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The Big Bang Theory
Transcript of The Big Bang Theory
infinite and static
Physicists used to believed that the universe was has always been and always will be. This is seems reasonable, according to their observations. But this theory is contradictory to the popular beliefs that the universe has a beginning.
Then came Georges Lemaître, a Catholic priest, an excellent mathematician and scientist, he propose the idea that the universe does has a beginning.
Lemaitre based his theory not just on his religious beliefs, but also on Edward Hubble's discovery that the universe is expanding.
Edward Hubble(left) and Georges Lemaite(right)
Georges Lemaitre believe that because the universe is expanding, the more back in time you go the smaller the universe is. So at one point in time, the universe was one point in space. He called that point the....
but now it's better known as...
which is a horrible name...
because it wan't big
nor was it an explosion
Hey Georges, the universe is stretching
This is evidence of God! OMG
Beginning of Time
It's the universe, compress into a bubble a fraction of an atom small. It's infinitely dense and infinitely hot.
So anyway, according to the "Big Bang Theory."
that all the force of physics...
strong nuclear force
weak nuclear force
...conjoined into one major force,
until the gravity breaks apart and
This is the "singularity."
Space goes through a superfast "inflation." In a tiny fraction of a second, the cosmos expand from the size of an atom...
...to the size of a basketball.
As the universe expand, it releases a burst of energy fueling the inflation
The expansion slows down, and the cosmos cools. The energy turns into matter, according to Einstein's E=mc².
speed of light
power of two
Electron, protons, and neutrons joined to form atoms, mostly helium and hydrogen atoms.
can now shine through space.
1 billion years
Gravity makes hydrogen and helium to form into giant clouds, which will become galaxies. Smaller clumps will eventually collapse to form the first stars.
15 billion years
Galaxies cluster together, the first star dies and spew heavy element into space, which will creates new stars and planets. This is the the universe we live in today.
We are lucky to live in this time, because as the cosmos age and space expand, the starry night we see today will eventually get....
Now The Big Crunch Theory suggests that if the universe stop expanding, the force of gravity will....
...pull everything back together and space will end up as a singularity, and the cycle begins again.
Strickland, Jonathan. HowStuffWorks. HowStuffWorks, Inc, n.d. Web. 22 Jan 2014. <http://science.howstuffworks.com/dictionary/astronomy-terms/big-bang-theory.htm>.
Harris, William. "How the Big Crunch Theory Works." HowStuffWorks. HowStuffWorks, Inc, n.d. Web. 22 Jan 2014. <http://science.howstuffworks.com/dictionary/astronomy-terms/big-crunch7.htm>.
Reich, Henry, dir. Science, Religion, and the Big Bang. YouTube, 2013. Web. 22 Jan 2014.