Gas discharge lamps Reference Libraries

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Mercury arc Valve
2010-10-28 18:28:32

A mercury arc valve converts high-voltage or high-current alternating current into direct current. It is an electrical rectifier often used to provide power for industrial motors, electric railways, streetcars, and electric locomotives. Peter Cooper Hewitt, in 1902, invented the mercury arc rectifier. It was further developed by researchers throughout the 1920s and 1930s. Prior to...

Incandescent Light Bulb
2010-09-29 16:52:36

The incandescent light bulb provides a source of electric light through incandescence. The bulb works by passing current through a filament which heats to a temperature that produces light. The glass bulb that contains the filament prevents oxidation of the hot filament. The bulbs are also called electric lamps. Incandescent bulbs come in a various sizes and voltages. They can range from...

Yablochkov Pavel Nikolayevich
2009-04-23 12:28:48

Pavel Nikolayevich Yablochkov (September 14, 1847 "“ March 31, 1984) was a Russian electrical engineer, inventor, and businessman. His most notable invention was a type of electric carbon arc lamp, called the Yablochkov candle. Yablochkov graduated from Mykolayiv Engineering Institute as a military engineer in 1866. In 1869, he continued his education at the Galvanic School in St....

Word of the Day
  • Any of various tropical Old World birds of the family Indicatoridae, some species of which lead people or animals to the nests of wild honeybees. The birds eat the wax and larvae that remain after the nest has been destroyed for its honey.
Honeyguide birds have even been known to eat candles.