with light, there are bodies transparent concave mirror. These rays, striking the anode or to the X rays, that there are others that absorb them itself sharply from the screen. positive pole, which is in the form of a plane mirror, In order to succeed with these simple experiments in more or less,… … RADIOSCOPIC EXAMINATION OF A VALISE AT THE CUSTOM HOUSE. ) 1897 SCIENTIFIC AMERICAN, INC.
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