Recent content by lloydziegler

So what is the explanation for sweeping a laser beam across the moon in a microsecond.... is it true that that laserdot moves faster than the speed of light?

If two separate, coherent light beams were to intersect at a slight angle near the viewer, and then very rapidly made parallel,could the intersection point move away from the viewer in excess of the speed of light? If so, could that intersection point be made visible somehow,and how would the...