2007-03-29 00:14:30 · 5 answers · asked by nicolas 4 in Science & Mathematics ➔ Physics
When light is absorbed by an object, the photon either imparts its energy to a nucleus as kinetic energy, or raises the energy level of an electron, taking it to a higher orbit. In both cases, the photon doesn't stop, it is annihilated (it disappears). In that sense, it can be considered as the movement of a quantum of energy.
2007-03-29 07:36:13 · answer #1 · answered by Frank N 7 · 0⤊ 0⤋
You can slow it down an awful lot, by using a material with an extremely high refractive index or by cooling certain materials down into a Bose-Einstein condensate.
Some clever physicists have slowed it to about 1 mph in a lab.
See link....
http://news.bbc.co.uk/1/hi/sci/tech/655518.stm
2007-03-29 07:27:24 · answer #2 · answered by Doctor Q 6 · 1⤊ 0⤋
NO only at the end of the world !!!!!
2007-03-29 07:17:06 · answer #3 · answered by nice person 2 · 0⤊ 1⤋
Yes, Black holes will stop anything.
2007-03-29 07:17:10 · answer #4 · answered by Anonymous · 0⤊ 1⤋
changes form...what do you think happens when it hits you ?! can't live without it !
2007-03-29 07:18:02 · answer #5 · answered by Anonymous · 0⤊ 0⤋