Light Bulb

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The incandescent light bulb, incandescent lamp or incandescent light globe is a source of electric light that works by incandescence (a general term for heat-driven light emissions which includes the simple case of black body radiation). An electric current passes through a thin filament, heating it until it produces light. The enclosing glass bulb prevents the oxygen in air from reaching the hot filament, which otherwise would be destroyed rapidly by oxidation. Incandescent bulbs are also sometimes called electric lamps, a term also applied to the original arc lamps.

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Usefull:

Yes

Picture:

bulb.jpg

Short_description:

Also called Lamb. Crashes if you drop it.

Wikipedia:

http://en.wikipedia.org/wiki/Light_bulb

Category:

Tool

Date:

Giovedì, 29 Ottobre 2009 17:50

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