Seeing a spider isn't a problem. It becomes a problem when it disappears!
Edison's Pearl Street generator testIn 1882, the first of six steam-driven air-cooled generators being installed at Thomas Edison’s Pearl Street power station was fired up for testing. Each would be capable of producing about 90 kW DC at 110 volts DC. Three days later, the first, the 27 ton “Jumbo No. 1,” was ready to test for electricity generation, and on 8 Jul 1882, it illuminated a large panel of incandescent bulbs. Its armature alone weighed 6 tons. All six had been built at the Edison Machine Works, all were installed by August.. Each could power about 700 sixteen-candlepower lamps. This was Edison's first central power station, which had an opening ceremony on 4 Sep 1882. Later the following year, it served 508 subscribers and supplied 12,732 bulbs.« |
