Thursday, October 17, 2013

Review - A Brief History of Time

A Brief History of Time

AUTHOR:Stephen Hawking
REVIEWER:Dylan Haynes

I warn you, this is not a children's book. I sometimes personally had to read each paragraph several times to get the information in my head, and it felt like I had forgotten the English language. Apart from that, I had no trouble reading it, and I would suggest 12+ readers, but mainly eager theoretical scientists trying to get that degree that seems only just out of your grasp.

Stephen Hawking, who suffers from Motor Neurone Disease, has spent many years as a theoretical scientist, and despite his condition, has debatably become the greatest British scientist of this generation. He has proved this by writing A Brief History of Time.

In this book he explains our perspective of the universe and adds to it in great detail, explaining a number of scientific facts and theories. Here are some that interested me.

  • The 3 Dimensions and what they are. A 3-D object comprises 3 Dimensions: Motion, Depth and Height. "Depth" is the x axis on your typical graph.

  • How nothing 2-D can live. A 2-D creature cannot live (in terms of life as we on Earth know it) because it would have to excrete by the same means as it ate - through the mouth! This is because, if there was a tube running through its body, the body would fall apart. The same goes for blood flowing around the body.

  • The Chandrasekhar Limit. The Chandrasekhar Limit is the limited amount of mass a star can have before its death, so that when it dies, it becomes a stable cold star. Above this, it with become a supernova or a black hole.

  • How black holes aren't so black. Black holes may be black, but they do sometimes seem to give off particles! This is due to particle + anti-particle pairs being absorbed by the black hole.

  • How the universe might end in a big crunch or a big freeze. There are two big theories for the fate of the universe (according to Stephen Hawking and other scientists):The Big Crunch and the Big Freeze. 1. The Big Crunch claims the universe might end like it started - as a singularity. A singularity is a point in space-time around which a black hole may form. The universe will shrink to this size, then (maybe) create a new universe. 2. The Big Freeze claims the universe with continue expanding, until (and past when) space will get cold and dark, and life as we know it will end.

For more information on the universe, read the book and/or watch Stephen Hawking's Universe(also known as Into the Universe with Stephen Hawking) on Youtube.

I rate this: 10 STARS!!
* * * * *
A Must Read!

Dyl Out.

No comments:

Post a Comment