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Tag: Lamp

  • Edison Patents Incandescent Lamp

    Janaury 27, 1880 Thomas Edison patents the electric incandescent lamp. While other incandescent lamps were created before his, Edison’s version was able to outstrip the others because of a combination of three factors: an effective incandescent material, a higher vacuum than others were able to achieve (by use of the Sprengel pump) and a high resistance…