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French improved lamp uses tiny current for steady light
An article notes a French electrician patenting a lamp that interrupts current in infinitesimal fractions to cool the filament without affecting perceived light, claiming usage of only one two-hundredth of ordinary lamp current. It also mentions copper coloring by electric current. Advertisements push Silver Creek Splint coal for cleaner, hotter cooking and heating with promises of domestic happiness.
MENTIONED IN THIS ARTICLE
Cornell University
Silver Creek
West Virginia Sprint
Kentucky