File:A manual of practical medical electricity - the Röntgen rays and Finsen light (1902) (14597036598).jpg

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Identifier: manualofpractica00turn (find matches)
Title: A manual of practical medical electricity : the Röntgen rays and Finsen light
Year: 1902 (1900s)
Authors: Turner, Dawson
Subjects: X-Rays Electrophysiology Electrosurgery Electric Stimulation Therapy Electrotherapeutics X-rays Electrophysiology Electrosurgery
Publisher: New York : William Wood & Company
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

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Fig. 82.—Lamps in Parallel for Charging an Accumulator. so brightly as they would do if the accumulator wereremoved, while if by mistake the accumulator had been
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Fig. 83.—Plan of Connections for Charging anAccumulator from the Mains. wrongly connected to the wires the lamps would glowmore brilliantly than they would do normally. This, then, 136 A Manual of Practical Medical Electricity may be used as a test as to the polarity of the main wires;the accumulator must be connected so that the lamps aredimmed. Another way of distinguishing the polarity ofthe wires is, keeping them well apart, to plunge them intowater into which a pinch of salt has been thrown. Gaswill be given off from both poles, but most will arise fromthe wire connected to the negative pole. Again, a pieceof moistened litmus-paper will be coloured red by thepositive pole and blue by the negative ; in doing thisexperiment both wires must be made to touch the litmus-paper. The strength of the current passing through the accumu-lator will depend upon the candle-power of the lamps andupon the number of lamps connected in parallel, and mustbe suited to the capacity of the accumulat

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Flickr tags
InfoField
  • bookid:manualofpractica00turn
  • bookyear:1902
  • bookdecade:1900
  • bookcentury:1900
  • bookauthor:Turner__Dawson
  • booksubject:X_Rays
  • booksubject:Electrophysiology
  • booksubject:Electrosurgery
  • booksubject:Electric_Stimulation_Therapy
  • booksubject:Electrotherapeutics
  • bookpublisher:New_York___William_Wood___Company
  • bookcontributor:Francis_A__Countway_Library_of_Medicine
  • booksponsor:Open_Knowledge_Commons_and_Harvard_Medical_School
  • bookleafnumber:158
  • bookcollection:medicalheritagelibrary
  • bookcollection:francisacountwaylibrary
  • bookcollection:americana
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30 July 2014

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