keepitmoving
Jul1-09, 11:11 AM
two spaceships send a light beam toward earth at the moment that they pass each other, one sends light backward toward us and one sends light forward toward us.
On earth we measure the light speed as equal but lets back up to when the two lights were emitted. What speed would we measure for the two lights?
On earth we measure the light speed as equal but lets back up to when the two lights were emitted. What speed would we measure for the two lights?