Word: ray
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Dates: during 1890-1899
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...Harvard Library has recently received a very valuable addition in the private library of Edward Ray Thompson of Troy, N. Y., who stipulated in his will that his books should either be sold at auction or be given to some institution of learning. The executors chose the latter course and gave the library to Harvard...
...Holland Ray. Photography as a Fine...
...experimenting with his powerful new battery at the Jefferson Laboratory, Professor Trowbridge has recently made a discovery of great interest to doctors and the public in general. In previous experiments with the X-ray, the back of the hand has been placed near the tube, with the result that the skin has been burned off in a painful and dangerous manner. Professor Trowbridge has discovered that the same result is produced by brush discharges in the air. This shows that the burn is due to powerful electrification, and not necessarily to the X-rays...
...found that if you inclose a straight wire in a glass tube and exhaust the air within, and then send a discharge of high electromotive force through the wire, the whole space of the tube will be brilliantly luminous. It looks as if the effect of the x-rays were produced from every point of the wire although it was formerly supposed that a discharge was necessary to produce this effect. The new ray, however, could probably not be used for the same purposes in taking photographs...
...past two years, Professor Trowbridge, director of the Jefferson Physical Laboratory, has been perfecting a battery for electrical discharges. It is now the most powerful apparatus of its kind in the world, and has already been used in several investigations of the x-ray. It is the only battery strong enough to send a discharge through an x-ray tube; all other batteries send the spark around the tube. It has been used repeatedly to show the skeleton of the hand. An idea of its power can be had from the fact that it has a voltage...