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Plastic optical fiber (POF) or polymer optical fiber is an optical fiber that is made out of polymer. Similar to glass optical fiber, POF transmits light (for illumination or data) through the core of the fiber. Its chief advantage over the glass product, other aspect being equal, is its robustness under bending and stretching.
A "fitter" describes how the lampshade connects to the lamp base. The most common lampshade fitter is a Spider fitter. Spider fitters are set on top of a lamp harp, and secured with a finial. The harp is typically seated below the socket and two arms rise up around the light bulb and join at the top, where it provides resting support for the ...
Some human remains at Buchenwald, [1] including a lampshade made of human skin. [2]There are two notable reported instances of lampshades made from human skin.After World War II it was claimed that Nazis had made at least one lampshade from murdered concentration camp inmates: a human skin lampshade was displayed by Buchenwald concentration camp commandant Karl-Otto Koch and his wife Ilse Koch ...
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 current is supplied to the filament by terminals or wires ...
The human eye's response to light is non-linear: halving the light level does not halve the perceived brightness of a space, it makes it look only slightly dimmer. [3] [4] If light is redistributed from the brightest parts of a room to the dimmest, the room therefore appears brighter overall, and more space can be given a useful and comfortable level of illumination (see before and after ...
A bayonet mount A bayonet mount before and after insertion Early-19th century socket bayonet Socket of a bayonet. A bayonet mount (mainly as a method of mechanical attachment, such as fitting a lens to a camera using a matching lens mount) or bayonet connector (for electrical use) is a fastening mechanism consisting of a cylindrical male side with one or more radial pegs, and a female receptor ...
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