Excerpt from Text-Book of General Physics for High Schools and Colleges
Matter may be divided into two great classes: that which is living, such as plants and animals; and that which is not, such as pieces of wood and glass, water, and air. Physics is, broadly speaking, the science concerned with this second division of matter, which may be called ordinary matter; and phenomena occurring in connection with matter of this kind are called physical phenomena. Many of these occur also in all forms of living matter; but associated with them there are other phenomena which have not as yet been proved to be physical.
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Excerpt from Text-Book of General Physics for High Schools and Colleges
The Ether. - A careful study of the phenomena of light led philosophers many years ago to the belief that there is present in space another medium for phenomena than that furnished by ordinary matter. As we shall see later, there is every reason for believing that throughout the vast regions of space in the solar system, and beyond, ordinary matter is absent, except in certain cases as thin atmospheres around the planets and stars; it is also known that the sensation which we call light is due to the fact that waves enter the eye; therefore, when one sees a star, one has evidence that waves have left the star and have crossed space void of ordi nary matter. There must be present, then, in this space a medium that can carry waves: it is called the ether (sometimes and its properties will be discussed more fully in what follows. Similarly, in order to explain many electrical and magnetic phenomena, it was necessary to assume the existence of a medium different from ordinary matter, and one of the great achievements of the last century was the proof that this medium was the ether. There is, moreover, at present no evidence of the existence in our uni verse of any other media than ordinary matter and the ether.
About the Publisher
Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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Paperback. Condición: New. Print on Demand. This book provides a concise, logical, clear introduction to the theory of physics. Beginning with an overview of the history and development of physics, the author leads the reader through the fundamental principles and accepted theories that form the foundation of the natural sciences. The text approaches the subject through the lens of kinematics, and progresses to more advanced topics including thermodynamics, and the study of vibrations, waves, sound, light, magnetism, and electricity. The author offers numerous historical references to illustrate the evolution of physical thought, and provides many sample problems with detailed solutions to aid in reader comprehension. This enlightening text is a must-read for anyone interested in gaining a comprehensive understanding of physics. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Nº de ref. del artículo: 9781334358289_0
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Librería: PBShop.store US, Wood Dale, IL, Estados Unidos de America
PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000. Nº de ref. del artículo: LX-9781334358289
Cantidad disponible: 15 disponibles
Librería: PBShop.store UK, Fairford, GLOS, Reino Unido
PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000. Nº de ref. del artículo: LX-9781334358289
Cantidad disponible: 15 disponibles