Word: mosaic
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Dates: during 1950-1959
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...Springfield and Chicago, as the state budgetary commission began a thorough investigation of the state auditor's office, two grand juries, G-men, Internal Revenue men and representatives of half a dozen other county, state and federal agencies were interrogating witnesses, sifting evidence, and painstakingly piecing together a mosaic of one of the biggest financial scandals in Illinois history...
...unavailable for discussion of the decision. But old rival and fellow Communist, David Siqueiros, was glad to oblige: "When Diego started painting this mural, I told him that polystyrene, like any other paint, was not going to resist water for even two years. I advised Rivera to use mosaic, but Diego paid no attention to me." The real blame, of course, could be traced to the capitalist paintmakers who have refused to develop a truly waterproof paint. Said Siqueiros: "The truth is that the capitalist world has not done anything to solve this important problem...
Degraded Virus. The two researchers worked with the simple and well-known virus that causes mosaic disease in tobacco plants and is called TMV for short. Its particles are rod-shaped, and are known to consist of central cores of nucleic acid with protein molecules strung around them. Drs. Fraenkel-Conrat and Williams prepared pure solutions of the submicroscopic rods, mixed them with dilute alkaline chemicals and held them close to the freezing point for two to three days. This treatment "degraded" some of the virus, separating the rods into nucleic acid and protein molecules. Undegraded rods were taken...
...held it just above freezing point for 24 hours. At the end of this period, the protein molecules had rearranged themselves on the nucleic acid cores. When tested on tobacco plants, the virus proved infectious. It grew and multiplied in the green leaves, producing the characteristic spots of tobacco mosaic disease...
...never lets out of his keeping. It includes his soil-test figures (he can get free tests done either by the Tennessee state laboratories or by a fertilizer company that offers the service), a chart of his program for terracing and contouring and planting, and an aerial photo-mosaic with contour and field lines superimposed. So far, Joe has put in 4,000 ft. of terraces and drainage ditches, converted about 90 acres from thicket to permanent pasture...