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Scientific American, Vol. 77, No. 6 (1897) (1897)
leaf 7
with light, there are bodies transparent coneave 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,… … HOUSE, © 1897 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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