The Big Bang


It is always a mystery about how the universe began, whether if and when it
will end. Astronomers construct hypotheses called cosmological models that try
to find the answer. There are two types of models: Big Bang and Steady State.
However, through many observational evidences, theory can best
explain the creation of the universe.
The Big Bang model postulates that about 15 to 20 billion years ago, the
universe violently exploded into being, in an event called the Big Bang. Before
the Big Bang, all of the matter and radiation of our present universe were
packed together in the primeval fireball an extremely hot dense state from
which the universe rapidly expanded. The Big Bang was ...

Want to read the rest of this paper?
Join Essayworld today to view this entire essay
and over 50,000 other term papers

This model assumes the perfect cosmological principle. This principle
says that the universe is the same everywhere on the large scale, at all times.
It maintains the same average density of matter forever.
There are observational evidences found that can prove the Big Bang model is
more reasonable than the Steady State model. First, the redshifts of distant
galaxies. Redshift is a Doppler effect which states that if a galaxy is moving
away, the spectral line of that galaxy observed will have a shift to the red end.
The faster the galaxy moves, the more shift it has. If the galaxy is moving
closer, the spectral line will show a blue shift. If the galaxy is not moving,
there is no shift at all. However, as astronomers observed, the more distance a
galaxy is located from Earth, the more redshift it shows on the spectrum. This
means the further a galaxy is, the faster it moves. Therefore, the universe is
expanding, and the Big Bang model seems more reasonable than the ...

Get instant access to over 50,000 essays.
Write better papers. Get better grades.


Already a member? Login


CITE THIS PAGE:

The Big Bang. (2006, June 5). Retrieved September 24, 2018, from http://www.essayworld.com/essays/The-Big-Bang/47073
"The Big Bang." Essayworld.com. Essayworld.com, 5 Jun. 2006. Web. 24 Sep. 2018. <http://www.essayworld.com/essays/The-Big-Bang/47073>
"The Big Bang." Essayworld.com. June 5, 2006. Accessed September 24, 2018. http://www.essayworld.com/essays/The-Big-Bang/47073.
"The Big Bang." Essayworld.com. June 5, 2006. Accessed September 24, 2018. http://www.essayworld.com/essays/The-Big-Bang/47073.
JOIN NOW
Join today and get instant access to this and 50,000+ other essays


PAPER DETAILS
Added: 6/5/2006 05:57:51 PM
Category: Science & Nature
Type: Premium Paper
Words: 1136
Pages: 5

Save | Report

SHARE THIS PAPER

SAVED ESSAYS
Save and find your favorite essays easier

SIMILAR ESSAYS
The Big Bang Theory Vs Biblical...
The Big Bang And Steady State M...
The Big Bang Model
The Big Bang
The Big Bang And The Steady Sta...
Origins And Bibliography Of The...
The Big Bang
The Big Bang Theory
Big Bang
Big Bang Theory
Copyright | Cancel | Contact Us

Copyright © 2018 Essayworld. All rights reserved