PRIDE CHEKERA_HOW BEAUTY IS PHYSICS_SHORT ESSAY (2021 EBOOK)

(Pride Chekera) #1
PRIDE CHEKERA

life, no planets, no stars, back to the dark ages of the cosmos as
those found during the primordial epochs. Later black holes will
evaporate, and the marks the end of the life-time of a universe
which had been there at one moment. Physicists are dubious
whether this extremely dense region will inflate again into
another cosmos, a scenario illustrated in cyclical cosmology, the
big bounce. A big crunch is the heat death of the universe, with
extremely high temperature.


Big freeze and Big Rip


According to current physics and observations, the universe is
accelerating in its expansion which means things are working in
favor of dark energy in its tug war with gravity. I already noted
it out that cosmological redshift determined from studying
standard candles (Type 1a supernova) showed us that galaxies
are moving away from us. Dark energy is pulling them apart. If
things remain like that, all galaxies (except Andromeda) will go
beyond the cosmic horizon such that only stars of Milky Way
we be there for physicists to talk about. As that expansion
proceeds, the temperature of the universe will drop. Thus dark
energy will render the cooling of the universe, if the expansion
continues forever with a steady rate, ending the universe is a big
freeze, conditions not suitable for life to exists. If dark energy
strength increases very much, it will not only cause this
expansion, but it will accelerate it to such an extent that it will

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