Word: js
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Dates: during 1970-1979
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...joint project of the University of Arizona and the Smithsonian Astrophysical Observatory, the extraordinary telescope, unlike other reflectors, does not use a single primary eye on the sky. Instead, it has six main mirrors, ,JS each with a diameter of 1.8 meters (72 in.). Arrayed in a circle and directing their light on a common focus to produce a single image, they gather as much light as a traditional 4.5-meter (176-in.) instrument. Thus, the so-called Multiple-Mirror Telescope is exceeded only by Palomar's 5-meter (200-in.) mirror and the new Soviet 6-meter...
...work on heat transfer, now known as the fourth law of thermodynamics, won him the 1968 Nobel Prize; of a heart attack; in Coral Gables, Fla. Before World War II, Onsager proposed a gaseous diffusion process to produce the rare uranium isotope needed to construct the atomic bomb; it js now the standard method used to manufacture uranium...