Re: variable speed of light

Here we go again:-)


I have a new question though before the repeat,

How does the inverse doppler effect, effect all this?



New look for the Doppler effect.

http://physicsweb.org/article/news/7/11/16



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Hi there, you might like my little file/tutorial I've put together on
current measurments of light.

Lab tests tenets' limits

http://www.nature.com/nsu/030428/030428-20.html  

Seven years ago, the US physicist Freeman Dyson looked at the
radioactive decay products of a spontaneous nuclear chain reaction
about two billion years ago in natural uranium deposits in Gabon. He
used the results to estimate the value of alpha at that time. He
concluded that it could not have differed from the present-day value
by a factor of more than one ten-billionth - a rate of change of
around 0.5x10-16 per year.

Harold Marion and colleagues at the Observatoire de Paris in France,
and James Bergquist and co-workers at the National Institute of
Standards and Technology in Boulder, Colorado, have ruled out any
change greater than between 7x10-15 and 7x10-16 per year.


New Experimental Limit on the Photon Rest Mass with a Rotating Torsion
Balance

http://link.aps.org/abstract/PRL/v90/e081801

New upper limit on photon mass of 1.2×10-51g



A New Limit on Photon Mass

http://www.aip.org/enews/physnews/2003/split/625-2.html

A new limit on photon mass, less than 10-51 grams or 7 x 10-19
electron volts, has been established by an experiment in which light
is aimed at a sensitive torsion balance



The speed of light is constant in all directions

Lorentz Violations? Not Yet 

http://www.aip.org/enews/physnews/2003/split/623-2.html

The Stanford group sees no such anisotropy at the level of 10-13 for
velocity-independent terms, and at the 10-9 level for
velocity-dependent terms.


Finding the Speed of Light with Marshmallows

http://www.bowlesphysics.com/marsh.htm