Word: raye
(lookup in dictionary)
(lookup stats)
Dates: during 1920-1929
Sort By: most recent first
(reverse)
Practical scientists who were able to attend the winter meeting of the American Institute of Electrical Engineers at Manhattan last week edged forward on their seats when rumpled-haired Dr. William David Coolidge began to explain his further experiments with cathode rays. Dr. Coolidge, assistant director of the General Electric Co.'s research laboratories, had just received the Institute's Edison Medal for his "contributions to the incandescent electric lighting and x-ray arts" by his development of ductile tungsten for bulb filaments and x-ray targets. At the same ceremony John Joseph Carty of the American Telephone...
...Cathode Rays. Little more than a generation ago the British physicist Sir William Crookes sealed the ends of two wines in a glass tube and in the tube created a vacuum. Then he shunted a current of electricity into the wires. The current sent a stream of electrons speeding from one of the wires, the cathode. They were cathode rays and they behaved in some ways like radium, soon after to be discovered by the Curies. They made the vacuum tube glow with-brilliant fluorescence. If a piece of metal were sealed in the tube, in the path...
Coolidge Tube. In x-ray tubes the electrons popping from the cathode are imprisoned within the tubes. How to get them outside became a problem for scientists. Philip Lenard, Nobel prizewinner for 1905 and now professor at the University of Heidelberg, solved it by placing a thin aluminum "window," one eighth of an inch in diameter, at one end of a tube. Electrons passed through it, but feebly. He used only 30,000 volts of electricity...
...penetrating gamma rays might be deflected from a metal target, as in simple x-ray tubes, and reveal unknown properties of bodies...
Friends of Mary du Cauray, Duchess of Bedford, recalled that she is a busy expert in the realm of X-ray and electro-physics with little time for champagne christenings. "What are the peculiarities of mountain eagles in flight?" is a question which so intrigues the Duchess of Bedford that she passed a recent holiday above Spain, chasing mountain eagles by airplane...