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Science in Seconds - Big Bang Theory

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Science in Seconds Know Everything RUMOURS - Big Bang Theory Brit Trogen: The Big Bang theory. Awesome show. Really weird concept. It's a theory that describes the birth of our universe, which existed about 14 billion years ago as an incredibly hot, dense mass that was only a few millimeters wide. Today it's obviously much bigger and cooler, and is still expanding as we speak. The weird part is just how detailed the picture we can glean by looking backwards in time to that finite point, or singularity. For example, we found out what was happening 10 to the -37 seconds after the Big Bang, and yet we still can't find Bin Laden. One second after the Big Bang, the universe was a subatomic soup of about 10 billion degrees Fahrenheit and the heat left over from that first tiny universe, called cosmic microwave background radiation, or CMB, left a lot of tell-tale radiation to support the fact that this actually happened. As the expansion continued and the universe cooled, elements and isotopes formed and time carried on as usual. Now if you ask a physicist what came before the Big Bang, you'll usually get some version of the incredibly unsatisfying answer, "What's north of the North Pole?" Which is physicist-speak for... So just to avoid getting all existential let's just say what came first is this guy. Of course, acknowledging the Big Bang means we have something called the Big Crunch to look forward to in a few billion years, where we'll collapse back into that millimeter-wide mass. But by that time, we'll probably be sick of this universe anyways. Courtesy of Science in Seconds – All rights reserved Only for educational/non-profit purposes. (Translators are invited to put their name here)

Video Details

Duration: 2 minutes and 6 seconds
Year: 2011
Country: United States
Language: English
License: All rights reserved
Producer: Science in Seconds
Director: Science in Seconds
Views: 83
Posted by: tradottiinitaliano on Sep 10, 2011

How was our universe created? With a bang.

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