Bigbangtheoryessay On About The Beginning And End Year 11 Essay

998 words - 4 pages

Evidence For The Big Bang Theory
Introduction
The Big Bang Theory is the worlds most widely accepted 99% proven explanation for the how the universe evolved into its current state. When I say 99% proven I mean it, we can never say the theory is 100% proven because that is wrong mathematically. However the evidence we have to prove the theory is overwhelming.
The theory goes like this: About 15 billion years ago, all matter and energy was bottled up in an incredibly small region known as a singularity. In an instant, this single point of super-dense material began to expand at an astonishingly rapid rate. Astronomers and scientists use the term "big bang" to describe both the singularity and the first few moments that followed.
As the newborn universe expanded, it began to cool down and become less dense. Within roughly 300,000 years, everything held within the singularity had expanded into an opaque sphere of matter and radiation. As it did, the temperature dropped to 5,432 degrees Fahrenheit (3,000 degrees Celsius), allowing more stable particles to form. First came electrons and protons, which then combined to form hydrogen and helium atoms and no there was no explosion in the big bang theory, it never happened.
Georges Henri Joseph Édouard Lemaître (17 July 1894 – 20 June 1966) was a Belgian priest, astronomer and professor of physics at the Catholic University of Leuven. A lot of people don’t actually know that a catholic priest gave the idea of the expansion of the universe.
Later he showed his idea to Edwin Hubble. Edwin Powell Hubble (November 20, 1889 – September 28, 1953). Edwin then made Hubble’s law explaining the big bang theory and the expansion of the universe.
Evidence for the Big Bang theory
We all know that there is so much evidence for the big bang theory but let’s start with the main three points that proves the big bang theory answers a lot of questions.
Expansion
Hubble’s discovery made this an extremely important fact or the theory. With tests and research we have found out that distant objects are moving away from us, with more distant objects moving away at higher velocities.  
This expansion is perhaps the most obvious prediction of the Big Bang -- if the universe is expanding, this will cause all objects to be moving away from each other. Think of this, a balloon, it had hands on the outside and when you blow up the balloon the hands start to move away from each other because the balloon is expanding, it’s just like that.
The Cosmic Microwave Background
As we look deeper into the expansion of the universe, the universe gets smaller. As the same energy is put into a smaller box which is shrinking the temperature is increasing with it. Gas cools as it expands and heats when it shrinks this means that the universe must have been extremely hot a long time ago.
The temperature was so hot in fact that hydrogen could not be formed. An opaque plasma was made due to...

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