# Who will save the theory of relativity?

The article will discuss the second postulate of the special theory of relativity (STR):
"The speed of light in a vacuum is the same in all coordinate systems moving in a straight line and uniformly relative to each other"
It turns out that this postulate can be refuted.

The video shows a summary of the essence of the contradiction:

## More rigorous explanations in the course of the experiment:

1. In accordance with the SRT relative to the resting ISO, the length of moving objects is “compressed” only along the direction of movement, in our case along the direction of movement of the platforms (axis X). At the same time, the distance along the Y axis (between the platforms) for the resting and moving ISO in accordance with the SRT remains unchanged.

2. The point of origin of the flash is in the middle of the distance between the platforms along the Y axis, and on the line passing through the centers of the platforms and perpendicular to them.

3. An event is considered simultaneous for two different ISOs if it occurs at one point in space. In accordance with the SRT, this point of space in its resting and moving ISO corresponds to its coordinates (x, y, z, t) / (x ', y', z ', t'). In our case, the movement goes along the X axis, so the expression y = y ', z = z' when converting coordinates from one ISO to another will always be true.

4. The origin of the spatial coordinates (x, y, z) / (x ', y', z ') at the initial moment of time (“Event flash” t0 = t0' = 0) for the moving and resting ISO match (i.e. are in the center of the flash).

Those. can say this: at the time of the outbreak of the outbreak at the point of its occurrence there are two virtual observers. Observer1 rests relative to ISO resting platform1. And Observer2 is at rest relative to the ISO of a moving platform2 (i.e. it moves along with platform2 relative to platform1 and at the time of the outbreak of the flash it turns out that it is at the point of its occurrence). From this moment begins the countdown in both the ISO (t0 = t0 '= 0).

## Let's start ...

This paradox was invented with the aim to show, in the simplest form, the consequences that the constancy of the speed of light entails in all ISOs. Unlike other previously discussed paradoxes, it vividly illustrates the problem and does not allow for an "alternative" interpretation, which allows it to be solved in a simple way within the framework of the SRT.

Or ... maybe there is a solution?

Are you ready to take part in the rescue of the theory of relativity? ;)