Advanced and Delayed magnetic field's.

[Pirate88179]

Foe example-if some one was to switch on a torch for .1 of a second and switch it of again,and we could watch that beam of light travel through space,we would see a beam of light that was X mile's long-has a start and end-->it wouldnt be an infinite beam of light.

Ah, Tinman, not to bring Einstein into this but, what that short burst of light would look like would be dependent on your (the observer) position/velocity relative to that burst of light.

My 2 cents,

Bill

[NoBull]

We observe in experiments that accelerating even very light particles to high fractions of C takes tremendous energy.  We observe that it takes exponentially more energy the closer to C that we get i

Note that all these experiments use EM forces to accelerate these particles.

[MarkE]

Note that all these experiments use EM forces to accelerate these particles.

Rubber bands aren't available in Humungous size. 

[tinman]

Do you know of any experimental evidence that there is a finite upper limit on the kinetic energy of a mass at light speed or beyond?

Do you know of any experimental evidence that there is not a finite upper limit on the kinetic energy of a mass at light speed or beyond. Keeping in mind that unless some one has managed light speed,then no such evidence in either direction exist. All is theory until proven to be fact.

[tinman]

Ah, Tinman, not to bring Einstein into this but, what that short burst of light would look like would be dependent on your (the observer) position/velocity relative to that burst of light.

My 2 cents,

Bill

Indeed it would. But as we are traveling through space at a very high speed,our point of observation would be continually changing.