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 | | From: | Sbharris[atsign]ix.netcom.com | | Subject: | Re: Hansen discovers how to reason. | | Date: | 22 Jan 2005 20:18:24 -0800 |
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 | All the early gas laser measurements of the speed of light depended on
light from moving sources-- the atoms in the hot gas in the laser
cavity, for example neon atoms in a He-Ne laser. These are moving at
around 1/100,000 c in directions random to the beamline. If this
affected the speed of the emitted beam, one couldn't measure that speed
to better than 1 part in 10^5, because the product of frequency and
wavelength (ie, the speed) would be too broad to do it better.
Unfortunately for your argument, it was no problem to do it to better
than 10^7, even before iodine absorption was used to lock the cavity
frequency.
Come on, the electrons emitting the beam in a synchrotron light source
are moving at nearly c. If speeds were additive in the least,
synchrotron radiation, which emerges tangentially in the direction of
the electron motion, would emerge at twice the speed of light. But such
sources have fequency and wavelength precisely measured, in order to do
X-ray crystallography and such. You think people wouldn't have noticed
that the frequency and wavelength of synchrotron light didn't multiply
out to c? But instead this fast light had f and lamba which multiplied
out to 2 c?
SBH
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| | From: | Androcles | | Subject: | Re: Hansen discovers how to reason. | | Date: | Sun, 23 Jan 2005 19:31:50 GMT |
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"Sbharris[atsign]ix.netcom.com" wrote in
message news:1106453904.538211.141080@c13g2000cwb.googlegroups.com...
> All the early gas laser measurements of the speed of light depended on
> light from moving sources-- the atoms in the hot gas in the laser
> cavity, for example neon atoms in a He-Ne laser.
All the early phonograph measurements of the speed of sound depended on
sound from moving sources-- the 78 rpm records on the turntable, for
example Al Jolson singing "Old Man River".
Come back when you've something sensible to say.
Androcles.
These are moving at
> around 1/100,000 c in directions random to the beamline. If this
> affected the speed of the emitted beam, one couldn't measure that
> speed
> to better than 1 part in 10^5, because the product of frequency and
> wavelength (ie, the speed) would be too broad to do it better.
> Unfortunately for your argument, it was no problem to do it to better
> than 10^7, even before iodine absorption was used to lock the cavity
> frequency.
>
> Come on, the electrons emitting the beam in a synchrotron light source
> are moving at nearly c. If speeds were additive in the least,
> synchrotron radiation, which emerges tangentially in the direction of
> the electron motion, would emerge at twice the speed of light. But
> such
> sources have fequency and wavelength precisely measured, in order to
> do
> X-ray crystallography and such. You think people wouldn't have noticed
> that the frequency and wavelength of synchrotron light didn't multiply
> out to c? But instead this fast light had f and lamba which multiplied
> out to 2 c?
>
> SBH
>
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