An
interesting (
IMO)
theory related to
Albert Einstein's famous Theory of Relativity. Einstein discovered that
light is observed moving at the
same speed no matter what
speed the observer is moving. This led to an interesting paradox; If you are '
standing still' and measure the speed of a light ray coming at you, you will measure it at about 300,000
kilometers a
second. However, if you are travelling at 1/2 the
speed of light and measure a ray of light coming at you, you will still measure it's speed at 300,000 K/sec. Through these realizations, Einstein
discovered that the closer you get to the speed of light, the slower percieved
time moves. This was
later proved correct when
2 cesium clocks were syncronized on
Earth and then one was taken on a
space shuttle mission. At the end of the mission after the shuttle landed, the times were compared and the clock that was in space travelling at 20,000
miles an
hour was slightly behind the clock that remained on Earth.
I wonder what it would be like to actually travel at close to (remember
E=MC^2 so you could never travel
at light speed) the speed of light... that would be trippy. You would have travelled YEARS in earth time, your great-great grandchildren would be dead, but you have only been travelling a couple of minutes...