Creation of the Universe - download pdf or read online

By George Gamow

This energetic and authoritative survey through an the world over recognized physicist deals pleasing views at the origins of the galaxies, stars, chemical parts, and planetary platforms. Illustrated with diagrams and the author's personal drawings, it explains advanced options in an easy demeanour

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W. Cronin and Val Fitch, discovered that even the CP symmetry was not obeyed in the decay of certain particles called K-mesons. Cronin and Fitch eventually received the Nobel Prize for their work in 1980. html (7 of 8) [2/20/2001 3:14:54 AM] A Brief History of Time - Stephen Hawking... Chapter 5 There is a mathematical theorem that says that any theory that obeys quantum mechanics and relativity must always obey the combined symmetry CPT. In other words, the universe would have to behave the same if one replaced particles by antiparticles, took the mirror image, and also reversed the direction of time.

Even though it is very difficult to observe spontaneous proton decay, it may be that our very existence is a consequence of the reverse process, the production of protons, or more simply, of quarks, from an initial situation in which there were no more quarks than antiquarks, which is the most natural way to imagine the universe starting out. Matter on the earth is made up mainly of protons and neutrons, which in turn are made up of quarks. There are no antiprotons or antineutrons, made up from antiquarks, except for a few that physicists produce in large particle accelerators.

The discovery of the positron in 1932 confirmed Dirac’s theory and led to his being awarded the Nobel Prize for physics in 1933. We now know that every particle has an antiparticle, with which it can annihilate. ) There could be whole antiworlds and antipeople made out of antiparticles. However, if you meet your antiself, don’t shake hands! You would both vanish in a great flash of light. html (3 of 8) [2/20/2001 3:14:54 AM] A Brief History of Time - Stephen Hawking... Chapter 5 important, and I shall return to it later in the chapter.

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Creation of the Universe by George Gamow

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