Word: photographs
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Dates: during 1950-1959
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Great telescopes such as the 200-incher on Palomar Mountain were designed for gathering faint starlight from a wide area and concentrating it in an image bright enough to make a photograph in a practical length of time. The limit of this method has probably been reached; big telescopes are wickedly expensive and hard to build. So forward-looking astronomers are now looking for other ways to brighten a telescopic image...
...does not store an image and the brain does not act fast enough to remember it accurately. This is why astronomers do not agree about the famous Martian canals. Some have seen them; some have not, even in years of trying. No one has ever taken a photograph of them...
...bordered expose is accompanied by a photograph of the results of a poll given to the wives of 365 Harvard graduates of the Class of 1929 during their 25th reunion ceremonies last June. In contradiction to the author's conclusions, 31 percent of the wives said "yes" to the question, "Do you consider your husband completely satisfactory as a lover...
...fine yellow dust that forms the clouds of Venus is carried high. Where the currents move downward, the dust deck is lower, and above it lies a greater thickness of carbon dioxide. The CO2 reflects violet light better than the dust does, and this makes the down-current zones photograph brighter than the others. In light of longer wave length, the bands are invisible...
...found a small snapshot showing him as a World War II pilot: the face was clearly recognizable and small enough to be well within his tunneled view. But J.S. could not identify himself. Said one doctor: "He seemed to have no visual image of himself to compare with the photograph...