Word: icing
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Dates: during 1960-1969
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After 15 minutes of the first period, B.U. wing Dave MacLeod opened the scoring when he picked up a loose puck near his own blue line, got a jump on the Crimson defense, and raced down the ice to fire an unassisted goal past Bland. MacLeod added another score in the second period, which, together with Mike Denihan's goal, on a pass from Bill Quinn, put the Terriers ahead...
Dartmouth's only bright moment after the opening of the game came when over-lapping third-period penalties gave the Indians a two-man advantage on the Crimson for almost a minute. The Big Green put a fresh team on the ice and mounted a convincing attack for about 20 seconds, until a Dartmouth shot bounced off Dave Johnston's shin pad into center ice. Before the Indians could overhaul him, Johnston raced into the Dartmouth zone and fired a shot that missed by inches...
...Mason of London's Imperial College of Science and Technology tells of experiments made to determine why some clouds give rain while others float high in the air until they evaporate. When he carefully cooled small droplets of very pure water, they did not turn to ice until the temperature fell below - 42° F. This proved, as had been suspected, that ice crystals seldom, if ever, form in moderately cold clouds unless some solid nucleus is present to start the process...
Trained Dust. In further experiments, Mason showed that some kinds of common natural dust can be "trained" to collect ice. Particles of kaolinite (common in clays) do not act as ice-forming nuclei above 16° F., which is colder than the tops of many clouds. But when kaolinite particles have once had ice crystals on them, and when this ice has evaporated, they are able to form fresh crystals in clouds no colder than...
Mason suspects that kaolinite and other "trainable" particles are carried up to 35,000 ft., where the temperature often falls to -60° F. There they gather a little ice, forming thin, veil-like cirrus clouds. When they fall through dry air, most of the ice evaporates, but tiny bits remain trapped in crevices. When these ice-seeded particles get mixed with a moderately cold cloud, they make it yield snow or rain. Mason argues that much of the earth's precipitation is wrung out of clouds by just such "trainable" earth-dust particles. Kaolinite and other kinds...