What does E=mc^2 mean?

Phase-shift is not altering speed my friend:)

Modulation is also know as frequency in this form..

Let play with light bugs..... There are two types here..one of Red(pick your shade)on of blue. The c is valid..again where talking reality.

The Red type moves up and down at a particular modulation say 7000nm
The Blue type moves at 4500nm

Which gets there first? Now remember they are vibrating, oscillating modulating.

Whats the shortest path?

-BaC

Where did I alter it? FSL <--I don't believe the way they sated it. Was just to show everyone has their own theories.

In real life..yep here on Mother Earth it is a constant to you....

I don't live(per se) in the same world that you do...I just connect the dots.

-BaC

So the speed of light is a constant to which we measure the relative....connect the dots by all means but are the dots numbered?

If you need them to be my son....

-Marc

BaCardi - you should not thank me for losing patience.

By the way, are you in the pay of an alcoholic drinks company?

Xris - Yep, me too and we have a couple of good questions still outstanding. However, one of your questions was about how light can be slowed. This is my version and it won't matter too much if my memory is a bit faulty on the facts.
Long ago a machine was made using a beam of light and rotating mirrors to measure the speed of light and after many adjustments it gave consistent results but the scientists noticed a very strange thing about the results as it did not seem to matter in what direction or in what circumstances the measurements were done, the result was always the same. The machine was so accurate it should have detected the rotational surface speed of the planet and, or the orbital speed of the planet around the sun. At first this was explained as some kind of experimental aberration but slowly it dawned that the results were real.
All hell broke out in the scientific world because these results were rocking the very foundation of physics. After all, this meant that time based calculations of speed were not additional or whatever in all circumstances. As mathematics did not work any more learned people were ready to tear out the foundations. If this forum had existed then it would have attracted the attention of everyone from scientists to mystics (maybe as it does now you might say).
Some got close but along came our hero of this story, Einstein, who bravely suggested that the only explanation was that fundamentally time must be different in each circumstance of each experiment and he gave pretty good mathematical directions on how to correct time for each experiment. As you can imagine it went down like a lead balloon. However, it began to dawn that maybe this fellow was correct because he also made some stunning mathematical predictions about the bending of light and the precession of the planet Mercury. All of a sudden mathematics worked again and most scientists breathed easy. But Einstein did not just introduce new mathematics, oh no, he also introduced a new concept that the very presence of a large mass, or gravity , is the reason that these corrections need to be made and similarly so with speed. So, it wasn't then just a bit of mathematical hocus-pocus that made him great but the introduction into physics of a fundamental and fantastic new concept supported by mathematics. Since then science has progressed at a blistering pace and without these advances I would not be able to communicate on a machine like this ('B' thing).
However, there is an ironic postscript to this story because it turns out the experiments to measure the speed of light did not determine the speed correctly as it was not strictly speaking light at all that was being measured. It just shows you can start with a bunkum model and still get it correct, which was something I think James Clerk Maxwell knew all along.

I hope this helps

Xris - Yep, me too and we have a couple of good questions still outstanding. However, one of your questions was about how light can be slowed. This is my version and it won't matter too much if my memory is a bit faulty on the facts.
Long ago a machine was made using a beam of light and rotating mirrors to measure the speed of light and after many adjustments it gave consistent results but the scientists noticed a very strange thing about the results as it did not seem to matter in what direction or in what circumstances the measurements were done, the result was always the same. The machine was so accurate it should have detected the rotational surface speed of the planet and, or the orbital speed of the planet around the sun. At first this was explained as some kind of experimental aberration but slowly it dawned that the results were real.
All hell broke out in the scientific world because these results were rocking the very foundation of physics. After all, this meant that time based calculations of speed were not additional or whatever in all circumstances. As mathematics did not work any more learned people were ready to tear out the foundations. If this forum had existed then it would have attracted the attention of everyone from scientists to mystics (maybe as it does now you might say).
Some got close but along came our hero of this story, Einstein, who bravely suggested that the only explanation was that fundamentally time must be different in each circumstance of each experiment and he gave pretty good mathematical directions on how to correct time for each experiment. As you can imagine it went down like a lead balloon. However, it began to dawn that maybe this fellow was correct because he also made some stunning mathematical predictions about the bending of light and the precession of the planet Mercury. All of a sudden mathematics worked again and most scientists breathed easy. But Einstein did not just introduce new mathematics, oh no, he also introduced a new concept that the very presence of a large mass, or gravity , is the reason that these corrections need to be made and similarly so with speed. So, it wasn't then just a bit of mathematical hocus-pocus that made him great but the introduction into physics of a fundamental and fantastic new concept supported by mathematics. Since then science has progressed at a blistering pace and without these advances I would not be able to communicate on a machine like this ('B' thing).
However, there is an ironic postscript to this story because it turns out the experiments to measure the speed of light did not determine the speed correctly as it was not strictly speaking light at all that was being measured. It just shows you can start with a bunkum model and still get it correct, which was something I think James Clerk Maxwell knew all along.

I hope this helps

The question of mass and energy being related to time for me is the most interesting..I am told the greater the mass the slower the time...from this can we assume the BB was infinitly slower than the model that we are told? if time slows in relation to the mass or energy..in my humble opinion the big bang in relative terms could be an event that was virtually stagnant...The observer ..us..would only see time passing at our rate but in fact it could have been occuring for infinity at a relative time to the actual occurence...do i make myself clear?

Certain poster might know but he is so far up the valley or is it the pass he will never make sense to me or you..

Steerpike -As speed of an object (say a sub-atomic particle) approaches the speed of light it gains mass. It also experiences time-dilation. At the Big Bang, matter didn't necessarily exist yet. So that expansion is not necessarily directly tied to matter. Spacetime (the three extended spatial and one extended non-spatial dimension) expanded and the energy (and mass once it existed) would have then expanded within spacetime with energy moving at the speed of light and matter moving at sub-light speed.

Not exactly. As speed of an object (say a sub-atomic particle) approaches the speed of light it gains mass. It also experiences time-dilation. At the Big Bang, matter didn't necessarily exist yet. So that expansion is not necessarily directly tied to matter. Spacetime (the three extended spatial and one extended non-spatial dimension) expanded and the energy (and mass once it existed) would have then expanded within spacetime with energy moving at the speed of light and matter moving at sub-light speed.



Who?