File:Induction coils - how to make, use, and repair them including Ruhmkorff, Tesla, and medical coils, Roentgen radiography, wireless telegraphy, and practical information on primary and secondary battery (14754584381).jpg

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Identifier: inductioncoilsho00schn (find matches)
Title: Induction coils : how to make, use, and repair them including Ruhmkorff, Tesla, and medical coils, Roentgen radiography, wireless telegraphy, and practical information on primary and secondary battery
Year: 1901 (1900s)
Authors: Schneider, Norman H. (Norman Hugh)
Subjects: Induction coils Radiography X-rays Radiography
Publisher: New York : Spon & Chamberlain London : E. & F.N. Spon
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

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FiG. 40. mitted through the prism, the color whichpredominates, in the flame will predomi-nate in its spectrum. The combination ofa prism and tubes for observing theseeffects is a spectroscope (Fig. 41). Theshort fat spark from the Rhumkorff coil ismost useful in this work. The electrodes spectrum A dialysis. 33 are provided with a portion of the sub-stance to be examined, and the spark is
Text Appearing After Image:
Fig. 41. passed and viewed through the spectro-scope. The spectroscope is shown in connec-tion with the coil in Fig. 41. ^ is the 134 Spectrum Analysis. aperture in the screen through which therays from the metal burning at the dis-charger balls D D passes. The lens at Lis used to view these rays after they havebeen decomposed by the prism P, which,as well as the lens, can be rotated. / isthe coil, P P the primary and 5 5 the sec-ondary wires, C being a condenser bridgedacross the circuit. The screen should be pierced by a verynarrow aperture, A, and be placed at aconsiderable distance from the prism P,that the rays issuing through the aperturemay not strike the prism until they havewidely diverged and become separatedfrom each other. The aperture is practi-cally formed of perfectly parallel knifeedges, forming a slit not exceeding onehundredth of an inch in width. The colored spaces in the solar spec-trum do not occupy an equal extent ofarea ; the violet is the most extended, theoran

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Flickr tags
InfoField
  • bookid:inductioncoilsho00schn
  • bookyear:1901
  • bookdecade:1900
  • bookcentury:1900
  • bookauthor:Schneider__Norman_H___Norman_Hugh_
  • booksubject:Induction_coils
  • booksubject:Radiography
  • booksubject:X_rays
  • bookpublisher:New_York___Spon___Chamberlain_
  • bookpublisher:_London___E____F_N__Spon
  • bookcontributor:Francis_A__Countway_Library_of_Medicine
  • booksponsor:Open_Knowledge_Commons_and_Harvard_Medical_School
  • bookleafnumber:160
  • bookcollection:medicalheritagelibrary
  • bookcollection:francisacountwaylibrary
  • bookcollection:americana
Flickr posted date
InfoField
27 July 2014

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