End of the Universe
There are many speculations about the end of the universe, and has been of debate by scientists all over the world. Some of them are just stupid crummy and un1337 ones that unknowledgable people made up like this: Aliens are going to take over the universe, and eventually cause war and antimatter bombs will turn the universe into pure energy, which will dissipate into nothing. Those are useless and no one wants to hear them, because this is a physics blog.
One theory is that the universe is stationary. This is what Einstein believed in. When he made his general theory of relativity, he was dissatisfied with the fact that his theory did not support a stationary universe, so he added a cosmological constant. He later called it the "biggest blunder" of his life.
The two most supported speculations of the end of the universe are opposite of each other. One states that the universe will eventually started to fall back to the power of gravity and collapse back to a singularity as it was before the Big Bang in what is called the "Big Crunch". The other states that the universe will continue to expand until the universe will cool down to absolute zero and become desolate, which some people call "Heat Death". The people supporting Heat Death theory say that according to calculations, there is not enough matter in the universe to cause the collapse. The people supporting the Big Crunch theory say that there exists some form of "dark matter" that is usually invisible to or unrecognized by telescopes, and that there is enough of this stuff that it will eventually cause the universe to collapse.
What do you think?
One theory is that the universe is stationary. This is what Einstein believed in. When he made his general theory of relativity, he was dissatisfied with the fact that his theory did not support a stationary universe, so he added a cosmological constant. He later called it the "biggest blunder" of his life.
The two most supported speculations of the end of the universe are opposite of each other. One states that the universe will eventually started to fall back to the power of gravity and collapse back to a singularity as it was before the Big Bang in what is called the "Big Crunch". The other states that the universe will continue to expand until the universe will cool down to absolute zero and become desolate, which some people call "Heat Death". The people supporting Heat Death theory say that according to calculations, there is not enough matter in the universe to cause the collapse. The people supporting the Big Crunch theory say that there exists some form of "dark matter" that is usually invisible to or unrecognized by telescopes, and that there is enough of this stuff that it will eventually cause the universe to collapse.
What do you think?
posted by deranged_physicist | 6:15 PM
1 Comments:
Cool. I've hear dthat there is a constant called Ω, which is the other way of writinfg the density of material in our universe. If Ω=1, our universe is flat and expand forever, but there is too little mass and energy that exists for that to happen. So the scientists cam up with the idea of dark matter and dark energy, which aren't baryonic, and is suspected to be made of leptons or other subatomic wonders we haven't found out about.
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