Word: drill
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...human hearing (about 20,000 cycles per second*) In industry ultrasound waves are used to precipitate carbon and sulphur from chimney exhausts, abating the smoke nuisance and recapturing useful materials, and for testing big metal components such as locomotive axles for flaws. In dentistry there is the ultrasonic drill. In medicine a few enthusiasts have reported good results with ultrasound in arthritis, neuritis, muscle spasm and athletic injuries. It will break up gallstones or kidney stones in an animal's body, and some physicians hope soon to use it for this in human patients...
...summer cottage at Lake Paw Paw, Mich, and taking them home in a peach basket. ("We always wondered what happened to that snake that got away in the Pullman," says his sister.) His second interest was foreign nations. His third interest was organizing the neighborhood kids for military drill, in which he was always the commanding officer...
Despite this denial, Cadet Captain Woodhouse was reported to have told C Battery at ROTC drill that "the Colonel is 'interested' in those individuals who haven't joined...
...backs to sprinkle 5,000,000 parched acres. In Honan, more than a million formed bucket brigades to bring water from the rivers to fields sometimes ten miles away. In Hunan, China's "rice bowl," 600,000 persons labored around the clock. In Shantung, all military units suspended drill and moved to the drought front. Thousands of schoolhouses were shut down, and in Honan alone, 800,000 students and teachers were turned into the fields...
...Crimson emphasized passing in the drill possibly in deference to Navy's great success through the air in its game with Penn last week. The freshmen set Pennsylvania defenses, the junior varsity simulated Quaker offenses, and both the A and B squads worked against each team...