. The inventions : researches and writing of Nikola Tesla, with special reference to his work in polyphase currents and high potential lighting . in the globe f> at a certain degrei of incandescence,than that in the ijlobe n. This is (bu- to the coiitinenuiit (»f the HIGH FREQUENCY AND HIGH POTENTIAL CURRENTS ?,61 movable particles around the button. In this case it is also ascer-tained, that tlie filament in the small globe h is less deterioratedwhen maintained a certain length of time at incandescence. Thisis a necessary consequence of the fact that the gas in the smallbulb becomes strong
. The inventions : researches and writing of Nikola Tesla, with special reference to his work in polyphase currents and high potential lighting . in the globe f> at a certain degrei of incandescence,than that in the ijlobe n. This is (bu- to the coiitinenuiit (»f the HIGH FREQUENCY AND HIGH POTENTIAL CURRENTS ?,61 movable particles around the button. In this case it is also ascer-tained, that tlie filament in the small globe h is less deterioratedwhen maintained a certain length of time at incandescence. Thisis a necessary consequence of the fact that the gas in the smallbulb becomes strongly heated and therefore a very good con-ductor, and less work is tlien performed on the button, since thebombardment becomes less intense as the conductivity of the gasincreases. In this construction, of course, the small bulb becomesvery hot and when it i-eaches an elevated temperature the con-vection and radiation on the outside increase. On another oc-casion I have sliown bulbs in which this drawback was largelyavoided. In these instances a very small bulb, containing a re-fractory button, was mounted in a large globe and the space be-.
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Keywords: ., bookcentury1800, bookdecade1890, bookidinventionsre, bookyear1894
