Word: micronics
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Dates: during 1960-1969
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Most artificial smokes, Miss Raskin explained, are made of fairly heavy materials such as phosphorus pentoxide or petroleum oils. Even if their particles are only one micron (one twenty-five thousandth of an inch) in diameter, they fall through air at about eight inches per hour, which she considers too fast. Backed by the Air Force, Miss Raskin discovered a way to fluff various kinds of plastic into spherical particles that are mostly empty cells and almost as light as air. Miss Raskin's particles can be colored, and they fall 1,250 times slower than solid smoke particles...