2006-07-30 17:41:21 · 16 answers · asked by El Nueve 2 in Science & Mathematics ➔ Physics
Ha ha! This one is for Harry Potter, I guess...
In the sense of "darkness falls", it will be as fast as light...
Let us consider a place where the only light source is a bulb, initially switched off. When we switch on the light, the region immediately surrounding the bulb will (well almost) immediately get "lit" by light waves radiated by the source. But, at the point of reference, light waves will arrive at their usual speed. Suppose now, the light is switched off. The "last" light wavefront, i.e., the last light to leave the source will still travel at the speed of light, and is faithfully followed by the "darkness" left behind, at the same speed.
2006-07-30 18:44:08 · answer #1 · answered by lemmethink 2 · 0⤊ 0⤋
Dark is an absolute (and ungenerated)
it is the absence of light
but it will close behind light at the same speed as light ---as light exits---186,000 miles per second
2006-07-30 17:49:54 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Good question since dakness is the absence of light I would have to theorize it as Dark Speed. LOL!
2006-07-30 17:44:37 · answer #3 · answered by Anonymous · 0⤊ 0⤋
2 fast 4 u
2006-07-30 18:05:49 · answer #4 · answered by Anonymous · 0⤊ 0⤋
I can only suppose that 'dark' is the result of 'light' leaving the scene - so the speed of 'dark' would be 186,000 mps??
2006-07-30 17:47:47 · answer #5 · answered by LeAnne 7 · 0⤊ 0⤋
dark matter is everywhere, even the place there is gentle. dark matter is WIMPS- Weakly Interacting massive debris. they are plenty extra massive than atoms, and that they are in charge for forming Galaxies. ninety 5% of all matter is dark matter, yet we don't be responsive to plenty approximately it, so we don't be responsive to the cost. yet we do be responsive to, like Neutrinos, that they are vacationing promptly via our bodies each 2nd. (this is how they are WEAKLY INTERACTING)
2016-11-03 08:40:43 · answer #6 · answered by sikorski 4 · 0⤊ 0⤋
same with the speed of light..
for in the absence of light darkness prevail...
2006-07-30 18:15:40 · answer #7 · answered by Erick C 2 · 0⤊ 0⤋
This isn't such a bad question! Nowadays scientists, instead of talking about electrons moving in solid-state materials, talk about *holes* moving.
So yeah, right on about 186,000 MPS
2006-07-31 01:38:49 · answer #8 · answered by Luis 4 · 0⤊ 0⤋
0 km/h Dark doesn't travel, so it has no speed.
2006-07-30 21:55:47 · answer #9 · answered by whatever 2 · 0⤊ 0⤋
Darkness doesn't travel. It exists everywhere, we just dont see it when there's light passing by.
2006-07-30 17:55:57 · answer #10 · answered by Jimbo 6 · 0⤊ 0⤋