"Arc lamp" or "arc light" is the general term for a class of lamps that produce light by an electric arc (also called a voltaic arc). The lamp consists of two electrodes, first made from carbon but typically made today of tungsten, which are separated by a gas. The type of lamp is often named by the gas contained in the bulb; including neon, argon, xenon, krypton, sodium, metal halide, and mercury, or by the type of electrode as in carbon-arc lamps. The common fluorescent lamp is a low-pressure mercury arc lamp.
Read more about Arc Lamp: Operation, Carbon Arc Lamp, History
Famous quotes containing the words arc and/or lamp:
“If I am not, may God put me there; and if I am, may God so keep me.”
—Joan Of Arc (c.1412–1431)
“With silent lips. “Give me your tired, your poor,
Your huddled masses yearning to breathe free,
The wretched refuse of your teeming shore.
Send these, the homeless, tempest-tost to me.
I lift my lamp beside the golden door!””
—Emma Lazarus (1849–1887)