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OPTICAL RESEARCH LABORATORY HARVARD UNIVERSITY, REPORT ON QUANTITATIVE STUDIES AND OBSERVATIONS OF FACTORS LIMITING RESOLUTION OF AERIAL PHOTOGRAPHS. PART III - APPENDIX.
Office of Scientific Research and Development, National Defense Research Committee., 1945. ... [649pp]... Bound in stiff cardstock, cloth spine... THIS IS A DECLASSIFIED GOVERNMENT REPORT... This is the original copy from the Office of Scientific Research, No. 117... Section 16.1, Report No. 131, O.S.R.D., Report No. 6029, Restricted (Designated as unrestricted)... "This document contains information affecting the national defense of the United States within the meaning of the Espionage Act, U.S.C. 50; 31 and 32."... Contains over 60 FOLDING GRAPHS... Contents include Roll and Pitch Amplitude Curves; An Idealized Solution of the Effects of Roll, Pitch, and Yaw Motions at the Focal Plane of a Camera Passing Over a Line of Flashing Lamps; & List of Photographic Equipment and Illustrations of Cameras and Mounts... "Dunham was Scientific Director of the Fund for Astrophysical Research from its founding in 1936 until his death in 1984. He was a staff member of Mount Wilson Observatory from 1928 to 1947. During WWII from 1942 to 1946, he was Chief of the Optical Instrument Section (16.1) of the Office of Scientific Research and Development. In 1932, while on the staff of the Mount Wilson Observatory, Pasadena, California, Dr. Dunham discovered that the atmosphere of Venus is principally composed of carbon dioxide. At that time, astronomers tended to believe that Earth and Venus had similar atmospheres, but Dr. Dunham (with Walter S. Adams) found some unusual features in the spectrum of radiation from Venus. Dr. Dunham demonstrated that if light were sent through a long pipe containing compressed carbon dioxide, the same spectrum could be reproduced on Earth, indicating that carbon dioxide, under higher pressure than the Earth's atmosphere, had been observed in the atmosphere of Venus. This conclusion was dramatically confirmed 35 years later in measurements transmitted from U. S. and Soviet spacecraft. " . Soft Cover. Very Good. 4to - over 9¾" - 12" tall.
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