Difference between revisions of "Big Bang theory"
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(protons not elementary and were formed by cooling not heating, no elements were formed by gravity, first stars did not form any heavy elements) |
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| − | The Big Bang is a theory that the universe | + | The Big Bang is a theory that the universe originated hot dense mass in a very small point that then expanded outwards, approximately 14 billion years ago. . It is the most popular theory about the origin of the universe. It was first proposed by [[Georges-Henri Lemaitre]]. More evidence for the Big Bang was found by [[Edwin Hubble]] and [[Bell Labs]]. Later [[George Gamow]] predicted that the Big Bang would leave an observable microwave background radiation. This radiation was subsequently discovered and found to be close to that predicted by Gamow(Gamow predicted a background radiation level equivalent to a 3 K black body object, and the observed level is that of a 2.725 K body). |
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Revision as of 07:44, February 27, 2007
The Big Bang is a theory that the universe originated hot dense mass in a very small point that then expanded outwards, approximately 14 billion years ago. . It is the most popular theory about the origin of the universe. It was first proposed by Georges-Henri Lemaitre. More evidence for the Big Bang was found by Edwin Hubble and Bell Labs. Later George Gamow predicted that the Big Bang would leave an observable microwave background radiation. This radiation was subsequently discovered and found to be close to that predicted by Gamow(Gamow predicted a background radiation level equivalent to a 3 K black body object, and the observed level is that of a 2.725 K body).