Electric light bulbs had been around for decades by the 1870s. Most demonstration systems used arc lamps, which seemed far too bright and burned much too hot for indoor household use. In 1878, Thomas ...
IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. When many people imagine an inventor, ...
From the star that shines atop the iconic Rockefeller Center tree to the dazzling, multicolored bulbs strung on houses, storefronts and public squares around the world, Christmas lights brighten ...
When people name the most important inventions in history, light bulbs are usually on the list. They were much safer than earlier light sources, and they made more activities, for both work and play, ...
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