Word: blasts
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Dates: during 1970-1979
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...rays, can scorch a piece of wood or set a scrap of paper on fire. Solar radiation can also be concentrated on a much more awesome scale. It can burn a hole through thick steel plate, for example, or simulate the thermal shock of a nuclear blast. It can, that is, with the aid of a super reflector of the sort that has been set up by French scientists high in the Pyrenees. Ten years in the building, the world's largest solar furnace is a complex of nearly 20,000 mirrors and can concentrate enough sunlight to create...
...resistant materials: quartz crystals for radio transmitters, corundum for industrial grinding stones and zircon parts for nuclear reactors. It could also be used in experiments to develop new space-age alloys, such as special tungsten or cobalt steels, and even materials to withstand the searing heat of a nuclear blast...
...Vatican later said that no such thing had happened. "It was an argument between police and demonstrators," a papal spokesman said. "Nobody opposed the Pope." Back in the Vatican, Paul used a routine audience at St. Peter's to blast the press. "They are no longer papers of information but deformation," he said. "They turned our visit upside down." Paul and his advisers were apparently worried that the confrontation at Sant' Elia might set a precedent that would encourage demonstrators to seek free publicity during future papal visits...
Explosive Force. They are counting on help from a high-level review board, chaired by Edgar M. Cortright Jr., director of NASA's Langley Research Center in Hampton, Va. After ordering a schedule of 14-hour work days, Cortright predicted that an explanation for the mysterious blast in Apollo's service module would soon be found-perhaps within three or four weeks. The investigators-including Astronaut Neil Armstrong, the first man on the moon -will be extremely busy. During the six-day voyage, Apollo 13 radioed back more than 7,000,000 feet of taped data...
Cortright's investigators are looking into all conceivable causes of the explosion. But most top NASA officials already think that the blast was probably the result of a defect in one of the two double-walled oxygen tanks. Under the extremes of pressure (920 lbs. per sq. in.) and temperature (-297° F.) inside the tanks, they say, a fragment of metal-perhaps a rivet or a piece from an internal cooling fan-could have flaked off. As this chip sheared away, there may have been a spark or another kind of combustion, Dr. Rocco Petrone, director...