Word: instrumentality
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Dates: during 1940-1949
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...Thermals. The school is in a mountain-surrounded piece of desert, hot enough to fry the traditional egg on a glider's duralumin fuselage. But the heated air rises, forming the welcome "thermals" which keep a glider aloft. The special glider dashboard instrument is a variometer, which shows a pilot whether he is in one of these upward thermals or in a downward air current...
Advanced practice includes an hour of night flying and a little instrument flying. But there can be no practice in what glider pilots dread, even the most experienced -bad weather. For there is no substitute for a motor in escaping a storm. A student's last week of practice is devoted to troop carriers...
...People are asking," said the London Daily Mail, "whether we can win the war with this devastating weapon alone. . . . The war will not be won so long as the German Army is in being. We have to destroy that mighty instrument. It is possible to do it by air action. The Army could be disintegrated by smashing civilian morale, or by destroying supplies at their source...
...stocks of 27 types of musical instruments were frozen last week by WPB, which also banned all further production after June 30. Band instruments now in manufacturers' and wholesalers' hands will be made available only to Army, Navy and Marine bands. Instrument makers will make precision instruments for airplanes; piano makers will turn out gliders, and organ makers will make blowers for Link ground trainers...
Among the many ores which have been sent in to be tested, one discovered in Ontario by Teaching Fellow Willard C. Lacy has been found to be the richest. Investigation of the specimens by means of the spectograph, the wonder-working detecting instrument that is taking the place of chemical analysis, is under the direction of Professor Esper S. Larsen...