Posted by Alcyonian [203.97.2.242 - netcache1-acld.auckland.clix.net.nz] on 19 June 2003 at 02.29.48 ZuluTime:

In Reply to: I wanna BIG BANG your ass posted by jon bush on 18 June 2003 at 22.11.35 ZuluTime:

I'm going to explain briefly the basis from GR, of the Big Bang, without the other additives to it. Seems some people need it. All Doppler's Shift is applied for, and I will quote Feynmann as he says it so eloquently: "The Doppler shift is an effect that changes the color of light that we observe from a star. The motion of the star is what causes the color of the light to change. This change of color due to motion is called the Doppler shift. The Doppler shift of star light is helpful for this lab because the two stars in a binary system are moving as they orbit each other. This orbital motion results in a Doppler shift that we can measure."

     The Big Bang, simplistically, describes how our current universe came into being from an atomic nucleus. (Note: There was NO "before" the Big Bang, because time did not exist. Time and space have always been intimately linked - as our dimensions - in what Albert Einstein called a space-time continuum. Once time came into being, space could start to expand. Equally, once space had been created, time could begin to flow - refer to 2nd law of thermodynamics). The universe is expanding, so stand's to reason that, in the past, everything must have been closer together. If the motion of the galaxies we see today is reversed, it lead's back to an instant around 13 billion years ago when all occupied a single point, or atomic nucleus.

The energy from the Big Bang created virtual particle pairs - one of matter and one of antimatter. They annihilated each other almost immediately. We can study this in particel accelerators. Early on, the four forces (electromagnetism, which rules electricity and magnetism - the weak force, which governs how the stars shine - the strong force, which glues together the nuclei in atoms - and gravity which keeps the planets and stars in orbit) were united into a single superforce, but as the universe expanded and cooled, they split off, one by one. When the strong force split away, it released vast amounts of energy that fuelled inflation. The reason why these particles did not annihilate each other, may be due to X boson and it's twin, the anti-X (reason I'm explaining this portion is that theists use this to dispute big bang). Heaviest particles of all, an dcould be created only by the high energy of inflation. As the universe cooled, both particles became unstable and decayed into lighter quarks and leptons. But for every 100,000,000 quarks and leptons created, only 99,999,999 antiparticles emerged. This tiny imbalance resulted in all the matter in the universe today. As the Universe cooled, gluons pulled quarks together in threes to form equal numbers of protons and neutrons. At the first second, some neutrons started to decay into protons, and by the time the temperature had dropped to 900 million degrees celsius, there were seven protons to every neutron. The remaining neutrons rapidlybonded with protons to form the nuclei of atoms. By the end of the first three minutes, there were no free neutrons left.

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