Word: fainted
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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...
...promising new method uses an "electronic screen intensifier" developed at Johns Hopkins by Dr. Russell H. Morgan and Ralph Sturm. Primarily intended for brightening the faint images on X-ray fluoroscope screens, it is based on the image-orthicon tube used in television cameras. The tube scans (in 1,029 "lines" instead of the standard 525) the image and turns it into fluctuations of an electric signal...
...Faint Shadows. In an ordinary TV setup this signal would be far too weak to be turned back into an image on the face of the picture tube, but Morgan and Sturm have learned how to amplify it enormously. They can put their apparatus to work watching a fluoroscope in a darkened room; it can see in light ten times too dim for human eyes. The faint shadows may be barely visible, but when they appear on the picture tube, they are bright enough to be studied in full daylight. This is important for doctors who examine patients by fluoroscope...
...fifth floor of a St. Louis office building, the newest Wellsian brain in the earthly world was enthroned. This quintessential brain looked like nothing more than a collection of filing cases, stretching in a 60-ft. semicircle about the room. From within the grey metal cases came a faint humming sound; along the light-studded metallic face were scores of twinkling orange sparks, rippling like waves of thought. As in the Grand Lunar's palace, a blaze of light flooded over the pale walls and pillars of rosy pink. Air conditioning filtered out the dust, kept the temperature...
...continued observations with a given apparatus for a very long time, what changes would we see?" asks Gold. As billions follow billions of years, the most distant galaxies slip over the edge of the universe as their light becomes too feeble to be observed. Faint nearby galaxies grow brighter as they collect more matter. As the space between them expands, new galaxies are born to glow faintly in the new space...