POWER AND SYRED / SCIENCE PHOTO LIBRARY POWER AND SYRED / SCIENCE PHOTO LIBRARY
Filament of a light bulb. Coloured scanning electron micrograph (SEM) of the double coiled tungsten wire filament of a 60 Watt domestic light bulb. Magnification: x132 at 6x7cm size. Magnification: x350 at 8x6inch size.
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