Davy’s electric egg, c 1840
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A big horizontal humphry davy (1778-1829) electric egg with arc lamp after davy, vienna circa 1840. Intense light from voltaic arc between points of two carbon rods. It was not until some years after davy’s death in 1829 that carbon arc lamp widely used because rods need frequent adjustment. Davy used boxwood carbon. Length 75 cm and 32 cm high.
