X rays, an introduction to the study of Röntgen rays (1914)
Kaye, G. W. C. (George William Clarkson), 1880-1941 · London : Longmans, Green · leaf 45
een found. By this method, ProfessorThomson has been able to de-termine the atomic weights ofnumerous elements,1 and has,indeed, discovered substances asyet unknown to the chemist.When, for example, nitrogen is put into the tube thereare seen on the photographic plate parabolas correspondingto N+… … Fig. 11.—Photograph obtainedby J. J. Thomson of parabolic lociof positive particles subjected tomagnetic and electric fields at rightangles to each other. The differ-ent traces represent different sub-stances. In the figure, the magneticdeflections are vertical. The mag-netic field was reversed…
X-rays
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