A processor solution for the second century of powered space flight

2005 ◽  
Author(s):  
J.R. Marshall ◽  
R.W. Berger
Keyword(s):  
Space Flight ◽  
Second Century

The Second Century Papers—Looking Ahead in Aeronautics

1968 ◽  
Vol 72 (685) ◽  
pp. 2-10
Author(s):  
John E. Allen
Keyword(s):  
Nineteenth Century ◽  
Space Flight ◽  
Second Century ◽  
Control Space ◽  
Early Nineteenth Century ◽  
International Conference ◽  
Navigation Control ◽  
Aeronautical Science ◽  
Education And Law

Summary This paper introduces the series of Second Century papers which will appear in the Journal during 1968. The reasons which led the Publications Committee to arrange this series is explained and the authors and the titles of their papers are listed. The papers consider possible changes in aeronautical science, engineering and operations from now until a century ahead on many topics including Propulsion, Aerodynamics, Computing, Navigation, Control, Space Flight, Hovercraft, Aeronautical Education and Law for Aerospace. This paper sets the scene for the others by reviewing how the aeronautical future looked to Cayley in the early nineteenth century, to those attending the 1893 International Conference, to Lanchester, Thurston and Roxbee Cox. The changing nature of forecasting is illustrated by the Lockheed SST market study of 1965 which is given as an example of present-day predictive techniques using computers.

Preliminary Report of a Comparative Study of Seminiferous Tubular Epithelium from Rats Flown on Cosmos 1887 and SL3

1988 ◽  
Vol 46 ◽  
pp. 276-277
Author(s):  
Walter J. Sapp ◽  
D.E. Philpott ◽  
C.S. Williams ◽  
K. Kato ◽  
J. Stevenson ◽  
...  
Keyword(s):  
Space Flight ◽  
Physiological Response ◽  
Preliminary Report ◽  
Complete Recovery ◽  
Environmental Constraints ◽  
Tubular Epithelium ◽  
Testicular Weight ◽  
Testicular Morphology ◽  
Normal Offspring ◽  
Rats And Mice

Space flight, with its unique environmental constraints such as immobilization, decreased and increased pressures, and radiation, is known to affect testicular morphology and spermatogenesis. Selye, summarized the manifestations of physiological response to nonspecific stress and he pointed out that atrophy of the gonads always occurred. Reports of data collected from two dogs flown in space for 22 days (Cosmos 110) indicate that there was an increase of 30 to 70% atypical spermatozoa when compared to ground based controls. Seventy-five days after the flight the abnormalities had decreased to the high normal value of 30% and mating of these dogs after this period produced normal offspring, suggesting complete recovery. Effects of immobilization and increased gravity were investigated by spinning rats and mice at 2x g for 8-9 weeks. A decrease in testicular weight was noted in spun animals when compared to controls. Immobilization has been show to cause arrest of spermatogenesis in Macaca meminstrins.

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