Essay on A Brief History Of Time by Stephen Hawking

A brief history of time by Stephen Hawking is a novel about the known range of time from the big bang up to black holes. Hawking talks about different theories and how they have changed over time from Copernicus to himself. He combines all known physics and astrophysics and displays them quickly and simply. He states that the goal of science is to able to accurately describe the universe in one theory. As he tells about theories that have disproved other theories of that time, it is proof that science is an ever-changing. About 13.8 billion years have passed and only in the past 100 years have humans even come close to figuring out how it started. Georges Lemaitre was the first to propose the idea of the ‘big bang theory’ as the creation†¦show more content†¦But over time, like people on a merry-go-round, the debris started spinning and eventually flattened out into a giant disc. But the universe is not the only thing that flattens out like this, planets do to. Planets flatten out small amounts over time due to the pull of gravity by other things and the planetary rotation that compresses everything towards the planets equator. Because of the spiral compression, the universe overall went from rough, after the big bang, to smooth, as everything spins and becomes compressed. The size has drastically changed as well, from being at an atomic level to as big as it is today. Although it is hard to compare it to and atom because before the big bang, it is speculated that there were no atoms. The expansion of the universe is too great to put into rational numbers for multiple reasons. No one knows for sure how small or big the universe was at the beginning and current beliefs show that the growth of the universe is as close to infinite as anything can be. During the big bang, everything was rather hot, according to Stephen Hawking it would be â€Å"infinitely hot†. But shortly after, about one second after, the temperature would have dropp ed to around ten thousand-million degrees, which is about a thousand times the suns temperature. Like the other changes, the big bang also changed states. Before the big bang, there was nothing, only energy. Eventually the energy created matter that came to be everything we know andShow MoreRelatedBrief History Of Time By Stephen Hawking2268 Words   |  10 PagesFor the second semester book report I chose to read A Brief History of Time by Stephen Hawking. Before I started reading I knew what I signed up for. A lot of math, science and complicated stuff that sometimes makes my head hurt. Nonetheless A Brief History of Time is about the history of science, history of how the universe began and how the journey of finding the theory for everything has been going. 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