Is this Time Travel?

Originally posted by EvaDavE
Special relativity states the combined speed of motion and motion through time are always equal to the speed of light, making faster than light travel impossible. What about the EPR paradox? EPR stands for Einstein, Podolsky and Rosen, who published a paper on quantum entaglement exploring a so called "spooky action at a distance." This 'spooky action' is observed when measurments of seperate particles within a quantum system have instantaneous influence on one another. For example:

Two electrons occupy a quantum state called a spin singlet where their spin is measured along the same axis. Their quantum state is defined when measuring spin at electron A along the Z-axis as (+z), inversely rendering spin at electron B (-z) and vise versa.

Given the above entangled state, predicting spin of either electron after spin of one electron is measured can be carried out with 100% accuracy. This is known as nonlocal behavoir within a quantum system.

IMO this nonlocality signifies faster than light travel. Special relativity prohibits faster than light travel, so is this instantaneous interaction a form of time travel? With absence of time, is faster than light travel possible?

Without time, there can be no speed, so no, you cannot go faster than the speed of light. You would just be where you were trying to walk, there would be no transition.

Originally posted by debris765nju
Exactly what type of light is measured to determine the speed of light? This slice of light was photographed in my back yard by my wife. My question is this, was she time-traveling when she took it? This is a serious question about a real conundrum, how could she photograph the front, top and side of light moving at, well, the speed of light? If the speed of light is in fact variable, wouldn't that cause problems with your math? If you look at the center of the photo, just below the brightest light you might be able to see beings of light, that being the case, a passenger walking forward would in fact be moving faster than light. That brings me to m y next question, how much faster than light do you need to go to travel "in time?" Is there a scale or something to go by? How do you figure the speed of light that is stopped or moving slowly as this slice of light is? I suppose you could cop out and say the light was attached to something else, like a light to an aircraft, but i am hoping you will rise to the challenge.

this is easy as your wife moved the camera with the shutter open the light appears on more than "spot" of the frame the sweeping motion with the shutter open will cause streaks of almost anything or everything

time travel at speed of light would be useless you would be at your starting point ending point and inbetween all at the same time mmmmm spaghetti

[edit on 13-8-2008 by constantwonder]