RADIATION
BY P. PHILLIPS
D.Sc. (B'HAM), B.Sc. (LONDON), B.A. (CANTAB.)
LONDON: T. C. & E. C. JACK
67 LONG ACRE, W.C., AND EDINBURGH
NEW YORK: DODGE PUBLISHING CO.
1912
CONTENTS
CHAP.
[INTRODUCTION]
I. [THE NATURE OF RADIANT HEAT AND LIGHT]
II. [GRAPHIC REPRESENTATION OF WAVES]
III. [THE MEANING OF THE SPECTRUM]
IV. [THE LAWS OF RADIATION]
V. [FULL RADIATION]
VI. [THE TRANSFORMATION OF ABSORBED RADIATION]
VII. [PRESSURE OF RADIATION]
VIII. [THE RELATION BETWEEN RADIANT HEAT AND ELECTRIC WAVES]
[INDEX]
INTRODUCTION
We are so familiar with the restlessness of the sea, and with the havoc which it works on our shipping and our coasts, that we need no demonstration to convince us that waves can carry energy from one place to another. Few of us, however, realise that the energy in the sea is as nothing compared with that in the space around us, yet such is the conclusion to which we are led by an enormous amount of experimental evidence. The sea waves are only near the surface and the effect of the wildest storm penetrates but a few yards below the surface, while the waves which carry light and heat to us from the sun fill the whole space about us and bring to the earth a continuous stream of energy year in year out equal to more than 300 million million horsepower.