the big bang theory. before the big bang there was nothing: space, time, matter, & energy didnt...
TRANSCRIPT
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The Big Bang Theory
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Before the Big Bang
•There was nothing: space, time, matter, & energy didn’t exist
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Then everything changed, and we don’t really know why.
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It is the expansion of a singularity that formed the universe.
It created everything: Time, Space, and the Matter (atoms) that make up everything
The Big Bang is the birth of the universe 13.7 billion years ago.
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So what happened?
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Everything was compressed into a tiny spec.
It suddenly expanded very rapidly and was very hot.
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As it expanded it cooled and matter began to form by sticking together.
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Eventually the matter clumped together into nebula clouds
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Then gravity helped pull the matter in to make stars and galaxies.
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Some of these stars died out & ‘blew up.’ From the debris new stars and planets formed like our solar system.
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The universe continues to expand, stretching space and time b/t the galaxies.
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A brief writing break to watch this video review
Expansion of the Universe film
http://www.youtube.com/watch?v=th_9ZR2I0_w
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• Edwin Hubble used a very powerful telescope to see:1. The Milky Way is NOT the only
galaxy2. Galaxies are moving away from
each other (if they are moving away now then at some point they must have been closer-George Lemaitre)
What proof do we have for the Big Bang?
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http://www.youtube.com/watch?v=kV33t8U6w28Video-What is the Universe expanding into?
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3. Leftover radiation fills all of space (space is now cold, 3K)
4. The amount of Hydrogen & Helium found in the universe matches predictions.
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The Universe is like Raisin Bread
Interview with Noble prize winner Dr. Adam Reiss
http://www.telegraph.co.uk/science/8807068/Universe-like-raisin-bread-says-Nobel-prize-winner.html
Video of rising raisin breadhttp://
www.youtube.com/watch?v=0z8hrRXQuHY
http://www.youtube.com/watch?v=L8DgU07fjYk