Word: weightlessness
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...plane's acceleration under the push of its rocket motor because of heavy G-load or because of its deceleration on slamming down into the atmosphere. But when the X-15 is on a ballistic trajectory above the atmosphere, with its engine cut off, the pilot will be weightless. He will then shift to a second stick that will give him better control in space-presumably by directional use of the steam jets. When he gets back to the lower atmosphere and conventional speeds, he will use the third stick, which operates in the conventional...
Stringless Yo-Yo. We were in a weird state whose most experienced explorer is Major Herbert Stallings Jr. of the School of Aviation Medicine at Randolph A.F.B. (Texas). He has racked up a total of about 38 weightless hours. But bad weather and reassignment of planes had ruled out Major Stallings as my guide. Instead, I became the guest of the Tactical Air Command at Langley A.F.B., just inside the Virginia capes. Assigned to the project was Lieut. Colonel Devol ("Rock") Brett, skipper of the 355th Fighter Squadron and son of World War II's Lieut. General George...
...last parabolic curve of the morning, Brett approached Veteran Stallings' record of 43 seconds: he maintained a state of negligible gravity for 40 seconds, of which I would testify that 27 seconds were true zero gravity. As closely as Brett and I could figure, we had floated virtually weightless for seven minutes and in true zero gravity for five. From our two-man, 2½-hour survey, we could obviously not make even tentative assumptions about possibly grave long-term effects (over days, weeks or months) of weightlessness on the human circulatory and respiratory systems. But these suggestions emerged...
...Lieut. Arthur Brattkus, had prepared a mental-alertness test for me during our coffee break. On the back pages of a scratch pad he had written three elementary problems in arithmetic. These represented a mild foretaste of what a space pilot might have to do in the weightless state. Would my gravity-free brain be clear enough to solve them...
Producer Ivan Tors hovered weightlessly just out of camera range; fluttering near by were a director, a movie cameraman and a lighting expert. Tors's pretty secretary, Zale Parry, glided about the group, taking notes on a slate. The movie camera, encased in a weightless "blimp," focused on the desperate struggle of Actor Lloyd Bridges as he grappled with a villain who might have come from Mars...