Man's physical universe

xanabras

Preface

Acknowledgments

CONTENTS

PAGE

v

ix

Introduction 1

Section 1.

Section 2.

UNIT I

THE INTELLIGENT SOLUTION OF PROBLEMS AS

THEY ARISE IS THE PRICE OF LIBERTY

Problem-solving Ability Is One of the Most Important Aims of

Education in a Democracy 5

The Scientific Attitude Is Essential to the Satisfactory Solution

of Problems . . . . . . . . . .11

Section 3. The Supreme Contribution of Science to Humanity Is Its

Method of Solving Problems 20

Section 4.

Observations Must Be Controlled and Checked to Insure Their

Reliability 28

Section 5. Organization Is Necessary to Give Significance to Data . . 35

Section 6. Straight Thinking Is Essential to the Pursuit of Truth .

UNIT II

. 42

THE UNIVERSE IS A VAST SYSTEM OF PARTS MOVING

AND CHANGING UNDER THE INFLUENCE OF A FLOW OF ENERGY

Section 1. Many Ideas Concerning the Nature of the Universe Were

Developed from the Time of the Early Greeks to That of

Galileo 53

Section 2. Telescopes Have Greatly Expanded Man's Conception of the

Section 3.

Material Universe 61

Many Instruments Supplement the Telescope in Exploring the

Universe ........... 69

Section 4. Our Galaxy Is But One of Many Galaxies .... 81

Section 5. The Earth Receives Most of Its Energy from the Sun . . 86

Section 6. Newton's Laws Are Universal in Their Application . . 91

Section 7.

The Earth Is But One of the Sun's Planets Whose Motion Follows

Universal Laws 101

Section 8. Comets and Meteors Are Other Interesting Members of Our

Solar System . . . . . . . . . .111

Section 9.

Astronomical Measurements Are Used to Measure Time, to Fix

the Calendar, and to Aid in Navigation 118

xi

More magazines by this user
Similar magazines