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http://www.perimeterinstitute.ca/pdf/files/975547d7-2d00-433a-b7e3-4a09145525ca.pdf
John Stachel: "It is not so well known that there was "another
Einstein," who from 1916 on was skeptical about the continuum as a
foundational element in physics, especially because of the existence
of quantum phenomena."

The problem that tortured "the other Einstein":

http://philsci-archive.pitt.edu/archive/00001743/02/Norton.pdf
John Norton: "How could we ignore the possibility of a connection
between Einstein's reflections on an emission theory of light and his
1905 postulation of the light quantum hypothesis? But what might that
connection be?"

A straightforward answer given by Banesh Hoffmann, Einstein's apostle:

http://books.google.com/books?id=JokgnS1JtmMC
"Relativity and Its Roots" By Banesh Hoffmann
p.92: "Moreover, if light consists of particles, as Einstein had
suggested in his paper submitted just thirteen weeks before this one,
the second principle seems absurd: A stone thrown from a speeding
train can do far more damage than one thrown from a train at rest; the
speed of the particle is not independent of the motion of the object
emitting it. And if we take light to consist of particles and assume
that these particles obey Newton's laws, they will conform to
Newtonian relativity and thus automatically account for the null
result of the Michelson-Morley experiment without recourse to
contracting lengths, local time, or Lorentz transformations. Yet, as
we have seen, Einstein resisted the temptation to account for the null
result in terms of particles of light and simple, familiar Newtonian
ideas, and introduced as his second postulate something that was more
or less obvious when thought of in terms of waves in an ether."

Pentcho Valev wrote:

http://www.nybooks.com/articles/20279
Lee Smolin: "It is also disappointing that none of the biographers
mention the writings that lead John Stachel, the founding editor of
the Einstein Papers project, to speak of "the other Einstein". These
writings look beyond his struggles with the unified field theory..."

"The other Einstein" was the honest (but weaker) moiety of Einstein's
split personality that was sorry for having destroyed theoretical
physics by procrusteanizing it into conformity with his 1905 false
light postulate:

http://en.wikisource.org/wiki/The_Development_of_Our_Views_on_the_Composition_and_Essence_of_Radiation
The Development of Our Views on the Composition and Essence of
Radiation by Albert Einstein, 1909
"A large body of facts shows undeniably that light has certain
fundamental properties that are better explained by Newton's emission
theory of light than by the oscillation theory. For this reason, I
believe that the next phase in the development of theoretical physics
will bring us a theory of light that can be considered a fusion of the
oscillation and emission theories. The purpose of the following
remarks is to justify this belief and to show that a profound change
in our views on the composition and essence of light is
imperative.....Then the electromagnetic fields that make up light no
longer appear as a state of a hypothetical medium, but rather as
independent entities that the light source gives off, just as in
Newton's emission theory of light......Relativity theory has changed
our views on light. Light is conceived not as a manifestation of the
state of some hypothetical medium, but rather as an independent entity
like matter. Moreover, this theory shares with the corpuscular theory
of light the unusual property that light carries inertial mass from
the emitting to the absorbing object."

http://www.pbs.org/wgbh/nova/einstein/genius/
"Genius Among Geniuses" by Thomas Levenson
"And then, in June, Einstein completes special relativity, which adds
a twist to the story: Einstein's March paper treated light as
particles, but special relativity sees light as a continuous field of
waves. Alice's Red Queen can accept many impossible things before
breakfast, but it takes a supremely confident mind to do so. Einstein,
age 26, sees light as wave and particle, picking the attribute he
needs to confront each problem in turn. Now that's tough."

http://www.perimeterinstitute.ca/index.php?option=com_content&task=view&id=317&Itemid=81&lecture_id=3576
John Stachel: "Einstein discussed the other side of the particle-field
dualism - get rid of fields and just have particles."
Albert Einstein 1954: "I consider it entirely possible that physics
cannot be based upon the field concept, that is on continuous
structures. Then nothing will remain of my whole castle in the air,
including the theory of gravitation, but also nothing of the rest of
contemporary physics."
John Stachel's comment: "If I go down, everything goes down, ha ha,
hm, ha ha ha."

http://www.pitt.edu/~jdnorton/papers/companion.doc
John Norton: "Einstein could not see how to formulate a fully
relativistic electrodynamics merely using his new device of field
transformations. So he considered the possibility of modifying
Maxwell's electrodynamics in order to bring it into accord with an
emission theory of light, such as Newton had originally conceived.
There was some inevitability in these attempts, as long as he held to
classical (Galilean) kinematics. Imagine that some emitter sends out a
light beam at c. According to this kinematics, an observer who moves
past at v in the opposite direction, will see the emitter moving at v
and the light emitted at c+v. This last fact is the defining
characteristic of an emission theory of light: the velocity of the
emitter is added vectorially to the velocity of light emitted....If an
emission theory can be formulated as a field theory, it would seem to
be unable to determine the future course of processes from their state
in the present. AS LONG AS EINSTEIN EXPECTED A VIABLE THEORY OF LIGHT,
ELECTRICITY AND MAGNETISM TO BE A FIELD THEORY, these sorts of
objections would render an EMISSION THEORY OF LIGHT INADMISSIBLE."

http://www.ekkehard-friebe.de/wallace.htm
Bryan Wallace: "Einstein's special relativity theory with his second
postulate that the speed of light in space is constant is the linchpin
that holds the whole range of modern physics theories together.
Shatter this postulate, and modern physics becomes an elaborate
farce!....The speed of light is c+v."

Pentcho Valev
pvalev@yahoo.com