A Text-Book on Sound
Rev. J.i. Swander
Paperback
(RareBooksClub.com, Sept. 13, 2013)
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1887 edition. Excerpt: ... "insect" illustration of the supposed cause of the marvelous loudness of such sounds based on their supposed pitch! Yet that famed authority was not capable of evolving so simple an overturn to his fallacious explanation. His oversight, however, was manifestly due to his theory, and not to his intellect. He was prevented by the misleading nature of that theory from grasping the essential Law of physical science: that sound, instead of being the mechanical effect produced upon the air by the vibrating instrument, and conveyed through it in pulses or atmospheric leaves, is a real substantial, but immaterial force, and depends for its intensity or quantity upon the sonorous character of the sounding instrument itself vastly more than upon its mechanical motion, just as the amount of substantial electricity issued from a dynamo machine depends chiefly upon the electrical quality of the magnetic apparatus, and secondarily upon the mechanical rotation given it. This important law we have given in substance in the different editorials to which we referred a moment ago, but we have not before emphasized it as we now do, as an impregnable law of science, upon which the substantial character of sound as one of the forces of Nature may alone rely without the fear of successful assault. It stands, as a new and overwhelming discovery, in the same relation to sound that the law announced last month (page ICO) occupies in relation to the substantial nature of heat, and these two law3 should be placed side by side in the ultimate formula of the Substantial Philosophy. We thus begin to realize the revolutionary value of the fact so frequently reiterated in these pages that the locust with one-tenth as much vibratory action on the air as that...