Word: orbited
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Dates: during 1950-1959
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...Curtain. But that did not mean it was a flop. Previous Communist propaganda maneuvers -the disarmament campaign of 1946, the warmonger cry of 1947, the phony Stockholm Peace Appeal of 1949-had at least a semblance of plausibility, and were designed to arouse and divide nations outside the Communist orbit...
...Made Moon. The official subject of the congress was the "earth-satellite vehicle," generally regarded as the first step toward true space navigation. A small man-made moon, revolving on a circular orbit high above the earth's atmosphere, would be a handy spot from which to start a space voyage. Because the satellite would already be supported against the earth's gravitational pull by the centrifugal force of its rapid motion, only moderate power would be needed to launch the spaceship from it. Since there would be no atmosphere, the spaceship would not even have...
...full-dress flight to Mars. It could be done, he wrote, by using two satellite stations as intermediate refueling and supply bases. The first satellite station would revolve around the earth and form the starting point for the interplanetary voyaging. The second would be established in an orbit around Mars. Then specially designed "landing boats" would descend into the thin Martian atmosphere to explore the planet's surface...
...effort. Forty-six three-stage rocket ships, weighing 6,400 tons each* at takeoff, would have to make 950 trips above the earth's atmosphere, carrying cargo (39.4 tons of pay load per trip) and fuel to build and stock the satellite filling station. On this base, ten orbit-to-orbit spaceships would be assembled. Taking off for Mars, they would establish a second filling station in an orbit around that planet. Enough fuel and supplies would remain to set 50 men down on Mars in three landing craft and maintain them there for a year. Then...
...human frame stand the painful acceleration (at least three times the pull of gravity for the first 9½ minutes) needed to propel a rocket into a permanent orbit around the earth? Perhaps, say the scientists-if the cabin is properly air-conditioned, if the passengers' heads are clamped into position to prevent a neck-snapping jolt during takeoff, if some kind of magnetic suits are provided to hold them to the floor when the familiar pull of gravity fades away. Could the weightless pilot, whipping through space at seven miles a second, depend on his sense of vision...