Upon the Electrical Experiments to Determine the Location of the Bullet in the Body of the Late President Garfield

Bücher

Angebote / Angebote:

Excerpt from Upon the Electrical Experiments to Determine the Location of the Bullet in the Body of the Late President Garfield: And Upon a Successful Form of Induction Balance for the Painless Detection of Metallic Masses in the Human Body The influence that is exercised upon induction by metallic masses has formed the subject of numerous experiments by different investigators, and the principle of balancing the effects of induction on one portion of a circuit by equal and opposite effects produced upon another portion has been utilized in nearly all such investigations. The earliest form of induction balance for this purpose appears to have been devised in Germany by Prof. Dove, about the year 1841, and a good description of it in the English language may be found in De la Rive's "Treatise on Electricity, " (1853 edition, vol. I, pp. 418-433) Another and superior arrangement for the same purpose is the well-known induction balance of Prof. D. E. Hughes. The Static Induction Balance of J. E. H. Gordon though primarily intended for experiments upon specific inductive capacity, might also, perhaps, be employed in the same class of investigations. My own attention was directed to the balancing of induction a number of years ago by the disturbing noises produced in the telephone by the operation of telegraphic instruments upon lines running near the telephone conductor. 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.