Chapter 12 of A Brief History of Time tells the most advanced knowledge about the nature of the universe, including: our cosmic image, space and time, the expanding universe, the uncertainty principle, black holes, the origin and fate of the universe, etc. And introduce distant galaxies, black holes, particles, antimatter and other knowledge in a simple way, and elaborate ancient propositions such as the origin of the universe, time and space, and relativity.

In this book, Hawking discusses the unresolved conflicts in the existing theories of the universe and points out the problems in unifying quantum mechanics, thermodynamics and general relativity. The orientation of this book is to let ordinary readers who are interested in cosmology know his theory and its mathematical principles.

Extended data:

Shortly after the publication of Primitive Universe, Hawking decided to write a cosmology book that was very attractive to the public. This book is a brief history of time. Unfortunately, this book has been delayed until 1985, because Hawking was unfortunately infected with pneumonia when he visited the quantum physics laboratory of the European Atomic Energy Institute in Geneva, Switzerland. Because of his serious illness, Hawking was sent to Ardenbrook Hospital of Cambridge University for tracheotomy.

Although this operation saved Hawking's life, he can no longer use his voice. Hawking used a small computer speech synthesizer connected to a wheelchair to "speak" by hand. It's inconvenient for Hawking, but it's easy for the audience who couldn't hear clearly before. Before using this speech synthesizer, only the people closest to him could understand what he said. Hawking's A Brief History of Time was finally published in 1988.

References:

Baidu encyclopedia-a brief history of time