Re: Are *observed* SR effects real?

On Jul 18, 2:46 pm, PD <TheDraperFam...@xxxxxxxxx> wrote:
On Jul 18, 4:00 am, mluttg...@xxxxxxxxxx wrote:


I wrote:

A few days ago, you wrote:

"As the train passes by, Stan, the researcher in
the lab in town, looks out and sees the following:

1. Two flashes simultaneously, one yellow from
the back of the train and one green from the front
of the train.
2. A short time later still, a bright red flash at
the front of the train.

Tom, the researcher on the train, sees the very same
flashes (the only ones that actually happen that day),
but sees them in the following order:

3. A green flash from the front of the train.
4. A short time later, two flashes simultaneously,
one yellow from the back of the train and one red
from the front of the train."

I agree that Tom saw simultaneously a yellow and
a red flash, but he couldn't see a green flash,
because one should then assume that the moving train
was "physically" contracted. But till now, nobody
has indubitably proved that length contraction is real.

For the same reason, Stan couldn't see a green flash.

Is this your whole reaction?
Something seems to be missing!

"The green flash definitely happened. The front brush
and a certain pole zipped past each other and threw
the colored "

Marcel Luttgens
.

Relevant Pages

  • Re: Are *observed* SR effects real?
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  • Re: Are *observed* SR effects real?
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    (sci.physics.relativity)
  • Re: Are *observed* SR effects real?
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  • Re: Are *observed* SR effects real?
    ... the back of the train and one green from the front ... A short time later, two flashes simultaneously, ... contracted according to Stan. ... light, then Stan will see all three sparks, and Tom will see all three ...
    (sci.physics.relativity)
  • Re: Are *observed* SR effects real?
    ... the back of the train and one green from the front ... A short time later, two flashes simultaneously, ... contracted according to Stan. ... light, then Stan will see all three sparks, and Tom will see all three ...
    (sci.physics.relativity)