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... dust seeming to concentrate at 50 to 75 mi. It was suggested that the lower layer might be re­lated to the noctilucent clouds, since last year's rocket launchings from ... clouds found at that altitude could be ice-covered particles of meteoritic dust. The higher layer might be at the level where meteors break into dust on entry into the earth ...

... AFB , Ohio, was studying the concept of surrounding the spacecraft with a 40-in. ­thick layer of metallic dust held in place by an electrostatic field. A meteoroid hitting the vibrating dust layer would be shattered or vaporized. ''(M&R, 11/25/63, 29)'' Military role in the ...

... -tunnel results available at the time. These results indicated a stabilizing effect on the boundary layer at hypersonic speeds for low ratios of the surface temperature to the stagnation temperature. As ... been found that at the lower altitudes, where the heating rates are highest, the boundary layer is largely turbulent, due primarily to the surface irregularities. Regions of laminar flow generally are ...

... blamed for disruption of long-distance radio communications. The layer of strong winds occurred at 50-mi. altitude, where shearing disturbed the ionospheric layers which in turn disrupted radio communications, he said ...

... -lb suits were 22 lb heavier but more flexible, consisting of inner layer of cotton un­derwear and cover layer of Beta cloth, nylon, and aluminized Kapton to protect against micrometeoroids and ...

... . Unlike Zond V, which had plunged directly through upper atmosphere, Zond VI skipped across outer layers of atmosphere to reduce its reentry speed and then resumed its descent with aerody­namic ... through the onboard control system in such a way that it, passing through the dense layers of the atmosphere, left them and next continued along the ballistic trajectory until the second ...

... radiation belts, radiation arriving from deep space, and the physical conditions in the upper atmospheric layers. ELECTRON III was orbiting at 7,040-km. (4,375-mi.) apogee, 405-km. (252 ... largest and most advanced research rocket, on a flight to collect data on the upper layer of the atmosphere. The rocket attained an altitude of 600 mi. in the 17-min ...

... surface, this indicates that there is not a deep layer of dust in this area. There would be expected to be a layer of dust on the lunar surface . . . there has been ...

... , Haugland, Balt. Sun, 2/1/65)'' Tass had reported that Soviet astronomers believed the upper layer of the moon's surface was saturated with meteoric matter distinguished chemically and in mineral content from deeper layers. "Highly accurate and reliable" observation had been made by a Gorky University team headed by ...

... miniature hermetic cabin which consists of a metal helmet with a transparent visor, a multi-layer hermetic suit, gloves, and specially designed footwear. The spacesuit has its own power circuitry feeding ... protect man in space from ... heat . . . and cold . . ., the spacesuit is covered by thermal insulation layer and coated with a light color that deflects heat rays , , In these spacesuits of the ...

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