Word: vapor
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Dates: during 1940-1949
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...Moscow it was the anniversary of Lenin's death. The city smoked with the cold. From the frozen Moscow River, from the Kremlin, and the Cathedral of St. Basil, a vapor rose, clouding the skies and befogging the stars. It was 50 degrees below zero. To Correspondent Eve Curie, a little old woman in a tattered shawl said: "This is a real Russian winter. A winter to freeze Russia's enemies. A winter to freeze Hitler...
...increase the percentage of isooctane (and similar compounds). Isooctane is a hydrocarbon, C8H18, which is one of the hundreds of compounds which make up the chemical mixture called gasoline. But isooctane alone makes a poor fuel because it is not volatile enough, does not readily carburet into explodible vapor...
Towards the latter part of the war, as Major Conant, he supervised more than 100 chemists in a secret experiment on poison vapor, during which he and his staff were closely guarded and virtually held prisoner...
With whimsical and bogus tenderness, U. S. newspapers last week kissed their old favorite, the Man from Mars, goodby. Reason: Walter Sydney Adams, astute director of Mt. Wilson Observatory in California, said he had observed the Martian atmosphere for water-vapor content, found none or almost none-in any case (allowing for instrumental error) not more than 5% of the moisture in earth's air. In such dryness it seemed most unlikely that active animals could exist. In making his observations, Dr. Adams used "the most delicate spectroscope yet known...
...spectroscope splits light into patterns in which the "signatures" of various elements and compounds can be identified. Light from Mars comes through the earth's air blanket, which contains water vapor, so Dr. Adams had to separate the terrestrial vapor pattern from the Martian (if any). This he did with the help of a phenomenon called the Doppler effect: when a source of light approaches earth, its spectrum lines are shifted to the right, and when it is receding they are shifted to the left. At times when Mars is fast approaching or retreating, the Doppler effect should pull...