2006-11-01 16:58:44 · 18 answers · asked by indigoblues123 1 in Science & Mathematics ➔ Astronomy & Space
3 x 10^8 m/s
same as the light leaving....!!
2006-11-01 17:05:30 · answer #1 · answered by big_daddy_cool4u 2 · 0⤊ 0⤋
Darkness is not physical object, it is only a region on a surface where there is an absence of light. A light source and a solid opaque object to cast a shadow are required to create darkness.
By moving the source of light or the opaque object or both, you can make the region of darkness to change its location or size at any arbitrary speed. For e.g., a source of parallel beam of light vertically shining down on a pole would cast zero size darkness. By moving the light source quickly down to the midpoint of the height of the pole and pointing horizontally, the pole shadow can be made infinitely long on the ground surface (assuming such a long flat surface is available for you to view the shadow). This is infinite speed because of infinite growth in finite time.
Hence the speed of darkness is anything arbitrary from zero to infinity.
2006-11-02 02:21:07 · answer #2 · answered by Inquirer 2 · 0⤊ 0⤋
i like your qusetion. light keeps traveling but when something moves infront of the light to brake it's path it blocks the light from continuing, but the light that was not blocked keeps going emedeitly folowed by darkness which should be the speed af light because something has to fill that whole space behind that light. or darkness could be nothing.
when you are makeing a shadow on the wall and you move your hand how long dose it take for your shadow to catch up to were your hand stop? it is not at the same time nor is it as far behind of your hand but it is close, right? i think the answer is darkness has the same speed as light does.
2006-11-02 01:22:04 · answer #3 · answered by jesse g 1 · 0⤊ 0⤋
If
Speed of light = 3 x 10^8 m/s
then
Speed of dark = 1/3 x 10^8 m/s
2006-11-02 07:07:21 · answer #4 · answered by LeBlanc 6 · 0⤊ 0⤋
Same with the Speed of Light
2006-11-02 01:08:02 · answer #5 · answered by musiclover2008 3 · 0⤊ 0⤋
Darkness is the perceived absence of light. Contrary to popular belief, pure or total darkness does not exist, because some small amount of light particles, in the form of radiation, permeate every corner of the universe, even if undetectable to the human eye at times. So, darkness is best described as "less amounts of light," rather than "the absence of light." True darkness is only theoretically possible in conditions of absolute zero.
2006-11-02 01:12:19 · answer #6 · answered by hage 2 · 0⤊ 0⤋
Well, it's always there first, so it must be faster than the speed of light....
but maybe it is just more intuitive and knows where to be ahead of time (hey, you have never walked into a room with no light and not had the dark there, did you?)
2006-11-02 01:08:59 · answer #7 · answered by Ro-bot 5 · 0⤊ 0⤋
i have thought that in a different way...
say if light is in existence for ever then speed of darkness is zero...... and if light is just a temporary thing then speed of darkness is - 186,000 mph
this is a new try.... but i think this is the way it ought to be
2006-11-02 01:57:02 · answer #8 · answered by ? 2 · 0⤊ 0⤋
Darkness has no speed
2006-11-02 02:45:14 · answer #9 · answered by futureastronaut1 3 · 0⤊ 0⤋
Same as the speed of light leaving.
Jonnie
2006-11-02 01:01:37 · answer #10 · answered by Jonnie 4 · 1⤊ 0⤋
And can't we get the speed of light over 186,000 mps? How about a turbo boost or some nitrous oxide
2006-11-02 01:01:41 · answer #11 · answered by Anonymous · 0⤊ 0⤋