Word: plasticizers
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...most exciting new development in electronics is the transistor, a tiny, simple device that can do the work of most vacuum tubes. Transistors are generally mounted in plastic or metal for easy handling, but the essential works of the smallest models are only one tenth of an inch long and fifteen-thousandths of an inch in diameter, hardly big enough to see without squinting. Last week Dr. A. E. Anderson of Bell Telephone Laboratories told a Manhattan meeting of the American Association of Aeronautical Engineers about the latest transistor progress. The airmen listened intently, because modern aircraft, especially military models...
...Delinquents in the Making," the Gluecks stressed the importance of arresting the development of the potential criminal at an early age while his character and habits are "sufficiently plastic for effective therapeutic intervention...
...Lancet, Dr. Harold Ridley, London surgeon, describes the ingenious new technique for slipping a plastic lens into the eyeball. Only the front part of the lens capsule, with the jelly, is removed; the back part of the capsule is allowed to remain as a sort of frame to keep the artificial lens from drifting farther back into the eyeball. The plastic chosen for the job (Perspex, similar to the Plexiglas used for airplane windshields) is only half as heavy as glass and is not likely to sink...
...these have better than "normal" visual acuity-i.e., they can read letters at 20 feet, where normal calls for 16 feet. Five have normal acuity, and five more can read at 20 feet what normal eyes can read at 30. The other eight taper off to 20/120. The plastic lenses are focused for distant vision (20 feet to infinity); for reading or playing cards, the patients need glasses...
...experience," says Dr. Ridley, "to hear a cataract patient remark at a post-operative dressing, 'I can see the faces of all you gentlemen quite clearly.' " U.S. eye specialists are amazed by the news from London. If the plastic lenses stand up for five years without trouble, they say, it will be the greatest advance in cataract treatment since the invention of eyeglasses...