DimaMazin

Americans can create desinformation to reduce a help to Ukraine.

Ukrainians have bigger problem than bad opinion of people of Berlin and Washington.

Only due to Ukraine and NATO.

Merkel destroyed German army therefore it cannot to protect Germany.

Did you mean they are Ukrainians? Merkel replaced Budapest Memorandum by Minsk agreements. She explained that Russia is not the side of the conflict therefore France and Germany should solve the problem instead of USA and UK. Obama supported Merkel.Didn't it?

Merkel was supporting Putin. Why Russian troops should not do the same at their level?

I think that is important because we can imagine any non-simultaneity between two points on distance as velocity or as instant pure acceleration to the velocity. When we transform the non-simultaneity in S' then we get the same only future and past are opposite because the velosity is opposite in S'. We can transform other non-simultaneities into other velosities or into their instant pure accelerations when the velosities are bigger than c . Only then for transform in the S' we should use relativistic addition of velosities .

I have got so complex equation for definition of sine of the angle a ,but I am not sure it is correct. 4sin2 +4sin*cos-2sin-Pi*sin+Pi*cos-2cos=0 If we use Genady's definition then we can approximately check it. I have used method of disproportionate division of segment of angle Pi/2 (area of wich is (Pi-2)/4) and second part of the sector of the angle Pi/2 ,area of wich is 1/2. It is when angle a and angle Pi/2 -a disproportionately divide the parts. Then every of the 4 parts has the same disproportionate unknown(for 2 parts it is u and for 2 other parts it is -u). It is not working for definition sine and cosine of 1 radian relative to Pi, therefore rather it is nonsense.

a = (Pi - 2)/4 + sin(a) a is unknown angle(rad) in unit circle a/2 is area of sector of angle a (Pi-2)/8 is area of segment of angle a

What exists of your any?

Biden's promises are stretched out over time, so they are not real deliveries.

Our non-simultaneity works exectly like Minkowski's model of light cone. https://www.youtube.com/watch?v=0hj8ZCQtrpU

Then I don't understand how it was useful for Einstein. Maybe smoking people get be old earlier. Criminals and non-criminals is some relative thing. A war is useful also, but it works like probability and decimation.

It is impossible to get sailors to eat sauerkraut when the officers do not eat it. Therefore smoking should be forbidden for officials and deputies.

Yes, in gradual negative acceleration the train stretches during long time.

I think in moving frame the train should stretch again. Therefore forward part of the train stoped earlier in S'.Because forward part of the train (in S) is backward part of the train in S'. Maybe you are correct but then you should correctly remake the model.

Now I think it is beter to define equation for non-simultaneity t=(L-L/gamma)/v=(gamma-1)L/(gamma*v) then the equation of non-simultaneity is t = t0 + (gamma-1)x/(gamma*v) then we should translate the non-simultaneity of frame S in frame S'.

If instantaneous acceleration does not exist then acceleration cannot exist at all. We try to use magic acceleration to search key for development of SR. I see no sence to comlicate the problem by gradual acceleration and then to go back by the complex way to get the same.

Thank you for your definition which is correct. I think the same. Any such 'velocity' is proportional non-simultaneity on proportional distance. I think the 'velocity' is the same in frame S' when local forces brake the train which is in S .

The experiment can be done on very long spacestation in space between galaxy clusters. I am wrong there. I have confused.

Theoreticaly no. Because velosity of the wave of the acceleration = (gamma +1)v/gamma For example gamma=2 v=31/2c/2 velosity of wave acceleration=3*31/2c/4 Local forces accelerate the train. Therefore no force travels faster than c. Why velosity of wave of acceleration can be faster than c? Because local forces don't need to wait when light crosses already contracted part of the train.

Correct. But not in my case. Because in my case the force of acceleration propagates from backward car to forward car at such velosity (I will define it) when the cars do not interact each other. There is no interaction between the cars therefore it is called by simultaneity. I have described the simultaneity by equation. Each railway carryage can have its engine. Therefore force of acceleration does not need to be transferred.

If we want to accelerate very long train, instantly accelerating each railway carryage into a moving frame at v, then we should accelerate them simultaneously in neutral simultaneity. t =to + (gamma -1)*x/(v*gamma)

Is that caused by delay of weapons for Ukraine?

Thanks. I thought black hole mass is defined without its KE like partcle mass. It deluded me.