Re: So does anyone else see the meter definition as silly

"Spaceman" <Realspace@xxxxxxxxxxx> wrote
In fact, in all the experiments I have read about.
I do not see one that actually has an observer heading towards
the lightsource.(they all seem to be opposite that in thier
operation factors)

There's a variety of experiments that all work on the basic principle of
measuring the light reflected off heavenly bodies at two points in their
orbit (usually 180 degrees opposite). The body is going in the opposite
direction (relative to us) on each side of the orbit so you get one
measurement with the lightsource moving away and one moving closer. Just do
a Google on "light speed experiment" and you'll find several.

They all seem to have the lightsource moving toward the observer
and they measure the lightsource speed to the observer.

There's no difference between the lightsource moving towards the observer
and the observer moving towards the lightsource. That's just basic vector
math. The experiments where you saw the lightsource moving towards the
observer *are* experiments where the observer was heading towards the
lightsource.

But of course if you used sound the same way,
sound could be considered constant to all also like such,
since it can not leave the source at any different rate no
matter it's speed also.

Speed of sound depends on temperature and material. Observers experimenting
on the same material at the same temperature will always get the same speed
of sound. Just like observers experimenting on light in a vacuum (assuming
all vacuums are the same, which they pretty much are by definition). The
difference is that sound requires a transmission medium, so you have to
measure speed of sound against the transmission medium. Light doesn't need
a transmission medium, so motion between the observer and the vacuum is
irrelevant.

Tom.


.

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