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Tuesday, October 14, 2008

Big Bang Theory;;Have u ever wonder



Have u ever wonder how this universe was set up by an extraordinary calculation based on science?Last nite i wondered how it happened while i was capturing some of photos.I then try to find some of the info based on science n Islam.Basicly,the theory of Big Bang was not persistly as what it exactly happened but they conclude it in one theory.Theres some info dat i discovered n this really2 open my eyes how coplicated it was.

The Big Bang theory is the current dominant scientific theory explaining the acceleration of matter throughout the Universe. Big bang theories are actually a class of scientific models that describe the Universe as expanding from a very hot, dense state approximately 13.7 billion years ago(although this number has changed several times throughout recent history). It was first proposed by Georges-Henri Lemaitre and evidence for the expansion was observed by Edwin Hubble. Later George Gamow predicted that the Big Bang would leave an observable microwave background radiation (or CMBR). This radiation was subsequently discovered by Arno Penzias and Robert Wilson at Bell Labs and found to be close to that predicted by Gamow (Gamow predicted a background radiation level equivalent to a roughly 3 K black body object, and the observed level is that of a 2.725 K body). Pensiaz and Wilson were awarded a Nobel Prize in 1978 for their work.

The term "Big Bang" implies an explosion of matter into pre-existing space, but the theory actually indicates that space is dynamic and more space is constantly created in the interstices between particles as the density of the universe falls. In other words, the Big Bang describes the expansion of space and time. Big Bang theorists state that the Hubble redshift is a consequence of this stretching of the fabric of space.

Observations of distant supernovae indicate that the Universe is actually undergoing accelerated expansion and galaxy surveys and recent observations of the microwave background have corroborated these claims. Conventional wisdom is that the acceleration is caused by some sort of dark energy, which has not yet been directly observed.

Scientists refer to the exact moment the Big Bang began as t=0 ("t" standing for "time"). At this time, all of the matter in the universe - in fact, the universe itself - was contained within a single point (a single point in mathematics is infintessimally small). A burst of energy known as the Big Bang issued forth, and the universe began. 1.0×10-43 seconds later, the force of gravity separated from the other forces. In 2006, researchers used the Wilkinson Microwave Anisotropy Probe (launched by NASA in 2001) to measure variations in the cosmic microwave background (a "faint glow which permeates the universe"). According to these measurements, the universe is estimated to be about 13.7 billion years old, "give or take a few hundred-thousand years"

According to the Big Bang theory, the universe emerged from an extremely dense and hot state called the original singularity.

1 Kritikan Hebat:

Anonymous said...

ko bebel pe tep....kekekeke-lijas