Word: quartz
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Dates: during 1920-1929
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...meeting of the Harvard Wireless Club tonight, Mr. A. M. Hebert of the American Radio Relay League will discuss the subject of amateur radio while Mr. P. S. Bauer will demonstrate Professor G. P. Pierce's quartz crystal osscilator. The meeting will be in Crufts Laboratory at 7.30 o'clock...
...Lynn works of the General Electric Company, has been produced a substance known as a clear fused quartz, which possesses an astonishing catalog of uses and properties...
...glass. Owing to this property it is expected to be of great value to medicine. By it diseased areas of the throat, nose, ears, stomach, hitherto inaccessible cavities, may be subjected to the action of these germicidal rays, as well as to heat. A sun-room made of fused quartz panes would have the same effect as sunlight in the open air. A quartz lamp will give a healthy sunburn...
...perfect conductor of light. Light from a match or pocket flash at one end of a fused quartz rod 25 feet long passed through the tube without appreciable loss of illumination. Further, the light travels intact through bent and twisted tubes, around corners, no matter how long or devious the way, just as a hose carries water...
...degrees Fahrenheit, increased but 1/50 inch in length. Platinum increases 1/3 inch when subjected to the same heat, and copper 3/5 inch. President S.W. Stratton, of M.I. T., former director of the Bureau of Standards, believes that all standards of length will now be made of fused quartz instead of platinum...