- 6
- 0
This is probably just nuts but let's say you switch on a laser, point it to the sky and leave it on for billions of years until the beam has traveled billions of light years. Then you rotate the laser 360 degrees in let's say 1 RPM. Does the laser spot that is now billions of light years away from the axis of rotation complete the rotation in 1 minute? If so then the laser spot that is now billions of light years from the axis of rotation would have to travel much faster than light right?