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Another mercury switch design. A mercury switch is an electrical switch that opens and closes a circuit when a small amount of the liquid metal mercury connects metal electrodes to close the circuit. There are several different basic designs (tilt, displacement, radial, etc.) but they all share the common design strength of non-eroding switch ...
Mercury-vapor lamp. A 175- watt mercury-vapor light approximately 15 seconds after starting. A closeup of a 175- W mercury vapor lamp. The small diagonal cylinder at the bottom of the arc tube is a resistor which supplies current to the starter electrode. A mercury-vapor lamp is a gas-discharge lamp that uses an electric arc through vaporized ...
Tilt fuze. A tilt fuze or fuse is a device usually used in the operation of car bombs and other such detonators, relying on the force of a jerk or similar movement for the triggering of the desired explosion. [1] The tilt fuze is typically a home-made mercury switch. It consists of a small tube no larger than a medical tablet bottle, made from ...
Elliott Cresson Medal (1910) Signature. Peter Cooper Hewitt (May 5, 1861 – August 25, 1921) was an American electrical engineer and inventor, who invented the first mercury-vapor lamp in 1901. [1] Hewitt was issued U.S. patent 682,692 on September 17, 1901. [2] In 1903, Hewitt created an improved version that possessed higher color qualities ...
A compact fluorescent lamp (CFL), also called compact fluorescent light, energy-saving light and compact fluorescent tube, is a fluorescent lamp designed to replace an incandescent light bulb; some types fit into light fixtures designed for incandescent bulbs. The lamps use a tube that is curved or folded to fit into the space of an ...
Mercury rectifier on display in the Beromünster AM transmitter in Switzerland, before being decommissioned.Three-phase full-wave rectifier with six anodes. A mercury-arc valve or mercury-vapor rectifier or (UK) mercury-arc rectifier [1] [2] is a type of electrical rectifier used for converting high-voltage or high-current alternating current (AC) into direct current (DC).