Word: instrument
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Dates: during 1930-1939
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Mussolini's Sin No. 2 in the present crisis, his use of war as an instrument of national policy, similarly depends upon the Briand-Kellogg Pact of 1928. From the vantage ground of these two lofty technicalities, Sir Eric Drummond, the Ambassador of Victoria's grandson, was entitled to gaze reproachfully upon Benito Mussolini last week and did in fact so gaze...
...automatic instrument that will broadcast a report of weather conditions direct from the upper air as it hangs from a sounding balloon has been perfected at the University's Meteorological Observatory at Blue Hill...
...investigation of upper air weather conditions which are of importance to both weather forecasting and air transportation have heretofore been accomplished by instruments which were sent up and then read upon their return to the ground. The new instrument, called a radio-meteorological, automatically transmits, every thirty seconds, records of temperature, humidity, and barometric pressire...
Perfection of the instrument which transmits its signals on the ultra-short wavelength of 5 meters, was made possible by a study of high frequency radio transmission and receiving between the weather station on top of Mount Washington and Blue Hill...
Mechanics of the instrument are simple. The whole device weighs, with batteries, about three pounds. It transmits a steady humming signal broken every thirty seconds. A rotating cylinder, run by clockwork, makes electrical contact with Tungsten needles which move as the weather changes. The contact thus made transmits additional signals, which, are recorded on a graph at the receiving point, and from this graph, is reduced the data...