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Big Bang

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by

Madeleine Student

on 20 March 2014

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Transcript of Big Bang

Monday
3-17-2014
Gravitational waves detected
ripples in space-time
Evidence of Big Bang
BICEP2
Analyze the polarization of light left over from early universe
Inflation
word used to descibed how the world expanded after Big Bang
before inflation everything in the universe was smaller than an electron
Gravitational Waves
Tiny ripples called quantum fluctuations
Existed at the beginning
inflation blew them up
Caused gravitational waves
Imprinted on the cosmic microwave background
Tells us about universe's history
BICEP2
Background Imaging of Cosmic Extragalactic Polarization 2
Looking for polarization called B modes
Curling pattern in the polarized orientations of light from the ancient universe
Curling pattern = gravitational waves
Big Bang
Scientific Breakthrough
<iframe width='416' height='234' src='http://www.cnn.com/video/api/embed.html#/video/world/2014/03/18/newday-vo-nasa-big-bang-theory-ripples.cnn' frameborder='0'></iframe>
Sources
http://www.cnn.com/2014/03/17/tech/innovation/big-bang-gravitational-waves/
Full transcript