Changes

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.

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.

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 Blauber who was at the time Einstein's assistant in Princeton University in N.J. and later author's physics teacher.</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>.

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.

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.