What is the Speed of Dark?


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The Exchange

Any thoughts? It suddenly occurs to me that everything has a solution, especially the ones we are told that have no solution.

How about C meters per negative second? The idea of anti time coming into play.
Or C meters per second (as opposed to meters per second squared). The idea that dark is light that isn't as awesome as light.


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Well, it's slower than the speed of Stupid (nothing is faster than Stupid), but it exceeds the velocity of an unladen grue (both European and African varieties).

Liberty's Edge

Darkness is the absence of light, just like stupid is the absence of GOOGLE IT!

RPG Superstar 2012

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This question is something I've always been in the dark about.

It's quite the interesting dark matter, if you ask me.

Sometimes I doubt my own commitment to Darkle Motion, though.

Silver Crusade

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yellowdingo wrote:

Any thoughts? It suddenly occurs to me that everything has a solution, especially the ones we are told that have no solution.

How about C meters per negative second? The idea of anti time coming into play.
Or C meters per second (as opposed to meters per second squared). The idea that dark is light that isn't as awesome as light.

I'm not sure you are looking for an answer (or at least a serious answer). In the off chance that you are, I will bite.

First of all, c is a physical constant, not a number. Adding units to it is nonsense; the units are part of the constant. In particular, "c m/s" is nonsense.

Second, units of m/(-s) is equivalent to -m/s. That is, traveling with the same speed but in the opposite direction. Do you call South "anti North"? If not, then there is no reason that running time in reverse would be called "anti time". This notion also does not solve the problem you are looking at.

Third, darkness is the absence of light. It is not anti light, or negative light. It is zero light. Assuming for the moment that true darkness can actually be achieved (which it cannot, but I won't go into), the speed at which it will propagate through the physical universe is exactly the speed of light, as it follows on the heels of the boundary photons. I will say that again: darkness has speed c (or would have, if it could be achieved).

Lastly, I don't know what the units of m/s^2 could possibly have to do with this question.


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*lowers quote card*

"Light thinks it travels faster than anything but it is wrong. No matter how fast light travels, it finds the darkness has always got there first, and is waiting for it."
~ Terry Pratchett

The Exchange

Agreed! If Light was the fastest you can travel, how is Dark there? And why Is dark there after it goes away if light is perceivable to be at light speed from your speed no matter your speed? if you take a source of light away from a location the light drops off to become dark, so how much energy is the source of light loosing that it cannot cross that distance.

You say Dark is the absence of Light but that means Dark is NOT Light

Light/0 equals NOT Light and in that case at superposition Dark would be Light so that's like saying the only thing differentiating Light from Dark is the Particle Spin. Light is one side of the coin flip and Dark the other.


Ambrosia Slaad wrote:
Well, it's slower than the speed of Stupid (nothing is faster than Stupid), but it exceeds the velocity of an unladen grue (both European and African varieties).

Bad news actually travels fastest. You'd never want to power a ship with it though, cause no one will want you to show up.

Liberty's Edge

Wow, do you even physics bro?


YD thinks that superposition means he's potentially Isaac Newton.


yellowdingo wrote:

Any thoughts? It suddenly occurs to me that everything has a solution, especially the ones we are told that have no solution.

How about C meters per negative second? The idea of anti time coming into play.
Or C meters per second (as opposed to meters per second squared). The idea that dark is light that isn't as awesome as light.

Um...darkness does not move....the illusion of movement is actualy the movement of light.

So I guess technicaly darkness moves at a equal speed to light.

I think you should experiment. Go to a room with no exterior windows and such, block out any light coming from the edges around the door(use a towel) and flip the light switch a couple of thousands of time and time it.

You will also need a control group so you'll need to this also in a well lighted room.


Not sure if this guy is a troll or he just never learned basic physics...


Your question is as intelligible as"If a train moves at x speed, how fast does the absence of the train move?"

A fun little exercise in zen though, I guess :)


been watching the never ending story 2 ?


Irontruth wrote:
Ambrosia Slaad wrote:
Well, it's slower than the speed of Stupid (nothing is faster than Stupid), but it exceeds the velocity of an unladen grue (both European and African varieties).
Bad news actually travels fastest.

False news is pretty quick, too


Darkness is already waiting everywhere for the Light to die. Once that happen Darkness shall take over the world forever!

RPG Superstar 2012

That's dark, man.


An interesting question.

What does basic physics say?

Silver Crusade

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I don't know about the speed of dark, but I know a thing or two about the speed of night.

RPG Superstar 2012

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Bonnie Tyler > Crackpot Physics


John Kretzer wrote:
yellowdingo wrote:

Any thoughts? It suddenly occurs to me that everything has a solution, especially the ones we are told that have no solution.

How about C meters per negative second? The idea of anti time coming into play.
Or C meters per second (as opposed to meters per second squared). The idea that dark is light that isn't as awesome as light.

Um...darkness does not move....the illusion of movement is actualy the movement of light.

So I guess technicaly darkness moves at a equal speed to light.

I think you should experiment. Go to a room with no exterior windows and such, block out any light coming from the edges around the door(use a towel) and flip the light switch a couple of thousands of time and time it.

You will also need a control group so you'll need to this also in a well lighted room.

Ah, but our neurons process information far slower than the speed of light (or dark )(or stupid), so no useful information can be gleaned from the experiment as you suggest it.


Ambrosia Slaad wrote:

Ah, but our neurons process information far slower than the speed of light (or dark )(or stupid), so no useful information can be gleaned from the experiment as you suggest it.

Um...sure it will be useful.

It should keep yellowdingo entertained for a couple of hours.

But yes you are right...there would be no infomation.


John Kretzer wrote:
Ambrosia Slaad wrote:

Ah, but our neurons process information far slower than the speed of light (or dark )(or stupid), so no useful information can be gleaned from the experiment as you suggest it.

Um...sure it will be useful.

It should keep yellowdingo entertained for a couple of hours.

But yes you are right...there would be no infomation.

No new useful information. After flicking the lights on and off thousands of times, he'll likely learn this. -20 points to House Chaos for linking to a Gawker site.

The Exchange

littlehewy wrote:

Your question is as intelligible as"If a train moves at x speed, how fast does the absence of the train move?"

A fun little exercise in zen though, I guess :)

Zero Time.


A bit faster than the top speed of Red Dwarf if the Cat was being literal.

Spoiler:
It was in the first episode of season 10 - they found a derelict ship that was far superior to Red Dwarf and the Cat suggested trading up.

"This things gotta be better than Red Dwarf. That crate's slower than the speed of dark."

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