Growing up, my mother taught me
a nursery rhyme that helped me remember the order of the planets. "Many very
early men jump straight up near Pluto." Granted, it was mostly a nonsense
mnemonic memory trick, but it did get me through some challenging grade
two science quizzes. Once the order of the Solar System was committed to
memory, the mnemonic memory technique was discarded but not forgotten. Undoubtedly
new mnemonic techniques are taught now, considering Pluto's well-known demotion
to dwarf planet in 2006, as well as the subsequent social and political
"movements" to reinstate Pluto as a planet regardless of scientific legitimacy.
Fortunately, these opinions have largely quieted, because as we grow our
astronomical understanding, more strict definitions are needed.
Yet another understanding may
be about to change, as a recent report suggests that the singularity-the moment
when everything existed in a united, infinitely dense mass-never
actually happened. Instead, the universe has always existed in some form. This
would dramatically alter the way science is taught in schools, as well as many
cosmological models.
Current science estimates the
universe at close to 14 billion years old, and at the beginning everything was
created by the Big Bang. The 'no singularity theory' does not eliminate the Big
Bang, instead it says that all matter once existed in a type of mass with
infinite energy potential. The Big Bang dispersed these cosmic materials. Many
recent articles state that the theory posits the Big Bang never happened-that is not the case. (In this
instance, unfortunately.)
Apparently there are problems
with general relativity mathematics, as they can only infer what happened after
the Big Bang, not before or during. Researchers at the University of
Lethbridge, Alberta, believe they have
solved many of the inherited problems that arise by applying quantum
corrections originally proposed by theoretical physicist David Bohm in the
1950s. His model describes both the expansion and evolution of the universe,
and contains elements from both quantum theory and general relativity.
The new model also predicts
that there won't be a reciprocal 'big crunch' either. With previous models,
there was speculation the universe could one day reach an expansion maximum,
only to collapse on itself to create a new singularity. New calculations also fulfill
the theory the universe is filled with gravitons, suggested particles that
facilitate gravitational forces, much the way electrons facilitate
electromagnetism.
Recall that around this time
last year, a group of researchers announced that they
had found particle evidence of cosmic inflation from early in the
universe's existence. This discovery would account for the universe's
non-linear expansion and age ratio. Without this evidence for inflation, it
means we seriously miscalculated the age of the universe. Now this evidence has
been shown to be the result of
misreadings. So the search for inflation evidence continues, or else the age
of the universe is in question.
So all we know for sure is that we don't know the age of the
universe, for sure. The Big Bang is alive and well, but the truth could be the
universe had no beginning (and will therefore not end). The singularity theory
has been around for a long time, but it's standing on shakier ground than ever.
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