Monday, 24 July 2017

A Series of Books #A Brief History of Time

"… within a few years we should know whether we can believe that we live in a universe that is completely self-contained and without beginning or end." - Stephen Hawking, 1996

Human's nature always want to know more, the curiosity making us exploring and embarking to a journey of finding something. Human feel the purpose of life when they busy with finding and that's how science is growing. It starts from questioning and making assumptions to proving the idea of how the world starts and evolving, or is it? Initially, observation is made by saying the world is on the back of a giant tortoise and there is something holding the sky so that it is hanging.  It then changes to the world is flat and if you sail straight to the end of the sea, you will fall. The world is rectangle, they said. Then come in the Greek philosopher, Aristotle saying that the earth is round sphere rather than a flat plate.

Before the word "scientist" is heard, the philosopher explains their theory of earth inside their books. A philosopher, who offers views or theories profound questions in a lot of things and establishes the central ideas of some movement.  There are three things that Aristotle realise that makes him says that the world is sphere:
• That eclipses of the moon were caused by the earth coming between the sun and the moon. The earth's shadow on the moon was always round, which would be true if only the earth is spherical.
• The Greeks knew from their travels that the North Star appeared lower in the sky when viewed in the south then it did in the more northerly regions.
• The third argument is why else does one first see the sails of a ship coming over the horizon and only later see the hull?

There are a lot of observations been made to come out with a theory that initiates the discovering of something that can lead to another. A good theory is when it satisfies two requirements. It must be accurately describe a large class of observations on the basis of the model that contains only a few arbitrary elements, and it must make definite predictions about the results of future observations. It is not only Aristotle that given out his ideas of the beginning of time, Newton have some says too and also Galileo, from the beginning. These people were living at the same time and those introduced theories have been circulated, that's why it's expanding and more people were involved in the quest of finding the complete description of the universe we live in.

The book A Brief History of Time explains not only about the realisation on the earth is a sphere but also talking about time and space. For an enthusiast of science or people who wants to start learning about science, this book gives you the satisfaction of understanding the process of discovering our world from the mind of intellectuals that been said in the simplest word. There is  a pulling force to drawn you in while reading this book and the feeling is so good you wanted to know more as you flip the pages. The possibility of time-travel also been discussed as what triggers the possibility of it.

 Stephen Hawking ended this book with;
"Despite the vastness of multiverse, there is sense in which we remain significant: we can still be proud to be part of a species that is working all this out. With that in mind, the coming years should be just as exciting as the last twenty"

I thought, while reading this book, how there is more any other findings if all these intelligent already discovers the world since the last twenty decades, what more new than what we already knew? However, the last sentence from Stephen Hawking made me realise that each one of us has a role to play. I might not be the key person to make a new discovery or establish a new theory but I may help to make or to prove the theory to be true. And when the theory of the life is proven, we will be settled on one point and starts to discover another point.

Life is a journey, of discovering and understanding a lot of the life.

p/s: I didn't know that there is something smaller than an atom or a proton and these scientist gives all the weird names for every new things they discovered. It is hard to keep up. Nonetheless, keep reading it cause it gives you insight on other people's mind.

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