Jun 11 1967
From The Space Library
Recent experiments by USAF scientists had proved that satellites could communicate directly-unaided by relay stations-from opposite sides of earth, AFSC announced. Experiment, in which HF and VHF signals were transmitted between two satellites launched Nov. 3, 1966, confirmed theory that ionosphere resembled a "whispering gallery" in which sound waves traveled along a curved area with only minor volume loss. (AFSC Release 116.67)
US. and Australian scientists would begin extensive survey off coast of western Australia Aug. 8 to test continental drift theory-hypothesis that earth's continents were once part of one or two "supercontinents" that broke apart millions of years ago and have since been constantly drifting in earth's mantle. Survey, which would be conducted as part of a global expedition currently underway by USC&GS Oceanographer, would use echo soundings to determine depths and angles of ocean floor and measure seismic waves produced by underwater explosions in as once joined with Antarctica, by U.S.S.R. in world's largest reflector telescope was nearing completion, Walter Sullivan reported in the New York Times. After cooling from a molten state for 1½ years, mirror had been cut to produce concave, parabolic configurations and was currently undergoing final grinding at a factory near Moscow. It would soon be shipped to a new observatory in the Northern Caucasus which would be operated directly by the Soviet Academy of Sciences. Largest reflector telescope in use at present time was 200 in wide instrument at Mount Palomar Observatory. (Sullivan, NYT, 6/11/67, 15)
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