An Introduction To Science and Religion.

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AN INTRODUCTION TO SCIENCE AND RELIGION

ESSAY QUESTION

  1. Explain two scientific accounts of the origins of the universe.

The first account that I will explain is the Big Bang theory. In 1929 Edwin P. Hubble, observed a ‘red shift’ in the light coming from distant galaxies, this led to the theory that the universe is expanding in all directions. If we assume that galaxies have always been moving apart at the speeds we now observe, there must have been a time, many, many years ago, when all the galaxies in the Universe were in the same place. In other words, the universe must have begun with a colossal explosion or a ‘big bang’. Additionally it is possible to calculate, from Hubble’s measurements, when this Big Bang occurred. Using Hubble’s Law we can establish that the universe was created around 20 billion years ago.

The position from which the existing universe expanded in an immense explosion of vast amounts of heat and energy is called a spacetime singularity. It is a point from which space and time have come, not a point within space and time. This is a vital characteristic of the theory. In the Big Bang, time and space were created in unison with an explosion that flung matter outwards through space. The metaphor that can be used is that it is though we are in an expanding bubble, as scientists believe that the universe is expanding daily. The temperature of the universe is also decreasing. It is known that by the end of the first second of time, the building blocks of matter had formed. By then end of three minutes helium and other light nuclei had formed but for a long time, temperatures remained too high for the formation of most atoms. At around one million years after the Big Bang, nuclei and electrons were at low enough temperatures to combine form atoms. However the universe didn’t start to look like it does today until small perturbations in the matter allocation were able to condense to form the stars and galaxies we know today.

The Big Bang theory deduces that at one time all of the matter in the universe was consistently spread out as hot gas, which gradually condensed and cooled to form stars and galaxies.

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The second account is the steady state theory. This is an alternative theory to the Big Bang, and was proposed in 1948 by Hermann Bondi, Thomas Gold, and Sir Fred Hoyle. They found the idea of a sudden beginning to the universe philosophically unsatisfactory. Bondi and Gold suggested that in order to understand the universe we needed to make observations of its distant parts, which would of necessity be observations from the past. In order to interpret those observations we must use the laws of physics, and those have been formulated at the present time. If the state of ...

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