Word: graton
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Dates: during 1950-1959
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...century rowing tank, big enough for two people and useless for geological purposes, which was promptly covered over again. Another discovery was a solid 13-inch concrete floor, left over from a departed stamp mill, which turned out to be a perfect base for an experiment by Louis C. Graton, Sturgis Hooper Professor of Geology, who retired last year...
...Graton's idea was to build a light microscope giving far higher magnifications than had been achieved before, and he needed an almost perfectly motionless base on which to stand it. The microscope was built in 1931, with various refinements added since, and is known as the Graton-Dune precision micro-camera. It gives a real magnification of 6,000 to 1. Electron microscopes, developed about the same time, give real magnifications up to 50,000 or 100,000 by using enlargements of negatives. This microscope disproved an old law concerning the limit of magnification of light instruments, and also...
...athletic building for laboratories, and the desire of the geology department to combine under one roof. Metallurgy will be bundled off to Vanserg next year, and Mining Geology will be housed in the Geological Museum, but no 13-inch concrete floor has yet been found for Professor Graton's precision micro-camera...