Word: waters
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Dates: during 1940-1949
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...Adams and Dunster people, however, offered to buy their won machines, but Vice-President Reynolds poured cold water on the idea. The Adams House Committee persevered, arguing that local laundries would be no more injured by such House competition than they were by the flourishing Radcliffe washers, and that there was a precedent for non-profit coin-machines in the ruling which permitted the House to run coke dispensers...
Problem: how to make a jet engine work under water. Solution: make it use a fuel that burns in water instead...
...waterborne jet works on much the same principle as the airborne ramjet. It consists of a roughly cylindrical chamber with openings at both ends. As the engine moves forward, water comes in the front opening and is mixed with a "water reactive propellant." A "surface tension depressant" (wetting agent) is injected into the water too, presumably to help the fuel mix with the water stream or to help bubbles form...
There are plenty of propellants that burn when brought in contact with water, e.g., metallic potassium, sodium, white phosphorus, various metallic hydrides. Some of these can be used in convenient liquid form. When such fuels hit water, they decompose it violently by uniting with its oxygen, giving off heat and a large volume of hydrogen gas. The combustion chamber is shaped so as to make the expanding water-and-gas mixture shoot out the rear opening as a high-speed jet. The reaction from this drives the engine (and the torpedo) forward...
Propaganda. In Vidette, Ark., half the voters had to wade knee-deep across a water-flooded highway bridge before they reached the polling place to vote on a state bond issue for highway improvement...