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Popular science and modern techology科普知识与现代技术
Thomas Edison
Electric by the Americans invented by Thomas Edison.
Edison purchased the patent, to try to improve the use of the filament. In 1879 he replaced by carbon filament light bulb made, the success of the maintenance of 13 hours. By 1880, he created the light bulb has been successfully carbonization Zhusi to maintain 1200 hours in the laboratory.
Most of the incandescent lamp will consume 90 percent of energy into useless heat, only less than 10% of the energy will be light. In contrast, fluorescent lamps (Fluorescent lamp, fluorescent tubes, also known as) the efficiency is much higher, close to 40% of the heat generated by the same brightness of incandescent only one-sixth. So many places, especially the need for air-conditioning in the summer of shopping malls, the building will use fluorescent lighting to save electricity.
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