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Paul Dirac and Pascual Jordan have,
decades ago, developed a theory which is based on the GTR, but regards
the “gravitation constant” as a value decreasing with time [19],
p. 228: „From this, a steady increase of the world mass would
result.
This theory has failed so far, for reasons of a plausible explanation
for
the creation of new matter.”
Let me remark to this, the
alternative-
a spontaneous creation of the total matter shortly after big bang is
neither
more plausible nor more elegant.
Aside of the big bang theory, there
were cosmological models which had to be taken seriously, e. g. the
Steady-
State- Theory, that also demanded a continuous creation of matter.
In section 4.4, Dirac’s
hypothesis
will be discussed further.
From (9) and (2) we finally
receive, for the average mass density:
r ~ t
- 4/3 ~ R-2
(11)
As we can see, from this results
the consistence of eq. (6), deduced by Einstein, in a very natural way
(r
~ R -2 , h 2
~ R-2 !).
Dependencies of important
cosmic values on the now time scale
The dependencies R (t), M (t), c (t) and G (t) are shown in Fig. 4 .
Fig. 5 on p. 16 shows the cosmological values for a universe age of 15
.
10 9 years.
Fig. 4: Dependency of cosmic values on the Newton time t (now time)
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