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HA HA HA sort that out you clever dic ks

2007-03-18 09:08:06 · 26 answers · asked by Anonymous in Science & Mathematics Physics

26 answers

The two opposing schools of thought that have developed are:

1. Darkness does not move, it is always present, and light is layered on top of it. (As an analogy, consider a table as being darkness, a tablecloth as being light: when you pull the tablecloth off, the table itself (darkness) doesn't move).

2. Darkness moves at the same speed as light, and it meets the laws of motion in that Darkness is the equal and opposite reaction for the action of the movement of light.

There is a very interesting forum discussion about it here:
http://physicsforums.com/archive/index.php/t-101443.html

I'm still debating myself about it but personally I'm leaning toward the 2nd theory.

2007-03-18 09:17:18 · answer #1 · answered by lolo 2 · 2 0

Light moves. Darkness is the absence of light and does not.

An analogy may help.

Heat moves, cold is the absence of heat. You can describe the rate at which you “cool” and infer a “speed of cold” from that. However the physical reality is that only heat moves.

Similarly you might infer a “speed of darkness” measuring the rate at which darkness envelopes a room when the light is switched off (for example). But be aware that you are actually “measuring” a function of the speed of light – in the room case it is the speed at which the light leaves the room (ie c for speed of light over n refractive index of room accounting for light exit paths, absorption and reflection at boundaries, etc).

2007-03-18 09:17:23 · answer #2 · answered by Alex A 2 · 1 0

darkness is not a physical entity but an imaginary one so cannot have speed. other imaginary things which "exist" are
a moving 'point' at the two blades of a scissors as it cuts,if the blades are very long and closed quickly theoretically the point will move faster than light but only because it doesnt exist as a material object i.e a point is a virtual thing like darkness.

2007-03-18 10:17:45 · answer #3 · answered by Anonymous · 0 0

Darkness is no light, so no reflections. No light - no speed. Your question therefore does not seem to have an answer.

Others have argued that the speed of darkness is the same as the speed of light. Light is a form of energy, so no energy, no speed. But what about 'dark energy'?

2007-03-18 09:18:07 · answer #4 · answered by Rozzy 4 · 1 0

Hmm if thats a pratchett joke then the answer is twice as fast as light.
Otherwise the answer would surely be there isnt a speed of darkness as it is a lack of something rather than a mass/energy itself

2007-03-18 09:20:02 · answer #5 · answered by the mofo 4 · 1 0

it would be the same as the speed of light. Darkness would take the place of light at the same rate as the light leaving the space.

2007-03-18 09:15:13 · answer #6 · answered by R Stoofaloh 4 · 0 0

one- darkness is not a thing. it's a lack of light.

but darkness comes when there is no light, and light must leave for darkness to be there. so the speed at which light leaves is the speed of darkness. and the speed at which light leaves is the speed of light. so the speed of light is also the speed of darkness.

therefore the speed of darkness is 299 792 458 m / s

ha, don't call me a dick! i rule logic!

2007-03-18 09:16:45 · answer #7 · answered by Anonymous · 2 0

It's the same as the speed of light, only in the opposite direction.

Doug

2007-03-18 09:15:58 · answer #8 · answered by doug_donaghue 7 · 0 0

Darkness would be the speed that light is able to leave. Interesting question.

2007-03-18 09:13:46 · answer #9 · answered by gothicducks 2 · 1 0

The same as speed of light 186, 000 miles per second

2007-03-18 10:26:13 · answer #10 · answered by shy_voo 3 · 0 0

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