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2006-07-17 05:37:03 · 5 answers · asked by brlmnd 1 in Science & Mathematics ➔ Physics
With a mirror
2006-07-17 05:40:04 · answer #1 · answered by Anonymous · 0⤊ 0⤋
To do this you would simply need to change the frequency that light travels on. everything vibrates at a certain frequency. if you were to loop a frequency, say like a slinky, a spiral affect and keep every wire of the slinky (frequency) infinitely closer than you could see. then a person standing 10' from a light source would see that it was on where a person 20' from the same light source would not see this for a few moments later. the light is still traveling at it's normal speed but now has a longer route between A and B via frequency.
you could in effect slow light down to a point that it would appear to be moving in slow motion. as when light passes through different objects the frequency is then changed by the density of the object and it is prov en that at that point light will slow down. therefor I believe that other mater would exist that would allow light frequency to accelerate such as a black hole, where you have a tornado affect where in the inside is void of anything that would obstruct the light frequency and would allow the light to re enter the galaxy in a new place at the very same moment it enters.
2006-07-17 13:31:40 · answer #2 · answered by Givingitthought 2 · 0⤊ 0⤋
The "speed of light" cannot be reversed because the speed of anything has a minimum of 0.
The "velocity of light" is a different measure. Velocity is what is called a VECTOR mathematically, while speed is a SCALAR. Velocity combines the attributes of speed and direction. A reversal of velocity (i.e. a negative velocity of equal magnitude or size) is simply the same speed in the opposite direction. To reverse the velocity of light, as some have humorously answered, reflect it in the opposite direction.
I'll throw in another bit of info for you: the speed of light depends on the medium through which it is traveling (water, glass, fiber optic cabling, etc). However, the MAXIMUM value of the speed of light (3x10^8 m/s) is a universal constant which never changes.
Relativity is based around the peculiar property of light that the speed of light is always the same regardless of the motion of the observer with reference to the source of the light, but that's another topic...
2006-07-17 13:11:31 · answer #3 · answered by kevinngunn 3 · 0⤊ 0⤋
You can reverse its direction by using a mirror.
2006-07-17 12:41:22 · answer #4 · answered by Paul Atreides 2 · 0⤊ 0⤋
Point your flashlight in the other direction.
2006-07-17 12:43:31 · answer #5 · answered by Anonymous · 0⤊ 0⤋