User talk:Aspletk

Special Relativity Question - Simple Description Please!
Assuming that a) we have the ability to run at near light speeds, and b) we can observe what is happening.

If I were stationary and observing a runner running at 90% of light speed, because the runner's time is slowed down (relative to me) I would therefore see his movements in slow motion.

If, say, the runner's time is ticking 10% slower than mine, would I see the runner running at 81% of light speed?