Word: apollo
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Dates: during 1960-1969
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...dream of weather control emerged with man from the cave, but for most of humanity's existence it has remained only a dream. Primitive man made sacrifices to the elements, often in human blood, and the Greeks made gods of weather's components: Typhon, Zephyros, Apollo. Beginning with the Greek Philosopher Eratosthenes (276-194 B.C.), who correctly surmised that climate was generated by solar radiation, there have been thousands of efforts at influencing weather. Now that man is approaching the stage at which some control is possible, the question is not just how he can exert his influence...
Liquid hydrogen is the most effective rocket fuel ever developed. Some 40% more powerful than the kerosene fuel used in the Saturn booster, it will place the Apollo spacecraft in earth orbit, then be used again in the same flight to hurl the spaceship toward the moon. The trouble is, its virtues are not bought cheaply. Its extreme volatility and the - 423° F. temperature necessary to keep it in liquid form make it difficult to deal with both on the ground and in space. NASA spacemen had theorized that once weightless in orbit, liquid hydrogen would scatter around...
...Question. Under such conditions, how could an engine in orbit be restarted for a flight to the moon? Engineers speculated that if an Apollo vehicle were accelerated slightly, the inertia of the liquid hydrogen would force it toward the bottom of the tank. To provide that acceleration, they installed controllable, backward-pointing vents at the top of the SIV B's fuel tanks. They hoped that the gases gradually produced by the evaporating liquid fuel and oxidizer could be released into space to provide slight thrust and acceleration...
...ethic of that ancient oath "by Apollo the Physician" is one that all doctors have sworn to and still swear by. Do they live up to it? Not always, is the grim conclusion of Harvard's Dr. Henry K. Beecher after a ten-year study of medical experiments recently performed on human subjects. Dr. Beecher has no quarrel with the physician who tries a new drug or a new operation for the benefit of a patient; he is concerned about experiments that are designed for the ultimate good of society in general but may well do harm...
...lunar terrain. At a Washington press conference, they announced that the moon's surface pre sented no great obstacles to a manned lunar landing; its consistency is almost earthlike, and its bearing strength -about 5 Ibs. per sq. in.-is more than enough to support the weight of Apollo's Lunar Excursion Module. "In one sentence," said JPL Project Scientist Leonard Jaffe, "the moon surface looks like a soil, not very hard, with rocks and clods...