File:Arc Lighting.jpg
Arc_Lighting.jpg (200 × 398 pixels, file size: 9 KB, MIME type: image/jpeg)
This Jablochkoff “electric candle” arc lamp from about 1878 is one of the earliest electric lamps. The “candle” made light by passing an electric current between two carbon rods. These rods were mounted vertically, side-by-side in the center of the lamp. They were maintained at a precise distance from each other by a wax separator that evaporated as the carbons burned down (only the remnant stubs are visible here). Jablochkoff candles operated only on alternating current, with the power leads attached to the connectors seen on either side of the base. Courtesy: Smithsonian Institution.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 16:49, 5 September 2008 | | 200 × 398 (9 KB) | EMW (talk | contribs) | This Jablochkoff “electric candle” arc lamp from about 1878 is one of the earliest electric lamps. The “candle” made light by passing an electric current between two carbon rods. These rods were mounted vertically, side-by-side in the center of th |
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