Recent content by Chris84567

I watched this video and I am still a little confused. Are the ships in different positions depending on the observer?

The question: If the max speed I can go in the universe is the speed of light measured from? Background: If there are three rocks in a vacuum along a line (the x axis), one is stationary (rock 1), one is moving 5 m/s in the x direction (rock 2) and one is move -5 m/s in the x...