Word: lensed
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Dates: during 1940-1949
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Interest was aroused, however, and individual as well as society financial support finally warranted purchase of a refractor with a 15-inch aperture. The lens arrived at Cambridge in December, 1846, was erected in a 30-feet dome, and thus the College Observatory was born. Obsolete as this ancient refractor...
With Clementine, Director Ford has accomplished more than an intelligent retelling of a hoary yarn. His camera sometimes pauses, with a fresh, childlike curiosity, to examine the shape and texture of a face, a pair of square-dancing feet, a scrap of desert landscape or a sunlit dusty road. The...
Luckily, many stars are eclipsed by the moon. When this happens, the star does not vanish instantaneously. Instead, it makes the moon cast, for one-fiftieth of a second, a ribbed shadow of bright-and-dark "diffraction bands." By measuring these, the star's disc can be measured. But...
This is the correct version as quoted to me by its author, [the late] Professor A. H. Reginald Buller, F.R.S., etc., etc., onetime professor of botany at the University of Manitoba. . . . This world authority on fungi found enough time . . . to write many such light verses, some of which were inspired...
The electrons are concentrated on a second screen, at the rear end of the tube, forming an "electron image." This-screen is covered with a substance which glows green when hit by electrons. So a visible copy of the invisible infra-red image appears on it. When the sniper looks...