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Arc Lamp
In 1801 Sir Humphrey Davy of England created the first electric carbon arc lamp. It works by by hooking up 2 carbon rods to electrict, than you take the other ends and space them. When spaced at the right length therer will be a electrical current inbetween the 2 creating light. -
Incandescent Lamp
Sir Joesph Swann of England and Thomas Edison both created the first incandecent lamp. This works by electricty flowing through a filiment, which has resistance to electricty, and the resistance creates high heat and the high heat is what makes the light bulb glow. -
Street Lamps
Charles F. Bush creted the carbon arc street lamp. The street lamp used mercury vapor enclosed inside of a glass tube, usually in a small bulb. -
Tungsten Filiments Replace Carbon Filiments
Irving Langmuir invented the gass filled tungsten lamp. This incandescent light bulb replaced carbon with tungsten. -
Halogen Lights
Elmer Fridich and Emmett Wiley were granted a patent for a Halogen Light bulb. Which is just a improved type of incandecent lamp.
