Tripler, Charles E. Physicist, inventor. Born in New York, 1849. Educated in New York. Made special study of physical sciences and phenomena. Tripler established private physical laboratory. Experimented in electricity and mechanics, and later in the study of gases. Greatest achievement is the manufacture of "liquid air," which he experimentally applied to the operation of an engine, this product being obtained by compression of atmospheric air at a temperature of over 300 degrees below zero. Tripler died in 1906.

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