Word: plastic
(lookup in dictionary)
(lookup stats)
Dates: during 1950-1959
Sort By: most recent first
(reverse)
...Father Cummings lay dying, the U.S. Bureau of Mines, by a coincidence, issued a set of recommendations to reduce the hazard. Wool blankets, plastic sheets and most synthetic fabrics should not be allowed near an anesthesia machine, the bureau said, because of the danger that they will generate static electricity and cause a spark. Cotton should be used instead. Doctors and nurses must not wear wool trousers, nylon gowns, or rubber-soled shoes. Tables, machines and stools should have non-insulating feet, to conduct static electricity to the floor...
Skeleton News. Plastic skulls and skeletons for laboratory use are being turned out by three doctors in Gatesville, Texas. The plastic bones are about the same color and texture as the real thing. Retail price: skulls $60, skeletons...
...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...
...hundreds or even thousands of vacuum tubes, supplying the power is a serious problem. The heat developed by the tubes is even worse. To keep the temperature down, they must be well spaced and cooled by an air stream. Transistors cause no such problems; they can be "potted" in plastic and whole arrays put close together...
Magic Trifle. Bell Laboratory has a two-stage transistor amplifier, complete with resistors and condensers, that is potted in a cylinder of plastic as big as a ¾-inch section cut from a fountain pen. When a faint voice current is fed to this trifle, it gives a signal loud enough to blast the eardrum. Scores of such amplifiers could be packed in a coffee can. One device at Bell has transistors that do the work of 44 vacuum tubes. The whole thing is housed on a panel no bigger than the page of a novel...