Word: pilings
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Dates: during 1940-1949
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...varsity rehashed its Navy game, allowing Georgetown to pile up a 31 to 18 lead by the half, and failing to make a second period drive pay off. The Hoyas put two tell men on John Rockwell and Ed Smith, who have been doing most of the scoring for the varsity, and forced it to shoot from outside...
When natural uranium is put in a chain-reacting pile, its U-235 atoms start splitting and yielding energy, "fission products" and free neutrons. Some of the neutrons are needed to split more U-235 atoms and keep the reaction going. Others are absorbed by impurities or escape from the pile. The rest enter the atoms of U-238, ultimately turn them into plutonium...
...breeders, or converters, will lessen the waste, presumably by causing more neutrons to be absorbed byU-238. If the amount of plutonium or other nuclear fuel thus produced is larger than the U-235 consumed, the pile could continue in operation for a very long time. First the original U-235 would be consumed, yielding energy and plutonium made out of 11-238. Then some of the plutonium would fission, yielding energy and creating more atomic fuel. Theoretically, the process might continue until all the 11-238 is consumed. Natural uranium could yield something like 140 times as much energy...
Post office officials in Cambridge suggested that students from the East hand in home addresses so that mail and packages can be forwarded lest it pile up here during the Christmas vacation...
After the plutonium has been formed in the pile's uranium rods, it must be separated from the uranium by a chemical operation which is delicate and difficult, because the rods are fiercely radioactive. All the manipulations in the refining process must be performed by remote control from behind massive shields. Every bit of apparatus that has been used in refining plutonium is poisoned and dangerous to handle...