50 and 100 Years Ago; November 1993; Scientific American Magazine; by Staff Editor; 1 Page(s)
NOVEMBER 1943 Air-conditioning of submarines is now possible through use of a non-toxic, non-explosive fluid, called 'Freon-12,' fluorine refrigerant, which is non-poisonous, has no odor, and will not support flame. It does not explode should it come into contact with the electric stoves of a sub's galley, nor does it interfere with the chemicals which purify the air. The men aboard the underseas vessels so equipped can even smoke.
Glass with non-reflecting surfaces, developed for military uses by American Optical and RCA, can be applied, with desirable results, to post-war manufacture of many useful items. Among the new products are windshields sans dangerous reflections, less conspicuous spectacle lenses, more easily read instruments, faster camera lenses, shop windows free from reflections, more efficient microscopes and other lighttransmitting instruments.