什么是相对论?PDF电子书下载

1 FAMILIAR EXAMPLES OF REIATIVITY 1

Does every Statement have a Meaning? 1

Right and Left 1

Is it Day or Night just now? 3

Who is bigger? 3

The Relative seems Absolute 4

The Absolute proves to be Relative 6

"Common Sense"tries to protest 8

2 SPACE IS RELATIVE 9

The same Place or not? 9

How does a Body move in Reality? 12

Are all Points of View equivalent? 13

Rest is found! 15

The Laboratory at Rest 16

Is the Train moving? 16

Rest is lost for good 19

The Law of Inertia 21

Speeds too are relative! 23

3　THE TRAGEDY OF LIGHT 23

Light does not spread instantaneously 23

Can the Speed of Light be altered? 24

Light and Sound 25

The Principle of Relativity of Motion seems to be shaken 26

"World Ether" 29

A difficult Situation arises 31

Experiment must decide 32

The Principle of Relativity triumphs 34

Out of the Frying Pan into the Fire 35

4　TIME PROVES TO BE RELATIVE 37

Is there in Fact a Contradiction? 37

We go on a Train Journey 39

"Common Sense"in Disgrace 40

Time suffers the same Fate as Space 43

Science Triumphs 46

Speed has a Limit 47

Earlier and Later 50

5　CLOCKS AND RULERS PLAY TRICKS 52

We get on the Train again 52

Clocks go slow systematically 56

The Time Machine 58

Journey to a Star 61

Objects get shortened 64

Velocities play Tricks 68

6　WORK CHANGES MASS 72

Mass 72

Mass increases 73

How much does a Gram of Light cost? 76

SUMMING UP 78

APPEND？X:The Year of Dr.Einstein 83

参考译文 116