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