Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1903)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 344
Fig. 292. -Radiograph oi the Human Foot in a Shoe.Made by Roentgen rays. THE INDUCTION COIL. 325 capable of producing rays of this light, it penetrates themwith different intensities, according to their density, so thatthe sensitized plate, upon development, shows the shadows ofthe objects inter-… … madeWhen protected plateaffected directlythe negative is termed a radiograph.hand is placed between thethe tube the plate is scarcelyderneath the bones, becauseopaque. Considerable light Fig. 293.—Focus Tube for X-Ray Work. penetrates the flesh and affects portions of the plate directlyunderneath…
Electricity · Magnetism
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