Word: berthelot
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Dates: during 1920-1929
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Also, last week, the French Academy of Sciences−and the scientific world in general−was advised by one of its members, M. Daniel Berthelot, that two friends of his, Messieurs J. Risler and P. Mondain, had a preventative and a cure for radiodermitis. Noting that the long-waved infra-red heat rays are antagonistic to shorter-waved constituents of the Xray, such as the potent ultra-violet*Risler and Mondain had contrived a "ray filter" of plastic material, penetrable only by the infra-red and yellow rays. The long-waved rays thus filtered out were then applied...