Cosmologists still debate on how our universe ‘happened’ and
there are many theories put forward by many scientists. One of them is the ‘Big
Bang Theory’, which was proposed in the 1920s by Goerges Lemaître, a
Belgian priest, astronomer and professor. Although the Big Bang theory was
proposed in the 1920s, it didn’t really become an active
notion in cosmology until the mid-1960s when two young scientists
made an extraordinary discovery.
Arno Penzias and Robert Wilson wanted to use a
telecommunications antenna, owned by Hills Laboratories, to have some
scientific experiments take place. There was one problem though, a steady hiss
that came from everywhere in the sky. They tried everything to eliminate that
noise, from dusting plugs to replacing electronic equipment but whatever they
did, the noise wouldn’t go away. What they didn’t know is that what they were
trying so hard to get rid of, a team of scientists led by Robet Dicke at
Princeton University just 50 kilometers away were trying to get ahold of that
noise.
George Gamow, a Russian-born astrophysist wrote a book in
the 1940s, The Inflationary Universe, in which he put forward
the idea that there is still some left over radiation, which was produced by
the Big Bang, and that by the time it crosses the universe and reaches us it
will be in the form of microwaves. The noise that Arno Penzias and Robert
Wilson were hearing were those micro-waves being caught by the antenna.
The Inflation Theory, introduced by Alan Guth in 1979, said
that the universe is expanding, but not filling up an empty space, it is
growing and creating space as it grows. Alan said that there is no past for the
universe to come from. In fact, to the universe there is no such thing
as time. Whether it has been here forever or has just recently popped up like a
good idea, we will never know.
There is another theory put forward by Martin Rees that
there are many universes and that there were many Big Bangs, perhaps trillions
of them. He said that the universe we live in is just a thing that happens
sometimes and that this exact one just happened to have all of the necessities
that we require for life. Edward P. Tryon added to Martin’s theory that ‘no one
had counted the failed attempts’.
What is the Big Bang theory?
ReplyDeleteIt is the theory of the Big Bang. It is only a theory but it is essentially that everything was created by a huge explosion that created all the antimatter and matter in an instant. It was said to happen very quickly and made everything in the universe.
Delete