Word: vapor
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...leading scientist, to convert Table Mountain's famed "cloth," a perpetually present blanket of very moist cloud, into water by means of electricity. Preliminary tests have convinced Dr. Schumann that dry Capetown can extract 31,000,000 gallons of water a day from this ever-present vapor...
...went to 40-year-old Robert Gwathmey, art teacher at Manhattan's Cooper Union, for a postery agricultural study called Hoeing. Third prize of $500 went to 28-year-old John Rogers Cox for White Cloud, a stylized, theatrically lighted farm scene under a lone, spectacular cumulus vapor...
...which is fired from a .50-caliber machine gun, is that it can blow up an enemy aircraft's self-sealing gasoline tank. Earlier in the war the self-sealing tank was good insurance against old-style tracer bullets. By preventing leakage of fuel and formation of explosive vapor, the tank nullified the tracer. But the new bullet explodes in the pierced fuel tank, starts a chemical fire of intense heat and spreads a sheet of flame several feet in diameter...
What Are They? Scientists know surprisingly little about clouds, which were not even named or classified until 1803 (by an English druggist named Luke Howard). They know how clouds and fogs (clouds on the ground) are formed-by the cooling of humid air, which condenses water vapor on particles of dust, pollen or soot in the air. They also know what a cloud or fog is made of-water droplets (or ice crystals) so small that an 1,800-cu. ft. block of dense fog contains only one-seventh of a glass of water. But many questions, such as what...
...packaging, bags of silica gel are enclosed with the packed object in a vapor-proof wrapping like Pliofilm or reinforced Cellophane. To show whether the air inside is keeping dry enough, the silica gel is impregnated with cobalt chloride, which turns pink if humidity rises above 30%-the point at which metal begins to rust. After unwrapping, silica gel can be dried and used again...