There are many demonstrations of things that can go faster than light. If you have a long wave not quite parallel to shore, the place where that wave meets shore could move faster than light--but the particles of water themselves do not. Just our concept of where the wave meets the shore does.
One other common example is shining a (very focused) laser on the moon for a while, and then turning and shining it on your wall. It would seem the spot produced by the laser would jump 240000 miles in about a second--faster than the speed of light. Still, no actual particles go that fast--just our concept of the "spot."
However, if you do the trigonometry, something else seems to happen. Assume the moon is 1.3 seconds away, and you train the light on it, then turn it towards a wall 3 meter (10 nanoseconds) away, smoothly turning one quarter turn in one second. A piece of paper extends along the wall all the way to the moon, also 3 meters away from the dot on the moon.
The dot on the moon doesn't start "moving" for 1.3 seconds, of course, but another dot appears on the paper in 80 microseconds, about 24 km above the surface of the earth. That second dot splits into two dots, one racing to the moon, and the other dropping to your room. Of course, it takes the whole rest of your turning (1 second minus 80 msec) to get to your room. The other dot races up the paper to the moon at slightly less than light speed, and eventually meets up with the dot arriving from the moon, sometime after 1.3 seconds, but not much.
At no time, did any of the three dots exceed the speed of light. When the dot appeared in your room, though, it was still on the moon! Time travel!
<font size=-1>[Fixed formatting and spelling]</font>
<font size=-1>[ This Message was edited by: GrapesOfWrath on 2001-12-09 05:51 ]</font>