Incandescent electric lights . n acquires a peculiar density andhardness, as was the case with the plati-num wires. To obtain this result thecarbonized filament must be brought intoincandescense while the vacuum is beingmade. The very nature of the substanceof vegetable origin employed in itsfabrication, has been modified. Fibers of bamboo are now used insteadof the paper originally employed. Theseare carbonized by a certain process, andthe successive transformation of thesefibers into carbon filaments may be fol-lowed in several collections to be seen atMr. Edisons exposition, and which willg


Incandescent electric lights . n acquires a peculiar density andhardness, as was the case with the plati-num wires. To obtain this result thecarbonized filament must be brought intoincandescense while the vacuum is beingmade. The very nature of the substanceof vegetable origin employed in itsfabrication, has been modified. Fibers of bamboo are now used insteadof the paper originally employed. Theseare carbonized by a certain process, andthe successive transformation of thesefibers into carbon filaments may be fol-lowed in several collections to be seen atMr. Edisons exposition, and which willgratify the curious, and are worthy ofstudy. According to Mr. Batchelor andMr. O. A. Moses, co-laborers of Mr. Edi-son, and who represent him at the expo-sition, the resistance of these filamentsis 125 ohm, when brought up to an in-candescence corresponding to 16 candles; 11 but it can vary according to the luminouspower desired of the lamps, for it can bedistributed between two lamps, whosefilaments are correspondingly more or.


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Keywords: ., bookcentury1800, bookdecade1880, bookidincandescent, bookyear1882