Saturday, November 15, 2014

frozen light wave Einstein's Pathway to Special Relativity

 

1) 1955, Autobiographische Skizze: The thought experiment was recounted by Einstein in his Autobiographische Skizze, written a month before he died in March 1955: 24 "During this year in Aarau the following question came to me: if one chases a light wave with the speed of light, one would have in front of him a time independent wave field. Such a thing seems however not to exist! This was the first childish thought experiment that was related to the special theory of relativity."

In his Autobiographical notes Einstein explained that much later "reflections of this type [that a "radiation must, therefore, posses a kind of molecular structure"] made it clear to me as long as shortly after 00 […] that neither mechanics nor electrodynamics could (except in limiting cases) claim exact validity."26

 
He was looking for a general principle for the electrodynamics of moving bodies, a principle of the kind one finds in thermodynamics. "After ten years of reflection such a principle resulted from a paradox upon which I had already hit at the age of sixteen: If I pursue a beam of light with a velocity c (velocity of light in a vacuum), I should observe such a beam of light as an electromagnetic field at rest though spatially oscillating. There seems to be no such thing, however, neither on the basis of experience nor according to Maxwell's equations."28

[PDF]Einstein Chases a Light Beam - arXiv.org

arxiv.org/pdf/1204.1833
arXiv
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by G Weinstein - ‎2012 - ‎Related articles
Written while I was at The Center for Einstein Studies, Boston University ..... be no such thing as a frozen light wave on the basis of his "invention": his ability to.

 

Einstein's Pathway to Special Relativity

www.pitt.edu/~jdnorton/...Jan.../index.html
University of Pittsburgh
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The basic thought is clear. If Einstein were to chase after a propagating beam of light at c. propagating light. he would see a frozen light wave. frozen light wave.
 
The creation of the electric field draws on details of Maxwell's theory that need not distract us here. Briefly, as the magnet moves past a fixed point in the ether, the magnetic field strength changes with time at that point. That change in field strength, according to Maxwell's theory, creates an electric field.

Einstein's Pathway to Special Relativity

www.pitt.edu/~jdnorton/...Jan.../index.html
University of Pittsburgh
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