The Beginning Of Time The Big Bang

1252 words - 5 pages

THE BEGINNING OF TIMEThere was a period in history when the beginning of the world in which welive in was a expressed through legends and myths, now, through the use ofincreasingly advanced scientific equipment we can see that the universe is morevast and complex than ever imaginable. The purpose of this paper is to bringlight to some of the modern beliefs regarding the origin of the universe byanswering a series of questions. What are the commonly excepted theories ofthe evolution of the universe? What is meant by the 'Big Bang Theory' and howdoes it work? And how our planet and solar system developed from The BigBang? This paper will use scientific data to base the evolution of our universearound The Big Bang.At the present time there are two theories which are used to explain thecreation of the universe. The first theory is the infamous Big Bang Theory,which will be detailed later. The second is the Steady State Theory.(Weinberg, 1977)The later hypothesis was created to replace the common belief that theuniverse was completely static. The expansion of the universe was discoveredin 1929 when Edwin Hubble discovered that every galaxy in the universe wasmoving away from each other, this meant that the universe was expanding.Hubble found the movement of the galaxies by using a phenomenon known asthe Doppler effect. This effect caused bodies moving away from an observer tohave a 'red-shifted' spectrum (the light spectrum of the body had been shiftedcloser to red) and bodies moving towards an observer to be 'blue-shifted'(Hawking, 1988)The expansion was traced backwards through time to discover that all thegalaxies had originated from the same point. It was later believed that all matterspawn from that 'center of the universe' discovered by Hubble, by means ofsome sort of enigmatic portal. Matter would collect outside this singularity andform every moon, planet, and star known today.The Steady State Theory was very attractive because it featured auniverse with no beginning or end. The theory meant that scientist had toabandon the laws of conservations of mass and energy. It seemed plausiblethat the aforementioned laws of physics could breakdown at a certain point butmore and more evidence gathered against the Steady State Theory, leading tounending modifications to it. Until finally the theory was dropped completely withthe discovery of the smooth microwave background radiation (radiation soancient it had shifted right out of the visible spectrum into microwave radiation).A smooth background to the universe suggested that it was hot and uniform - theideal conditions for the Big Bang. (Weinberg, 1977)The Big Bang was almost exactly what it sounds like - a giant explosion.During this explosion all the materials in the universe today (matter, energy andeven time) were expelled into a vacuum about 12 billion years ago. Thecombined mass of the universe was interpolated to a point of zero volume(therefore infinite density). It is impossible to predict...

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