Zobrazeno 1 - 10
of 29
pro vyhledávání: '"L. D. Jaffe"'
Autor:
E. O. Bulkley, L. D. Jaffe
Publikováno v:
The Moon. 16:71-114
An analysis has been made of the tendency of large lunar craters to lie along circles. A catalog of the craters at least 50 km in diameter was prepared first, noting position, diameter, rim sharpness and completion, nature of underlying surface, and
Publikováno v:
A S L E Transactions. 6:161-177
The coefficient of sliding friction for a number of materials was measured during the flight of Ranger 1 spacecraft. Flat disks of materials of interest were rotated at a speed of 8–14 inches per minute while in contact with 1/8-inch diameter hemis
Publikováno v:
AIAA Journal. 2:93-98
The static bearing capacity of a granular material consisting of dry, crushed olivine basalt was determined in air and in a 10^(-6) mm Hg vacuum by means of cylindrical probes with a range of diameters. Samples with various particle size distribution
Autor:
Eugene M. Shoemaker, L. D. Jaffe, Ronald F. Scott, S. A. Batterson, Donald E. Gault, R. H. Norton, George H. Sutton, A. L. Turkevich, Duane O. Muhleman, C.O. Alley, E. M. Christensen, R. H. Steinbacher, S. E. Dwornik, J. W. Lucas
Publikováno v:
Icarus. 12:156-160
The successful soft landings made by five Surveyors permitted detailed examinations of the lunar surface at four mare sites along an equatorial belt and at one highland site in the southern hemisphere. The aiming areas, selected before launch, were c
Autor:
L. D. Jaffe, R. H. Steinbacher
Publikováno v:
Journal of Geophysical Research. 74:6702-6705
The spacecraft Surveyor 7 landed on the outer rim of the crater Tycho on January 10, 1968. The landing area was selected to provide contrast with the mare sites of previous Surveyor landings. The surface at this highland site, associated with a major
Publikováno v:
The Moon. 5:348-367
The most significant findings about the Moon obtained by spacecraft so far, have resulted from measurements of gravity, electromagnetic properties, seismicity, mechanical properties, geologic features, composition, ages, and the lunar environment. A
Autor:
R. H. Steinbacher, L. D. Jaffe
Publikováno v:
Journal of Geophysical Research. 73:7161-7164
Surveyor 5 landed in Mare Tranquillitatis. The spacecraft and its operation are briefly described in this paper. An α-particle backscattering instrument abroad Surveyor 5 provided the first on-surface measurements of the elemental composition of the
Autor:
L. D. Jaffe
Publikováno v:
Journal of Geophysical Research. 73:5297-5300
The spacecraft Surveyor 6 landed near a mare ridge in Sinus Medii November 7, 1967. It carried an alpha-particle backscattering instrument and a television camera. Data were obtained on the following properties of the lunar surface: topography, chemi
Publikováno v:
AIAA Journal. 1:1402-1407
Autor:
H. E. Benson, Ronald F. Scott, L. D. Jaffe, R. Choate, R. E. Hutton, R. L. Spencer, George H. Sutton, E. M. Christensen, F. B. Sperling, R. H. Jones, H. Y. Ko, S. A. Batterson, F. N. Schmidt
Publikováno v:
Science. 158:637-640
The mechanical properties of the lunar soil at the Surveyor V landing site seem to be generally consistent with values determined for soils at the landing sites of Surveyor I and III. These three maria sites are hundreds of kilometers apart. However,