Electro-diagnosis and electro-therapeutics - a guide for practitioners and students (1904) (14593003227)

Identifier: electrodiagnosis00cohn (find matches)

Title: Electro-diagnosis and electro-therapeutics : a guide for practitioners and students

Year: 1904 (1900s)

Authors: Cohn, Toby, 1866-1929 Scratchley, Frances A

Subjects: Electrodiagnosis Electrotherapeutics Electric Stimulation Therapy Electrodiagnosis

Publisher: New York : Funk & Wagnalls

Contributing Library: Francis A. Countway Library of Medicine

Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

Text Appearing Before Image:

gers ofthese jars sparks, whose strength and size grow with thepower of the Euhmkorff apparatus. These sparks, how-ever, it has been proved, are not uniform streaks oflight, but rather consist of innumerable, very rapid, in-visible oscillations. Now, if the outer covering of theLeyden jars is connected with a solenoid (a short spiralof thick copper wire), there is produced in this latter acurrent with just as many interruptions as the leapingspark has oscillations; for every one of the hundredthousand oscillations per second which result means aninterruption of the current circulating in the solenoid.Consequently, the current tension in the solenoid risesto from 100,000 to 1,000,000 volts. This current may be conducted to the body from thesolenoid itself or from a secondary spiral connected withit. It is so strong that, by mere radiation through theatmosphere, it causes an unconnected incandescent lightto glow, tho held at a considerable distance (Teslalight). 246 ELEGTR0-THEEAFEUTIC8

Text Appearing After Image:

TESLAIZATION 247 In Figs. 46 and 47 there is shown one of the apparatus instrumentsconstructed for the application of high-frequency cur-rents, ^ made by the firm of Eeiniger, Gebbert & Schall

electro diagnosis and electro therapeutics a guide for practitioners and students 1904 книжные иллюстрации лекарство медицинские иллюстрации история болезни история техники электроэнергия электричество лечебная терапия электротерапия изображения из интернет-архива

1904

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