The Bing Bang Theory

Joseph Guddemi

Just imagine the following: colliding galaxies that rip apart stars from each other; a dead star so dense that one thimble full of matter would weigh more then 100 million tons on Earth. Also a volcano on Mars 3 times the size of Mount Everest. All of these things are part of the wondrous universe.
But what exactly is the universe? By the term Universe scientists mean everything physical that exists in space and time. It consists of all space, matter and energy that exists now, in the past, and in the future. There is only one observable universe. You are a part of the universe, as is Earth and everything on it. With the naked eye you can see our moon, 5 planets, 6000 ...

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with some planets and stars here and there. It is filled with empty space.
In 1929 Edward Hubble announced that the universe is expanding. He said that the spectral lines in light from other galaxies always shifted toward the red end of the spectrum. This can be best defined as the red shift. It can be explained through the Doppler effect. When an object moves away from us, the waves emitted from such object stretch out. The faster the object moves away the more the object stretches to longer wave lengths and shifts toward the red end of the spectrum. When the object is approaching us the shift is shifting shorter towards the blue end thus causing a blue shift.
The universe is widely believed to have started with a big bang. The big bang theory states that the universe started with an explosion 15 billion years ago. However scientists believe there was no explosion; there was a continual expansion. Rather than imagining something like a balloon popping and releasing its ...

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"The Bing Bang Theory." Essayworld.com. March 15, 2011. Accessed June 24, 2018. http://www.essayworld.com/essays/The-Bing-Bang-Theory/96116.
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PAPER DETAILS
Added: 3/15/2011 07:33:46 PM
Submitted By: JGuddemi
Category: Astronomy
Type: Premium Paper
Words: 476
Pages: 2

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