What kind of book is A Brief History of Time?

Hawking's original tentative title is A Brief History of Teenagers' Time. The electronic text received by Wu was finally named A Brief History of Time, only two letters short of it, that is, Brief became a comparative brief, which could be translated into A Brief History of Time, but it was not popular enough, so it had to be translated into A Brief History of Time.

According to reports, the book is divided into 12 chapters, entitled: chapter one: thinking about the universe; Chapter two: the evolution image of the universe; Chapter three: the essence of scientific theory; Chapter four: Newton's universe; Chapter 5: Relativity; Chapter six: bending time and space; Chapter seven: the expanding universe; Chapter 8: The Big Bang, Black Hole and the Evolution of the Universe; Chapter 9: Quantum gravity; Chapter 10: Wormholes and Time Travel; Chapter 11: the unity of natural forces and physics; Chapter 12: Conclusion.

This book omits the too abstruse part of A Brief History of Time and rewrites two chapters: Relativity and Curved Space (special relativity and general relativity are discussed respectively). In addition, the accumulation of observation data in recent ten years seems to show that the universe is open and will expand forever, and its expansion rate will increase instead of decrease. In Hawking's new book, the seventh chapter mainly discusses this open model of the universe. Some people think that there is a kind of dark energy in the universe, some even think that Einstein's theory needs to be revised on the cosmic scale, and others think that it shows the effect of the fluctuation and expansion of the super-cosmic horizon, which is one of the hottest issues in contemporary scientific circles. Reading the seventh chapter will lead readers to understand the latest progress of this series of cosmological research.

Wu believes that although A Brief History of Time published after 17 years shows that some previous observations and theories need to be updated, the essence of the two books is still the same. The publication of A Brief History of Time will further stimulate the enthusiasm of the scientific community and the public to explore the mysteries of the universe and bring new inspiration to people.