Technikatörténeti szemle 8. (1975-76)

TANULMÁNYOK - Vajda P.–White, J. A.: Bay Zoltán úttörő Hold-radar kísérletének harmincadik évfordulója és a korszerű radar csillagászat

IRODALOM 1. J.Mofensen, Electronics, 19, 92, April, 1946. 2. J.H. DeWitt, and E.K. Stodola, Proc. ERE, 37, 229, 1949. 3. Z. Bay, Hungarica Acta Physica, 1, 1, 1946. 4. Bernard Lovell and J.A. Clegg, Radio Astronomy, Chapman & Hall Ltd. London, 1952. p. 216. 5. J.L. Pawsey and R.N. Bracewell, Radio Astronomy, Oxford at the Clarendon Press, 1955. Chap. EX. 6. R. Hanbury Brown, and A.C.B. Lovell, The Exploration of Space by Radio London, Chapman & Hall Ltd, 1957. p. 180. 7. R.D. Davies and H.P. Palmer, Radio Studies of the Universe, D. Van Nostrand Co. Inc. Princeton, New York, 1959. p. 155. 8. J.H. Trexler, Proc. IRE, 46, 286, 1958. 9. B.S. Yaplee, R.H. Bruton, K.J. Craig, and N.G. Roman, Proc. ERE, 46, 293, 1958. 10. F.J. Kerr in Encyclopedia of Physics, Edited by S. Fliigge, Springer-Verlag, Vol. LII, Sect. 4, p. 452, 1959. 11. J.L. Steinberg et J. Lequeux, Radloastronomie, Dunod, Paris, p. 189, 1960. 12. V.R. Eschleman and A.M. Peterson, Radar Astronomy, Scientific American, 203

, No.2, p. 50, Aug. 1960. 13. Z. Kopal, Physics and Astronomy of the Moon, Chapter 12 by J.V. Evans, pp. 429, 447, Academic Press, New York and London, 1962. 14. A.G. Smith and T.D. Carr, Radio Exploration of the Planetary System, D.Van Nostrand Co. Inc. Princeton, and New York, pp. 110, 111, 123, 1964. 15. Robert C. Cowen, Radar,, The Christian Science Monitor, Second Section, June 16, 1967. 16. Z. Kopal, Man and His Universe, William Morrow and Co. Inc. New York, 1972. p. 201. 17. R. Price, P.E. Green, T.J. Goblick, R.H. Kingston, L.G. Kraft, G.H. Pettengill, R. Silver, and W.B. Shmith, Science, 129, 751, 1959. 18. P.E. Green and G.H. Pettengill, Sky and Telescope, Vol. XX, No. 2, p. 3, July, 1960. 19. Radar Astronomy, Edited by J.V. Evans and T. Hagfors, McGraw-Hill Book Co., New York, St. Louis, San Francisco, Toronto, London, Sydney, 1968. pp. 392, 397. 30TH ANNIVERSARY OF ZOLTAN BAY' S PIONEER LUNAR RADAR INVESTIGATIONS AND MODERN RADAR ASTRONOMY The first radar contacts with an extraterrestrial, celestial, body were achieved 30 years ago in 1946. J.H.De Witt of the U.S.Army Signal Corps (Belmar, New Jersey) reported the detection of lunar radar echoes on January 10th, 1946. Performing entirely independent experiments in Hungary, Z.Bay announced the observation of radar echoes from the moon on February 6th, 1946.