Flashlight at the speed of light

origin said:
We are? Why? So that we can have a universe like Star Wars or Star Trek? Unfortunately the universe does not care (at least I don't think it cares) what we want. It may be that it is simply not economically or physically feasible to get off this rock and explore other star systems. It would be kind of sad, but it is what it is.

That would also be the answer to the question, "if there are other intelligent beings in the universe where are they?" They are on their home planet unable to visit us.
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I do quite agree. The sad conclusion I think is closing in is that we are stuck on our own little lifeboat here.
 
danshawen said:
Let's up the anne on this question.

Paired entangled electrons within the same energy shell of an atom may flip spins and sometimes emit a photon as a result. These are known as hyper fine energy transitions and we know for certain they happen because we can observe such transitions with a spectrograph.

Let one of these transitions be your relativistic velocity flashlight. There isn't any question that the transition can occur because entanglement happens faster than energy propagates, or in other words, outside of the realm of the equations which describe time dilation effects related to the propagation of energy or matter.

Forget the beam of light from the flashlight. Can the entangled electrons change state or not? If they do, there is physics we must understand related to time that is beyond the bounds imposed by relativity. And it is evident that such transitions can occur.

This does not violate the single assumption on which relativity is based. But it suggests rather strongly that c is not a limit on any process which is not really dependent on the propagation of energy.
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Try googling helium hyperfine structure.

The energy spectrum of such transitions can be calculated without reference to any sort of superluminal effects
 
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