Word: vacuums
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Dates: during 1960-1969
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...support friendly governments? "You can't," he answered. "And why should you?" Friendly governments, he said, should be helped to become strong enough to defend themselves. Any unilateral U.S. ban on arms sales, the Shah insisted, would only weaken U.S. influence among its friends and create a vacuum that will be filled by Russia...
...effect, the modifications have made Apollo a brand new spacecraft that will have to be tested for structural integrity, vibration characteristics during liftoff, and behavior in a vacuum before it can be requalified for flight. Such testing has pushed the initial launch date for the Apollo series to early summer of next year. But this winter the spacecraft will face its baptism by fire in Houston, when NASA engineers try to set a full-scale Apollo ablaze under varied atmospheric conditions...
...monsters" and "demons" by the Red Guards, and barely a hundred have since been cleared. Without supervision, classrooms are often split into feuding student factions. "No one is in charge; no one dares to be," wrote one Shanghai student recently to a friend in Hong Kong. To fill the vacuum, army officers have been called in to give military instruction and keep a semblance of order...
Lethal Leak. Any vacuum tube operating at several thousand volts or more produces detectable X rays. Boiling off the incandescent cathode of the tube, electrons are attracted and accelerated by the high positive voltage on the tube's anode and smash into it at great speed. Struck by the electrons, the atoms of the metallic anode vibrate violently and emit energy in the form of X rays, which can burn the skin, injure the eyes and cause genetic damage...
...World) sang the praises of violence and provided numerous labor saints and martyrs. The great gangs that appeared in Chicago, New York and elsewhere in the 1920s were also social symptoms: not merely the fiefdoms of "little Caesars" bent on money and power, but the expression of a moral vacuum...