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This essay is an original work by W. Jim Jastrzebski.
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This essay is an original work by '''W. Jim Jastrzebski'''.
    
:[[User:JimJast|JimJast]] 09:43, 22 August 2011 (EDT)
 
:[[User:JimJast|JimJast]] 09:43, 22 August 2011 (EDT)
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Einstein's universe is Einstein's stationary (or "static" as some cosmologists call it) model universe of 1917.  
 
Einstein's universe is Einstein's stationary (or "static" as some cosmologists call it) model universe of 1917.  
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To keep Einstein's field equation of this stationary model stable, and not knowing yet about the ''"[[Hubble time dilation]]"'', discovered by Edwin Hubble over a decade later, and suggesting to some cosmologists that the universe might be expanding, Einstein added his ''"cosmological constant"'' to his field equation that stopped the alleged expansion of his model universe. Later he called this cosmological constant ''"the biggest blunder of his life"'' (for a possible reason that there was a simpler way of getting rid of illusion of expansion).  
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To keep Einstein's field equation of this stationary model stable, and not knowing yet about the ''"[[Hubble time dilation]]"'', discovered by Edwin Hubble over a decade later, and suggesting to some cosmologists that the universe might be expanding, Einstein added his ''"cosmological constant"'' to his field equation that stopped the alleged expansion of his model universe. Later he called this cosmological constant ''"the biggest blunder of his life"''.  
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In 1985 the ''"cosmological constant"'' turned out to unnecessary since it turned out that the Hubble redshift might be not caused by expansion of the universe but by the time runing slower at the deep space galaxies in curved space, which according to ''Einsteinian gravitation'' simulates accelerating expansion of space with <math>dH(t)/dt=-H_o^2/2</math> as observed in 1998 by the Supernova Cosmology Project team of astronomers and therefore predicted by ''Einsteinian gravitation'' over 80 years earlier.
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In 1985 the ''"cosmological constant"'' turned out to be unnecessary since it turned out that the Hubble redshift might be not caused by expansion of the universe but by the time runing slower at the deep space galaxies in curved space, which according to ''Einsteinian gravitation'' (see below) simulates accelerating expansion of space with <math>dH(t)/dt=-H_o^2/2</math> as observed in 1998 by the Supernova Cosmology Project team of astronomers and therefore predicted by ''Einsteinian gravitation'' over 80 years earlier.
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The agreement of value of alleged acceleration of space with the results of observations of Supernova Cosmology Project within one standard deviation suggest that the expansion of universe is an illusion but the news has been never published yet as far as I know.
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The agreement of value of alleged acceleration of space with the results of observations of Supernova Cosmology Project within one standard deviation suggest that the expansion of universe is an illusion but the news has been never published yet.
    
All the above is the part of ''Einsteinian gravitation'' that began in 1917 with Einstein's invention of his cosmological constant, that allowed him to stabilize his field equation making the eternal universe a practical possibility. Not for long though since around 1929 Edwin Hubble discovered cosmological redshift that astronomers started to consider a sign that the universe is expanding. Then Einstein gave up working on his universe and it has been forgotten for some time. Einstein told his secretary not to let in anyone who wants to talk to Einstein about the universe<ref>Story told to the author by Roy J. Blauber who was at the time Einstein's assistant in Princeton University in N.J. and later, for one year, author's physics teacher at Harvard, Cambridge, MA.</ref>.
 
All the above is the part of ''Einsteinian gravitation'' that began in 1917 with Einstein's invention of his cosmological constant, that allowed him to stabilize his field equation making the eternal universe a practical possibility. Not for long though since around 1929 Edwin Hubble discovered cosmological redshift that astronomers started to consider a sign that the universe is expanding. Then Einstein gave up working on his universe and it has been forgotten for some time. Einstein told his secretary not to let in anyone who wants to talk to Einstein about the universe<ref>Story told to the author by Roy J. Blauber who was at the time Einstein's assistant in Princeton University in N.J. and later, for one year, author's physics teacher at Harvard, Cambridge, MA.</ref>.
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Still Einsteinian gravitation allows neither "attractive" nor "repulsive" "gravitational forces" since gravitational forces are inertial only. Also there is no ''potential gravitational energy'' beyond energy contained in the mass <math>m</math> of any particle, which is now a counterpart of the old Newtonian ''potential energy'' as there is no other ''potential energy'' in the universe. Especially no negative energy exploding in the Big Bang event, at the beginning of the universe, since Einstein's universe being eternal doesn't have any beginning.
      
===Einsteinian gravitation===
 
===Einsteinian gravitation===
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The Einstein's universe metric seems to be the simplest metric with required by Einstein's property of non symmetry of metric <ref>Einstein's 1950 paper ''"On the Generalized Theory of Gravitation"'', published in April 1950 issue of ''"Scientific American"''. This paper was not placed for some reason in detailed bibliography of Einstein's papers of 1973 ''"Gravitation"'', by Misner, Thorne, and Wheeler. The reason might be that this book assumes at the onset the symmetric metric of spacetime while Einstein excluded such possibility possibly for it potential of creation of energy from nothing utilized indeed later in ''"Gravitation"'' in the form of Big Bang hypothesis. For this reason ''"Gravitation"'' might be considered advocating a creationist cosmology, as contrasted by stationary cosmology of '''Einsteinian gravitation'''.</ref>.
 
The Einstein's universe metric seems to be the simplest metric with required by Einstein's property of non symmetry of metric <ref>Einstein's 1950 paper ''"On the Generalized Theory of Gravitation"'', published in April 1950 issue of ''"Scientific American"''. This paper was not placed for some reason in detailed bibliography of Einstein's papers of 1973 ''"Gravitation"'', by Misner, Thorne, and Wheeler. The reason might be that this book assumes at the onset the symmetric metric of spacetime while Einstein excluded such possibility possibly for it potential of creation of energy from nothing utilized indeed later in ''"Gravitation"'' in the form of Big Bang hypothesis. For this reason ''"Gravitation"'' might be considered advocating a creationist cosmology, as contrasted by stationary cosmology of '''Einsteinian gravitation'''.</ref>.
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==History of Einsteinian gravitation==
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==Critique of the Big Bang hypothesis==
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Still Einsteinian gravitation allows neither "attractive" nor "repulsive" "gravitational forces" since gravitational forces are inertial only. Also there is no ''potential gravitational energy'' beyond energy contained in the mass <math>m</math> of any particle, which is now a counterpart of the old Newtonian ''potential energy'' as there is no other ''potential energy'' in the universe. Especially no negative energy exploding in the Big Bang event, at the beginning of the universe, since Einstein's universe being eternal doesn't have any beginning.
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==Strange history of Einsteinian gravitation==
    
===Atempt to get the rate of expansion of space===
 
===Atempt to get the rate of expansion of space===
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