Theory of the Universe

The cosmic-microwave background theory is establish on the concept that, as the universe expanded, the original ultrahigh-energy da Gamma rays became stretched into xrays, then into visible wispy, and fin tot solelyyy, after 15 billion years, come produced microwaves. This cosmic-microwave background (CMB) is now a faint glow 2.7 degrees supra absolute zero.

It was speculated that the CMB was like a 'blackbody' spectrum, like the light an object radiates because of its thermal energy (Seife 2237). It was also speculated that it would bear the label where lumps of matter oscillated before the universe self-possesseded and freed the light. These acoustic oscillations should show as hot spot, but nobody had a way of criterion them. In 1990, the Cosmic mount Explorer (COBE) satellite corroborate that the cosmic background spectrum was blackbody radiation, but it could non ascertain features smaller than a few degrees. Finally, in 2000, the BOOMERANG expand experiment saw the one degree hot spots showing up as a peak on a graph, and from the size of the spots, scientists concluded that the universe was flat in a quartette-dimensional disposition rather than curved. The Cosmic Background Imager, MAXIMA, and the Degree Angular Scale Interferometer found evidence of 2 more peaks, confirming the acoustic-oscillation model of the early univ

Science. 292(5515) (2001): 189-190.

Neutrinos atomic number 18 affected only by the languid tycoon (Seife 184). They feel the weak force just as quarks do but because they were thought to have no mass, they were not considered important. In the late 1990s, the Super-KamioKande observatory in Kamioka, Japan, found hints that muon neutrinos could change into tau neutrinos, suggesting their flavor basis differs form their mass basis, and and so they must have mass. Physicists have assumed that any experiments do with matter will give the same corresponding results when through with(p) with anti-matter. This is known as charge-parity (CP) or symmetry. However, the weak fore does not obey this law, and it is possible neutrinos do not either.

They may arise out to have their own anti-particles: physicists are looking for signs that neutrinos are indeed Majorana (have their own anti-particles). This is all part of the on-going exploration of how the universe is put together, and what holds it together.

exist. There are estimates from fleshly theories of when certain events will happen, such as the estimated meter until low-mass stars cool off (1014 years); the time until planets detach from stars (1015 years); the time until stars detach from galaxies (1019 years); the time until orbits decay by gravitational radiation (1020 years); the time until all matter is liquid at zero temperature (1065 years); and the time until all matter decays to iron (101500 years).

The weak force is one of the four major forces in the universe, and is not as strong as the strong force which binds protons and neutrons, has a shorter range than the electromagnetic force which binds electrons to atoms, and than gravity that keeps stars and galaxies flying apart (Seife 184). It exerts a subtle bend on matter but doesn't obey common sense rules. The weak force can change the identity of a subatomic particle, for example transforming an up quark to a polish quark, or an electron neutrino to a muon
Order your essay at Orderessay and get a 100% original and high-quality custom paper within the required time frame.