## Einsteins Relativity

NewsPosted by J. Balslev 2011-02-17 08:56Is anyone able to answer these questions!

What is the length of the coordinates in the two inertial systems S and S' at the velocity *v*, according to relativity - if the length of the coordinates are identical at *v* = zero?

1) Is the physical length of the coordinates greatest in S?

2) Is the physical length of the coordinates greatest in S'?

3) Is the physical length of the coordinates in S equal to the physical length of the coordinates in S'?

If the physical lengths are identical, will it then be possible to have any physical length contractions according to relativity? Or, in other words, have you ever experienced a length contraction because of the movement of another coordinate system?

If it isn't possible to have any length contractions according to relativity, how can relativity then explain the relativistic experiments where a Lorentz contraction occurs?

## Posted by Edward 2011-02-27 23:07

Yes! - as the two coordinate systems are completely identical, except for their names, you may interchange them if you want. That is to say that the length contractions and time dilations must be completely identical in the two systems. So the reason for the length contractions is not the relative velocities of the coordinate systems to one another, but their velocities relative to the zero-point field.