Excerpt from A Text-Book of General Physics for Colleges Mechanics and Heat Some changes 'have been made in the form of the usual college text and in the method of presentation. The aim of the writer has constantly been to say the words that would help the student to understand the subject. Thus it is hoped that the book will prove to be not only a treatise but also a text - book for students. Reference matter and tables are placed in the appendix instead of being scattered through the text. This takes less room and is much more convenient for reference. A number of short lists of problems are found where they are needed to illustrate the application of principles learned. Answers to problems are given at the end of the lists, but a student should be, made to understand that numerical results are not so impor tant here as his ability to present the line of argument involved in the problem. The tables of Sines, cosines, tangents, etc., are intended to make the book more desirable as a complete working text. We acknowledge our obligation to the Ball Engine Co. For cuts of the steam engine, to D. Van Nostrand Co. For cut of the Parsons steam turbine, to the Taylor Instrument Companies for the cuts of pyrometers, and to the De Laval Steam Turbine Co. For cuts of the De Laval turbine. 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.

Excerpt from A Text-Book of General Physics for Colleges Mechanics and Heat In the following treatise on mechanics and heat an effort has been made to present the subject in as clear a manner as possible for use of a college student. A knowledge of plane trigonometry is necessary before undertaking this study, and the more mathematics a student knows the better he will ordinarily succeed in physics. Some changes have been made in the form of the usual college text and in the method of presentation. The aim of the writer has constantly been to say the words that would help the student to understand the subject. Thus it is hoped that the book will prove to be not only a treatise but also a text-book for students. Reference matter and tables are placed in the appendix instead of being scattered through the text. This takes less room and is much more convenient for reference. A number of short lists of problems are found where they are needed to illustrate the application of principles learned. Answers to problems are given at the end of the lists, but a student should be made to understand that numerical results are not so important here as his ability to present the line of argument involved in the problem. The tables of sines, cosines, tangents, etc., are intended to make the book more desirable as a complete working text. We acknowledge our obligation to the Ball Engine Co. for cuts of the steam engine, to D. Van Nostrand Co. for cut of the Parsons steam turbine, to the Taylor Instrument Companies for the cuts of pyrometers, and to the De Laval Steam Turbine Co. for cuts of the De Laval turbine. 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.

Excerpt from Mechanics, Molecular Physics and Heat: A Twelve Weeks' College Course This book is neither a laboratory manual in the ordinary sense of the term, nor yet is it Simply a class-room text. It is intended to take the place of both. It represents the first portion of a college course in General Physics in which the primary object has been to establish an immediate and vital connection between theory and experiment. Of course such connection always exists in the mind of the teacher; but the use in class-room and laboratory of separate texts, separate courses, and separate instructors is on the whole unfavorable to making it clear to the student. The stu dent who takes an experimental course which is out of imme diate connection with class-room discussion, who is provided in the laboratory with an isolated set of directions, or with a labora tory manual which is essentially a compendium of directions for all conceivable experiments, may perhaps in some cases obtain, with the aid of references to text-books, a comprehensive grasp of the theory and bearings of his experiment; but it is safe to say that in a great majority of cases he does not do so. The most serious criticism which can be urged against modern laboratory work in Physics is that it often degenerates into a servile following of directions, and thus loses all save a purely manipulative value. Important as is dexterity in the handling and adjustment of apparatus, it can not be too strongly emphasized that it is grasp of principles, not skill in manipulation which should be the primary object of General Physics courses. Furthermore, an intimate connection between lecture and laboratory work is no less important from the standpoint of the former than of the latter. Without the fixing power of laboratory applications, a thorough grasp of physical principles is seldom, or never, gained. This is particularly true in Mechanics, the most fundamental of all the branches of Physics, for it is only through it that the door is opened to insight into the theories of Heat, Sound, Light, and Electricity. 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.

Excerpt from The Elements of Physics, Vol. 1 of 3: A College Text-Book; Mechanics and Heat The beginner in Physics, if he is to be well taught, must study a text-book which contains concise statements of physical laws and a systematic development of principles. He must attend lectures or demonstrations in which the phenomena are shown, and finally he must enter the laboratory and make physical measurements. The present book deals only with the first part of this triple course of instruction. It differs in certain respects from many books which have been written for beginners. Descriptions of the numerous phenomena with which it is necessary for the student to become acquainted have been largely omitted; the assumption being that the study of the text will always be accompanied by, and indeed be supplementary to, a course of carefully arranged and fully illustrated lectures. A knowledge of the elements of the calculus, the natural language of physics, has been taken for granted, but the degree of mathematical experience of the undergraduate reader, necessarily limited, has been kept in view and the various proofs and the demonstra tions have been given the simplest possible form. The concepts of directed and of distributed quantity, which are no less important to the student of physics than are the methods of the calculus, are briefly treated in Chapter II. Of Volume I. And in Chapter I. Of Volume II., respectively, and are used upon occasion throughout the text. 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.

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.

Written over a century ago, this textbook offers an introduction to the principles of general physics. Suitable for college students, the book covers topics such as mechanics, heat, sound, light, and electricity. The book also includes exercises and problems for students to tackle. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Excerpt from Mechanics and Heat: A Text Book for Colleges and Technical Schools The authors have had a very definite point of view in the preparation of this elementary treatise on Mechanics and Heat, and they assume that those to whom this preface is addressed have read their introductory chapter, especially the section entitled The Science of Physics. The most important function of the teacher of physics is to build the logical and mechanical structure of the science; the logical structure mainly by lecture and recitation work including a great deal of practice by the student in numerical calculation, and the mechanical structure by laboratory work. These two phases of physics study should run along together. This text, however, is intended as a basis for the work of the class-room. In their experience, the authors have come to recognize four chief difficulties in the teaching of elementary physics, as follows: One difficulty is that the native sense of most men is incapable, without stimulation and direction, of supplying the material upon which the logical structure of the science is intended to operate. It is necessary to direct the student's attention to many familiar things and to present in the class-room a great many experimental demonstrations of presumably familiar phenomena. A second difficulty is that the human mind, intuitively habituated as it is to consider the important practical affairs of life, can hardly be turned to that minute consideration of apparently insignificant details which is so necessary in the scientific handling even of the most distinctly practical problems. A third difficulty, which indeed runs through the entire front-of-progress of the human understanding, is that mind-stuff, which has been developed as correlative to certain aspects of our ancestral environment, must be rehabilitated in entirely new relations ?n fitting a man for the conditions of civilized life. 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.

Excerpt from Mechanics, Molecular Physics and Heat: A Twelve Weeks' College Course This book is neither a laboratory manual in the ordinary sense of the term, nor yet is it simply a class-room text. It is intended to take the place of both. It represents the first portion of a college course in General Physics in which the primary object has been to establish an immediate and vital connection between theory and experiment. Of course such connection always exists in the mind of the teacher; but the use in class-room and laboratory of separate texts, separate courses, and separate instructors is on the whole unfavorable to making it clear to the student. The student who takes an experimental course which is out of immediate connection with class-room discussion, who is provided in the laboratory with an isolated set of directions, or with a laboratory manual which is essentially a compendium of directions for all conceivable experiments, may perhaps in some cases obtain, with the aid of references to text-books, a comprehensive grasp of the theory and bearings of his experiment; but it is safe to say that in a great majority of cases he does not do so. The most serious criticism which can be urged against modern laboratory work in Physics is that it often degenerates into a servile following of directions, and thus loses all save a purely manipulative value. Important as is dexterity in the handling and adjustment of apparatus, it can not be too strongly emphasized that it is grasp of principles, not skill in manipulation which should be the primary object of General Physics courses. Furthermore, an intimate connection between lecture and laboratory work is no less important from the standpoint of the former than of the latter. Without the fixing power of laboratory applications, a thorough grasp of physical principles is seldom, or never, gained. This is particularly true in Mechanics, the most fundamental of all the branches of Physics, for it is only through it that the door is opened to insight into the theories of Heat, Sound, Light, and Electricity. 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.