时间简史英语ppt.ppt

1、A Brief history of time,Author：LY Wang,2,Writer,A brief history of time is written by great British physicist Stephen Hawking , which is a theoretical physics popularization of science.,3,Summary,“ A brief history of time, this is a book contains so many words, even the author himself said, this is

2、a very long book, however, time is not always, it may not be contained any space, so the time is no start and no end is the author of the book professor hawking at the end of the entire book to express the ultimate intention.,4,Main Contents Introduction,“A brief history of time”, mainly introduces

3、three questions： 1 What is the universe 2 Space and time 3the theory of relativity,1-What is the universe,The book does not give the answer to the 。. Although we cant find an explanation of the entire universe theory, But we can put the problems into many small pieces, and invented many parts of the

4、 theory, every part of the theory explanation of limited scope, while ignoring other effects.,6,2- Space and time,Before Einstein, almost all people think that is the absolute time and space.Einstein founded the theory of relativity is tell people, there is absolutely no things, everything is relati

5、ve.Lets consider a special case: imagine a universe, where there is nothing. For such a universe, time and space is meaningless, because there is no way to measure them. Visible space and time are attached to the objects to exist.,7,3-the theory of relativity,Relativitys greatest contribution is to tell us the light has speed , and nothing can be faster than t