THE THREE THEORIES
The Ultimate fate of the universe
or how the universe will come to an End.
So As, today’s Scientist knows all about the
universe, they know about this too, Scientist from all over the world is
researching on how the universe will come to an end and they have proposed
Three Theories for it.
- · THE BIG RIP
- · THE BIG CRUNCH THEORY
- · HEAT DEATH/THE BIG FREEZE
Basically,
to understand any of three theories, one must know a fact that the Universe is
Expanding at a rate but not only at a constant rate, the rate of expansion is
accelerating and the main reason which is known till now is Dark Energy
(basically Dark Energy is a strange phenomenon that scientist believe permeates
the Universe). Albert Einstein thought of It first but then He decided that It
was stupid, but now Astrophysicist have decided it is plausible but the
main problem here is it all so theoretical and we don’t really know the
theories of Dark Energy and as today’s technology the best current measurements
indicates that the dark energy contributes 68.3% of the total energy in the
present day.
Now, Let try to understand all three theories
precisely.
The Big Rip Theory
It goes with the name Rip, the learning
definition is: It is a hypothetical cosmological model, which concerns the
Ultimate fate of the universe, from Stars and Galaxies to Atoms and to
Sub-Atomic particles will be torn apart or ripped apart by the expansion of the
Universe.
So, to
understand it simply: we all know now that the universe is expanding from its
birth and spaces are created everywhere equally for many unknown reasons so the
space between the galaxies also expands and they move apart and the space
inside the galaxies also expands, but here gravity keeps them together but in
The Big Rip scenario the acceleration of the expansion will be increased at
that rate that Gravity Can’t handle the effect and it gives the result as Big
Rip.
So, after
this happens at first large structures like-Galaxies will be torn apart, next
big bodies like Black Holes, Stars, planets will die but their gravity are
strong enough to keep them together, so they dissolve in their components and
in the end space will expand faster than the SPEED OF LIGHT WHICH IS
300,000,000 M/S and ones space is expanding faster than the light no an
particle can interact with anyone.
THIS IS
HOW UNIVERSE WILL GET DESTROYED ACCORDING TO THE BIG RIP THEORY.
The Big Crunch Theory
It also goes with
the name crunch, The Learning definition: It is one possible scenario for the Ultimate
fate of the universe, in which the METRIC EXPANSION OF SPACE eventually
reverses and the universe re collapses ultimately causing a Reformation of the
universe.
The Big
crunch is the most uplifting scenario and it is relatively related to dark
energy. Like what we assume the power of dark energy if it less than that or it
is decreases with time, Gravity becomes the most dominating force in the
universe one day, in a few trillion years the rate of expansion of universe will
stop and start reversing the universe expansion, Galaxies will race each other
merging as the universe becomes smaller and smaller, since the smaller universe
means hotter universe temperature rise everywhere but 1,00,000 years before the
big crunch background radiations will be hotter than the surfaces of most
stars, minutes before the big crunch happens atoms core are ripped apart before
super massive black hole to everything and finally all the black holes
will merge into the super massive black holes that contains the entire massive
universe and last minute before the big crunch it will devour the universe
including itself and universe will come to an end according to THE BIG CRUNCH
THEORY.
Heat death/The Big Freeze
Also
goes with the name, The learning definition: It is one of the plausible
ultimate fate of the universe in which the will be in a state where it has no
THERMODYNAMIC FREE ENERGY (thermodynamic energy is the amount of work which can
be done in thermodynamic system) So, it cannot sustain processes that increases
Entropy.
So, One
thing you might have noticed in the learning definition that heat death have
many scientific terms which only guys who has studied science can understand
but as usual I'll try my best to make you understand in normal language what is
this thing- So first things first the last word in learning definition is
Entropy so let's talk about that, Entropy is simple to understand Every
system tends towards highest entropy like assume you have a hot coffee
with milk foam up of it, for instance initially it has different regions but
overtime it will cool down and the milk foam will come to a point where it is
uniform to the coffee in the mug and The same goes for the universe, like while
the universe is getting bigger and bigger matters slowly decays and spreads out
and At some point, after lots of generations of stars all the gas clouds
necessary to form stars will be exhausted so the universe will turn dark and
the remaining suns will die and Black holes will slowly degenerate and
evaporate over trillions of years which is known by HAWKING RADIATION. When
this process is complete only a dilute gas and photons and light particles
remains until even this decay, all activity in the universe ceases at this
point, Entropy is at it's maximum and the universe is Dead forever.
Asked By sahil Argawal
If you still have any doubt just comment it down below.
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