The Effects Of Space-Time Variations
Hi, past few
weeks was reading by different theories on the existence of the universe, what’s
about any beginning or any singularity as usual. Anyway, while going through it
found something controversial amongst many theories which somewhere seems to have
some originality but not wholly as far as the actual reality is concerned. Let’s
talk about some of them to make it more clear-
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In 1924, an American
astronomer Edwin Hubble demonstrated that ours not the only galaxy, and though
the belief that our earth is the centre of the universe proves wrong; even ours
the one of the several galaxies seen as pin-point by a distance from the universe.
Then comes an
urge for making our best experiments knowing about those other galaxies means
by the distance, the nature of the occurrence of different ecological cycles,
their staticity and their point of existence too. When they found something
beyond their expectations, it reverts all back theories and comes up with a belief
of “The Expanding Universe” when they found it not static but to be expanding with
time all about then based on the general relativity and two assumptions [that
the universe looks identical in all directions we look and by every point in
the universe] Friedmann had already been predicted earlier what exactly the Hubble
has discovered then.
But this too
not exactly what’s the truly the universe seems about, as everything has drawbacks
somewhere all around.
By the Time
it has also been said that if the universe is expanding then it might be sometime
in the past been at a ‘Zero’ point [Big Bang] that means it must have a starting
point of everything and also that of the Time.
Here another the thing, suppose a person on the Earth starts travelling from some
point and keeps on moving, he might not bump into an edge but would come up to
the same place where he had started by; so by this means that if the universe
is expanding and didn’t it have any edge to stop by would it on one point reversed
to ‘Zero’ or will it be expanding
forever?
That’s to Friedmann the misery that again made him reconcile further on his prediction.
Now move
towards some other predictions too –
In 1963, two
Russian scientists; Evgenii Lifshitz and Isaac Khalatnikov suggested that the Big
Bang might be a peculiarity of the Friedmann’s model alone and denies the
starting of the universe with a Big Bang model of Friedmann which is just an assumption
beyond the singularity of the real universe and concluded that there were many
other models suggesting the origin of the universe and have many singularities
in other models also and not just one exception like the Friedmann’s one.
Later, they
found that the Friedmann’s model not the only one but there’s some other’s too
having the singularities as the former’s claim. Henceforth, they withdrew their
claim in 1970.
In 1965, there’s
a completely different approach started by a British physicist; Roger Penrose,
a belief that a star that collapses under its own gravity getting trapped whose
boundary eventually shrinks to ‘Zero’ size and so the density of matter and the curvature of the space-time becomes
infinite. In other words, it has a singularity within the region of space-time
known as ‘Black Hole’.
So, Penrose
theorem shows that any collapsing star must end in a singularity and then to
make it with the singularity of Big Bang of Friedmann’s model, Stephen Hawking come
up jointly with Penrose in 1970 to a theorem which suggested that there must be
a Big Bang singularity proving only if the general relativity is correct and
the universe contains as much matter [dark matter] as we observe.
As a result,
after the Hawking and Penrose theory derives the singularity of unknown
existing matters they have to face up with many oppositions followed by Evgenii
Lifshitz and Isaac Khalatnikov, and many others who believe that they have
spoilt the beauty of Einstein’s theory.
Afterwards
this theory of Stephen Hawking that the universe has a singularity and contains
much matter than is observed generally accepted and all’s this we have made
till now at least till any other relevant theory comes around someday or
whatever may not.
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See,
whatever be the belief may it be the reality doesn’t deal or replicate anything
it is something that’s all for now and for then we can only be known what we
liable to or allowed to not beyond that not before that so whatever seems to be
just to believe in what one wants to, there’s nothing to deal with other’s
conflicting opinion other than one that relates.
"The universe shall diverge
or the Time may emerge,
To think of covert will throb;
lest the mindedness to Jacob"
*****
