Brief History Of Time By Stephen Hawking
The author who wrote this book Mr. Stephen Hawking is regarded as the most brilliant theoretical physicistt science Einstein. Stephen wrote this book explaining different theories that earlier scientists, philosphers and astronomers had about the univerise.
In his book he wrote about the different theories and opinions people have about the univerise. Why does it iexist? How the universe was created and where is it taking us? Some of the theories he wrote about discussed how some people thought the universe evolved and described the opinioins and ideas that events and natural phenomena were controlled by spirits with human emotions who acted in a very humanlike and unpredictble manner. he described how these spirits inhabited natural objects, like the rivers and mountains, includingcelestial bodies, like the sun and moon. Asking questions like why does the sun rise on the west side of the world and not on the east?
He talked about the Greek philosopher Aristotle and how he thought the earth was round rather than a hot plate. Aristotle realized this is when he noticed that the eclipses of the moon were caused by the earth coming between the sun and moon. The earth's shadow on the moon was always round, which would only be true if the earth was spherical.
He also explained why Aristotle thought the earth was stationary and that the sun, the moon, the planets, and the stars moved in circular orbits about the earth. he believed this because he felt, for mystical reasons, that thte earth was the center of the universe, and that tcircular motion was the most perfect. Thise idea was elaborated by Ptolemy in the second century AD into a complete cosmological model. The earth sttod at the center, surrounded by eight spheres that carried the moon, the sun, the stars, and the five planets known at the time, Mercury, Venus, Mars, Jupiter and Saturn.
How Isaac Newton not only put forward a theory of how...
Please login to view the full essay...