Word: bulb
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...largest electric light bulb ever made-22 in. high and 15 in. in diameter-side by side with the smallest, no larger than a grain of rice, was exhibited at the Sprague plant of the General Electric Company, East Orange, N. J. The monster bulb is of 150,000 candlepower and requires four large cables to supply the 30,000 watts it burns. Four long strips of heavily corrugated tungsten steel were used as filaments. The heat generated reached 3,200 degrees Centigrade, melting the glass. A large electric fan was used to cool the air. The inventor, George Bowerman...
...stock market, as is well known, usually acts as a thermometer and barometer to general business conditions. The questions now asked are: Is someone putting a lighted match under the thermometer bulb...
...unfailing market for replacement parts. Phonograph records wear out, and have to be replaced at a fairly rapid and constant rate, and fashions in records change. But the radio machine is singularly constant. It does not wear out. Its parts are singularly constant, too. You have to replace bulbs, but a bulb will last for a year or more. Batteries wear out, but the radio companies have no monopoly on batteries. The companies are confronted by the fact that they have no prospect of a steady income of money from radios over a long period...
...average bulb used is the 25 watt Mazda...
Professor Trowbridge's experiments with the cathode rays at the Jefferson Physical Laboratory have shown that the quality of glass constituting the Crookes tubes has very little to do with the phenomena outside the tubes. A bulb that gives a blue fluorescence will produce as good cathode photographs as one that produces a yellow or green fluorescence. It is practically useless to endeavor to obtain photographs with tubes which are not exhausted to a high degree, perhaps one millionth of an atmosphere. When the anode throws a strong shadow of the cathode on the fluorescent walls of the tube...