File:Journal of roentgenology (1918) (14754904341).jpg

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Description
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Identifier: journalofroentge1191west (find matches)
Title: Journal of roentgenology
Year: 1918 (1910s)
Authors: Western Roentgen Society
Subjects: Radiology
Publisher: Iowa City, Iowa : Western Roentgen Society, 1918-1919
Contributing Library: The College of Physicians of Philadelphia Historical Medical Library
Digitizing Sponsor: The College of Physicians of Philadelphia and the National Endowment for the Humanities

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Text Appearing Before Image:
STRUCTURAL PLAN OF A SIMPLE CRYSTAL This drawing represents the structure of a crystal of potassium chloride,a substance similar to ordinary salt, as deduced from Its action upon X rays.The dark spheres represent chlorine atoms, the light ones atoms of po-tassium. It will be seen that the unit of structure of the crystal Is theIndividual atom, since all of the atoms are equidistant from their Imme-diate neighbors. For the sake of clearness, the spaces between the atomshave been exaggerated, as compared with their diameters. Illustration Copied from Comstock and TrolandFigure Three ORNDOFF —ROENTGEN TUBE
Text Appearing After Image:
TO SHOW HOW RADIATION IS PRODUCED BY STOPPINGTHE MOTION OF AN ELECTRICAL PARTICLE The diagram at the left represents a charge of electricity with its radiat-ing lines of forces. We will suppose this charge with its lines to be mov-ing uniformly In the direction indicated by the arrow in the diagram at theright. When the charge is suddenly brought to rest the lines have atendency to continue in motion, and do so until, so to speak, the news ofthe stopping of the charge has reached them. This news travels out-wards from the charge with the velocity of light, along with the kinks Inthe force-lines which result from the discrepancy between the actual andthe expected position of the charge. These kinks contain electro-magnetic energy and constitute light and other forms of electro-magneticradiation. Such radiation is produced whenever any change whatsoeveroccurs In the state of uniform motion of an electrical charge. Illustration Copied from Comstock and TrolandFigure Four ROENTGENOLOGY AS

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https://www.flickr.com/photos/internetarchivebookimages/14754904341/

Author Internet Archive Book Images
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(Reusing this file)		 At the time of upload, the image license was automatically confirmed using the Flickr API. For more information see Flickr API detail.
Volume
InfoField
1918
Flickr tags
InfoField
  • bookid:journalofroentge1191west
  • bookyear:1918
  • bookdecade:1910
  • bookcentury:1900
  • bookauthor:Western_Roentgen_Society
  • booksubject:Radiology
  • bookpublisher:Iowa_City__Iowa___Western_Roentgen_Society__1918_1919
  • bookcontributor:The_College_of_Physicians_of_Philadelphia_Historical_Medical_Library
  • booksponsor:The_College_of_Physicians_of_Philadelphia_and_the_National_Endowment_for_the_Humanities
  • bookleafnumber:34
  • bookcollection:medicalheritagelibrary
  • bookcollection:collegeofphysiciansofphiladelphia
  • bookcollection:americana
Flickr posted date
InfoField
27 July 2014

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