On Thursday, March 11, 2021 at 4:35:10 PM UTC-8,
beda-p...@libero.it wrote:
> > The cooking time is 5/sqrt(1-v^2/c^2) in terms of the kitchen's inertia-based coordinate system, regardless of how fast the kitchen is moving in terms of any other system of coordinates. This is the meaning of the statement "The time dilation of the clock relative to K depends only on the speed of the clock relative to K"
>
> fine with the above,
> 5/sqrt(1-v^2/c^2) in a couple made of u=0c and v=.5c means 5.773.. minutes
> whole 5/sqrt(1-v^2/c^2)in a couple made of u=.5c and v=.8c means 8,33333.. minutes
> different for each couples of u an v whose relative speed is the same value .5c
Your brain is failing you. Again (please try to concentrate) for an egg in a hot pan moving at speed v in terms of K the cooking time is 5/sqrt(1-v^2/c^2) in terms of K. This expression applies to any value of v, such as 0.5 or 0.8 or 0.9, or 0.3, etc. There is no variable "u" appearing in this expression.
> The esynchro is absolutely asynchronous...
That is a meaningless statement, because you have not defined "absolutely asynchronous".
> I suggest you to draw the simultaneity line along the x axis and you will see that
> its sloppiness is exactly v
Wow, are you a 10 year old boy? Are you just now discovering that the slope of the x' axis relative to the x axis is the same (in opposite direction) as the slope of the t' axis relative to the t axis?
> (absolute speed of he frame)
Nope, that's meaningless, because you have not defined "absolute", and even if you select one particular frame to arbitrarily designate as "absolute", it will not negate the local Lorentz invariance.
> I promise you to show a drawing...
You cannot possible imagine that anything in a spacetime diagram is going to contradict special relativity. You are just having fun re-discovering, along with every school boy, all the trivial features of Minkowski diagrams, and pretending no one ever knew these things before. Look, any system of inertial coordinates can be drawn as the x,t coordinates, and all the others can be plotted using the Lorentz transformation, and the relations are all perfectly symmetrical and reciprocal. This is a simple mathematical fact.
> let me know if you can see it
Everything about the relationships between inertial coordinate systems is perfectly well known. Nothing in Minkowski diagrams supports your irrational beliefs. The relationship between every pair of inertial coordinate systems is perfectly symmetrical and reciprocal. Do you deny this?