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Show MAKE STUDY OF ATMOSPHERE Kites and Balloons Used to Lift Self-Recording Self-Recording Instruments to Obtain Air Conditions. M. A. Lawrence Roue!., at the Blue Hill observatory, near Boston, in 1S94. was the first 10 employ kites, attached to steel wires, to lift self-recording instruments in-struments and so obtain records of the various conditions in the atmosphere. Since that year they have been used extensively in this country, in Europe, and from the decks of steamships, frequently fre-quently ascending three and four miles into the air. writes Paul Foster In the American Review of Reviews. About the same time the small ballons-sondes, or sounding balloons, were 'perfected ic France, and began to be employed to carry instruments far higher, some reaching the extraordinary height of 15 miles. These discoveries and improved methods of research led to tb.. organization organ-ization of an international commission for scientific aeronautics, under the a' spices of which measurements are made simultaneously at an increasing number of stations throughout the world. Started as a private enterprise, enter-prise, the work is now an international undertaking, and balloonj and kites have been employed monthly for some years at many stations in Europe, and within very recent years at one or two stations in the United States. |