| Show Fingerprinted Beam Will Probe 1 Mysteries on ugh High New Scientific Marvel to Transcend Strato A WASHINGTON A new method of discovering what exists exists exists ex ex- in the unexplored upper air beyond the reach of balloons some 20 to 50 miles milet above the earth has been developed by three Washington physicists connected with the Carnegie Institutions Institution's Institutions Institution's department of ot terrestrial magnetism and the United States Department of Agricultures Agriculture's bureau of chemistry and soils Searchlights will l be used to shoot light Into the the night sky light that thatis is ted by being Interrupted interrupted interrupted inter Inter- at a given frequency using a light chopper so 10 that when It ItIs ItIs itle Is le scattered by the upper air and picked up by large mirrors It can be recognized by tuning the observing observe observing ling ing Instruments From what happens to the light In the upper airs air's greatest unknown region will come the answer to some questions that science I Is eagerly eagerly ea gerly asking Will Probe Unfamiliar Strata How the thinning airs air's density v varies rles with height some 30 miles above the stratosphere here In the regions regions regions re re- gions known as the ozonosphere and the will become become become be be- come known This Is la Important basic Information now lacking The research team hat has tak talc taken en the first steps toward conquest of the tho region between where the stratosphere leaves lea oft off and the aurora begins to be born consists of Dr I M. A. A Tuve and Dr E. E A. A Johnson of the Carnegie Institution of Washington and Dr Oliver It R. Wulf of the United States Department Depart ment meat of Agriculture So far tests have been confined to an artificial light In the laboratory laboratory laboratory labora tory but field tests are being organized organized or probably with the aid of large army type searchlights of great brilliance Just one large searchlight Is III expected to furnish enough light for the experiment Expect Other Solutions Once the delicate Instruments are put Into use analyzing the scattered fingerprinted light gathered by the mirror the scientists expect to solve other numerous problems connected with water vapor turbulence turbulence lence winds and dust as well as the chemical state of the rarefied atmosphere that allows It to shine aline with fluorescent light at times Umes In no other way can science adequately adequately ade ade- probe the region 20 to 50 ro romiles miles above the earth Man carry I lag ing g balloons' balloons highest up Is the 14 miles of the recent stratosphere flight At about CO GO miles above the earth there them Is la found the base hale of the displays and the first of the Ionized or electrified layers that reflect radio waves The region region re re- gion between stratosphere and the which begins at about CO 00 miles can be probed with no means so far suggested except the modulated Tuve Johnson Wulf Johnson Wulf light |