《英语自学文选 科技》

CONTENTS5

1．THE SOLAR SYSTEM5

2．SHOOTING STARS7

3．NEWTON AND THE PROBLEM OF GRAVITATION10

4．TIMBER14

5．NEW METHODS OF COMPUTATION16

6．？OUCTION OF STEEL19

7．INCANDESCENTAND FLUORESCENT LAMPS21

8．HOW MANY ELEMENTS ARE KNOWN24

9．THE SIZE AND MOTION OF INVISIBLE PARTICLES27

10．AUTOMATIC CONTROL IN MINES30

11．AUTOMATION IN THE U．S．S．R．33

12．SCIENCE IN ACTION36

13．TAMING THE DESERT39

14．NORTHEAST CHINA—HEAVY INDUSTRY BASE41

15．CHINA’S INDUSTRIAL DEVELOPMENT46

16．EVERYONE A GEOLOGIST50

17．CHINA’S WEALTH54

18．THE TECHNICAL REVOLUTION60

19．HEAT，STEAM，AND POWER66

20．THE INTERNAL COMBUSTION ENGINE71

21．RAILROAD ENGINEERING75

22．HOW YOU’LL FLY WITHIN 50 YEARS79

23．AIR-CONDITIONING AND REFRIGERATION84

24．x-RAYS88

25．SATELLITES WILL BE USEFUL94

26．WHAT WILL WE DO WITH THE MOON98

27．ULTRASONICS AND ULTRASONIC TOOLS107

28．POWER FROM THE SUN113

29．NUCLEAR FIRES118

30．NEW ATOMIC REACTOR AND CYCLOTRON124

VOCABULARY129