RE: Whats the speed of Dark ?
yeah, well thats a clue, as to the answer, the famous E=m(C*C) is not the complete version, and is pretty hopeless, mathmatically(in these situations), and really wouldnt be used in that form,by physicists). Of course it can be converted to anything you want, related to energy.
gravity is defined as being the acceleration felt by 1kg in one second thus g in units is kg/m/(s*s)
this you can see is made up mass, time, and velocity.
you need to experience some velocity to experience an accleration.
If a torch was stable at the speed of light, the light the torch produces would in fact emit as would be expected, because it is in a state of equilibrium.
this all depends on whether you are holding the torch, also travelling at the speed of light, or watching the torch shoot past you at the speed of light……..the example we were taught was someone shining a torch up and down a train, as you watched the train come past…….the same thing.
darkness must be composed of particles, which are not allowed to radiate photon(light) particles/waves(dependng on which side of the fence you sit on). There must be somthing special about the particles which restrict this energy emission. Basically its because a particle does not receive enough energy to allow the emission of a photon.
So, you have inherent energy and you have given energy..inherent energy produces an equilibrium state. given energy must produce a change in state, positive or negative.
You can then see that particles, not supplied with extra energy (i.e. heating) still travel at the speed of light, but they do not have the energy to irradiate photons.
so the answer is 300 000 000 m/s give or take a few. This is in a perfect vacuum, it reduces a bit if there is air resistance, but negligibly so…..
coanda
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