Re: one way light speed


Martin Hogbin wrote:
<nobody1357@xxxxxxxxxxxxx> wrote in message news:1162725683.365637.109060@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Martin Hogbin wrote:
<nobody1357@xxxxxxxxxxxxx> wrote in message news:1162712385.097629.136390@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Imagine a particle accelerator that is not a circle but a very long
line. This can not accelerate a particle faster than c in any
direction.

Are you stating this as an experimental result or as a
condition of your gedanken experiment?

As an experimental result that matter cannot outrun light.


Clock sychronization does determine how the speed of this
particle is measured, but with an array of clocks sychronized the same
way, it is measured that succesive accelerations do not cause equal
speed increase, so there is a speed limit, which is not infinite. If
this particle is put in a race with light, it arrives just after light,
so this speed limit is the same as one way speed of light. So at least
it is certain that one way speed of light can not be inifinite in any
direction, correct?

The answer to your question depend on what clock
synchronisation convention you use.

Martin Hogbin

Cosider this setup:
A----------B
Distance is 300000 km. Clock A is reset and a light signal sent to
clock B. It is at first assumed that speed of light is infinite, so
clocks are assumed synchronized. When a light signal is sent from B to
A, delta time is found to be 2 seconds. It is assumed that aether wind
or something caused light speed to go down to 150000 km/sec in this
direction. Then, a particle at A is accelerated towards B. When the
speed in fact reaches 300000 km/sec, according to these clocks the
speed is measured as infinite, but it didn't take infinite time or
energy to do that, so it can be concluded that something is wrong with
this synchronization convention and one way speed of light cannot be
infinite, I think.

.

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