2006-08-28 10:01:32 · 8 answers · asked by Yo yo 2 in Science & Mathematics ➔ Other - Science
There is something called the "group velocity", in which light has been shown to travel up to 3 times the speed of light. There is also a process called "tunneling" where light particles (waves) can travel slightly faster than the speed of light under certain conditions.
2006-08-28 10:14:43 · answer #1 · answered by Anonymous · 0⤊ 0⤋
No particle that possesses mass can travel at (or beyond) the speed of light. Massless particles (photons and the theoretical graviton) always travel at exactly the speed of light. However, the speed of light itself can vary; it is greatest in a vacuum, and slows down when light passes through matter such as air or water. There have been recent experiments done where light has actually been slowed to almost a stop using cryogenic materials and lasers.
2006-08-28 10:06:13 · answer #2 · answered by stevewbcanada 6 · 0⤊ 0⤋
Not that's been proven. Some think achieving faster than this speed is the key to time travel.
2006-08-28 10:07:08 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Not yet. We broke the sound barrier (which we thought was impossible) while we were a bunch of numbskulls. We're still numbskulls but we WILL break the light barrier or find a way to cheat. If you can't go past it, go around it.
2006-08-28 10:45:34 · answer #4 · answered by dudezoid 3 · 0⤊ 0⤋
light travels at 186000 miles per second
2006-08-29 14:50:37 · answer #5 · answered by tazz4a 1 · 0⤊ 0⤋
Nothing in this dimension.
2006-08-28 13:27:13 · answer #6 · answered by JOHNNIE B 7 · 0⤊ 0⤋
Gossip. ;)
2006-08-28 13:26:57 · answer #7 · answered by Mustela Frenata 5 · 0⤊ 0⤋
not yet.
2006-08-28 11:01:37 · answer #8 · answered by nuwanusa 5 · 0⤊ 0⤋