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EINSTEINIANS MISREPRESENT EINSTEIN



 
 
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Old July 29th 11, 05:08 AM posted to sci.astro,sci.math
Pentcho Valev
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Default EINSTEINIANS MISREPRESENT EINSTEIN

For a century the answer to the question "What support did Einstein's
1905 constant-speed-of-light postulate have in 1905?" was easy in
Einsteiniana:

http://www.hawking.org.uk/index.php?...64&It emid=66
Stephen Hawking: "But a famous experiment, carried out by two
Americans, Michelson and Morley in 1887, showed that light always
travelled at a speed of one hundred and eighty six thousand miles a
second, no matter where it came from."

http://205.188.238.109/time/time100/...of_rela6a.html
Stephen Hawking: "So if you were traveling in the same direction as
the light, you would expect that its speed would appear to be lower,
and if you were traveling in the opposite direction to the light, that
its speed would appear to be higher. Yet a series of experiments
failed to find any evidence for differences in speed due to motion
through the ether. The most careful and accurate of these experiments
was carried out by Albert Michelson and Edward Morley at the Case
Institute in Cleveland, Ohio, in 1887......It was as if light always
traveled at the same speed relative to you, no matter how you were
moving."

http://www.britannica.com/EBchecked/...ial-relativity
Encyclopædia Britannica: "The fact that the speed of light is the same
for all observers is inexplicable in ordinary terms. If a passenger in
a train moving at 100 km per hour shoots an arrow in the trains
direction of motion at 200 km per hour, a trackside observer would
measure the speed of the arrow as the sum of the two speeds, or 300 km
per hour (see figure). In analogy, if the train moves at the speed of
light and a passenger shines a laser in the same direction, then
common sense indicates that a trackside observer should see the light
moving at the sum of the two speeds, or twice the speed of light (6 ×
108 metres per second). While such a law of addition of velocities is
valid in classical mechanics, the Michelson-Morley experiment showed
that light does not obey this law. This contradicts common sense; it
implies, for instance, that both a train moving at the speed of light
and a light beam emitted from the train arrive at a point farther
along the track at the same instant. Nevertheless, Einstein made the
constancy of the speed of light for all observers a postulate of his
new theory. As a second postulate, he required that the laws of
physics have the same form for all observers. Then Einstein extended
his postulates to their logical conclusions to form special
relativity."

http://www.amazon.com/Faster-Than-Sp.../dp/0738205257
Joao Magueijo: "A missile fired from a plane moves faster than one
fired from the ground because the plane's speed adds to the missile's
speed. If I throw something forward on a moving train, its speed with
respect to the platform is the speed of that object plus that of the
train. You might think that the same should happen to light: Light
flashed from a train should travel faster. However, what the Michelson-
Morley experiments showed was that this was not the case: Light always
moves stubbornly at the same speed. This means that if I take a light
ray and ask several observers moving with respect to each other to
measure the speed of this light ray, they will all agree on the same
apparent speed!"

http://www.pourlascience.fr/ewb_page...vite-26042.php
Marc Lachièze-Rey: "Mais au cours du XIXe siècle, diverses
expériences, et notamment celle de Michelson et Morley, ont convaincu
les physiciens que la vitesse de la lumière dans le vide est
invariante. En particulier, la vitesse de la lumière ne s'ajoute ni ne
se retranche à celle de sa source si celle-ci est en mouvement."

Recently the situation radically changed - even Wikipedia now teaches
that the Michelson-Morley experiment in fact confirmed Newton's
emission theory of light:

http://en.wikipedia.org/wiki/Emission_theory
"Emission theory (also called emitter theory or ballistic theory of
light) was a competing theory for the special theory of relativity,
explaining the results of the Michelson-Morley experiment. Emission
theories obey the principle of relativity by having no preferred frame
for light transmission, but say that light is emitted at speed "c"
relative to its source instead of applying the invariance postulate.
Thus, emitter theory combines electrodynamics and mechanics with a
simple Newtonian theory. Although there are still proponents of this
theory outside the scientific mainstream, this theory is considered to
be conclusively discredited by most scientists. The name most often
associated with emission theory is Isaac Newton. In his Corpuscular
theory Newton visualized light "corpuscles" being thrown off from hot
bodies at a nominal speed of c with respect to the emitting object,
and obeying the usual laws of Newtonian mechanics, and we then expect
light to be moving towards us with a speed that is offset by the speed
of the distant emitter (c ± v)."

So Einsteinians are desperately looking for something that, in 1905,
could have spoken against the variable speed of light predicted by
Newton's emission theory of light. Their newest discovery is this:

http://www.pitt.edu/~jdnorton/papers/Chasing.pdf
John Norton: "At the age of sixteen, Einstein imagined chasing after a
beam of light. He later recalled that the thought experiment had
played a memorable role in his development of special relativity.
Famous as it is, it has proven difficult to understand just how the
thought experiment delivers its results. It fails to generate problems
for an ether-based electrodynamics. I propose that Einstein's
canonical statement of the thought experiment from his 1946
"Autobiographical Notes," makes most sense not as an argument against
ether-based electrodynamics, but as an argument against "emission"
theories of light."

Pentcho Valev

 




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