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An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light with a filament that is heated until it glows. The filament is enclosed in a glass bulb that is either evacuated or filled with inert gas to protect the filament from oxidation .
- Electric light
The energy efficiency of electric lighting has increased...
- Edison light bulb
Edison light bulbs, also known as filament light bulbs and...
- Electric light
A light-bulb produces light from electricity. In addition to lighting a dark space, they can be used to show an electronic device is on, to direct traffic , for heat , and for many other purposes. Billions are in use, some even in outer space .
22 lis 2013 · From incandescent bulbs to fluorescents to LEDs, we're exploring the long history of the light bulb.
The energy efficiency of electric lighting has increased radically since the first demonstration of arc lamps and the incandescent light bulb of the 19th century. Modern electric light sources come in a profusion of types and sizes adapted to many applications.
Edison light bulbs, also known as filament light bulbs and retroactively referred to as antique light bulbs or vintage light bulbs, are either carbon- or early tungsten-filament incandescent light bulbs, or modern bulbs that reproduce their appearance.
Explore the history of the light bulb and discover who really invented it with BBC Science Focus Magazine.
8 maj 2018 · Light Bulb Background From the earliest periods of history until the beginning of the 19th century, fire was man's primary source of light. This light was produced through different means—torches, candles , oil and gas lamps.
