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 (Classic Reprint)

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 (Classic Reprint)

by Alexander Graham Bell
     
 

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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

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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.

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Product Details

ISBN-13:
9781332208678
Publisher:
FB &c Ltd
Publication date:
08/05/2015
Pages:
64
Product dimensions:
6.00(w) x 9.00(h) x 0.13(d)

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