Word: cleaning
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Dates: during 1960-1969
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...period of grace before the impersonal and sleepless computers go to work on the entire country in 1966-and the IRS is using the interim to 156.8 psychological advantage. "As a word to the wise," says Commissioner Caplin, "I would say that this is a very good time to clean the slate if past errors or omissions are known. In fact, if I had a friend with doubts about his personal tax records. I would advise him to drop around to his district office soon and clear them up." Your friendly neighborhood tax collector thinks the odds are about...
...each was consoled with $3,000 in expense money from the national treasury). The Damascus high command promised to rule the country with Nasser socialism, minus Nasser, and agreed to a national plebiscite on the question of reunion with Egypt and an eventual return to what was described as "clean democracy...
...passion for cleanliness. They have to. As weapons components are made smaller and still smaller, the presence of a single particle of dust can make larger and still larger trouble. The strictest housekeeper in all Sandia is Texas-born Physicist Willis J. Whitfield, creator of the Whitfield Ultra-Clean Room. "I thought about dust particles," he says with a slight drawl. "Where are these rascals generated? Where do they go?" Once he answered his own questions Physicist Whitfield decided that conventional industrial clean rooms are wrong in principle...
...usual system in clean rooms, which are necessary for an ever-increasing number of industrial operations, is to keep dust particles from being released. Smoking is forbidden; so are ordinary pencils, which give off graphite particles. People who work in the clean rooms are "packaged" in special boots, hoods and coveralls and are vacuum-cleaned before they enter. The rooms themselves are vacuumed continually. But despite all these precautions, each cubic foot of their air still contains at least 1,000,000 dust particles that are .3 microns (.000012 in.) or larger in diameter. This is a vast improvement over...
...Whitfield Ultra-Clean Room looks like a small metal house trailer without wheels. Its floor is metal grating. It is lined with stainless steel, and along one wall the workbench faces a 4-ft. by 10-ft. bank of "absolute filters" that remove all particles above .3 microns from a slow stream of air. Most clean rooms use their filters simply to clean up incoming air. Whitfield's trick is to make the clean air from the filters keep the room clean. It flows at 1 m.p.h. (a very faint breeze) across the workbench and past the people working...