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A Tizio desk lamp. Tizio is a desk lamp created by Richard Sapper for Artemide in 1972. [1] It was selected for the Compasso d'Oro industrial design award in 1979. An item of it is part of the collections of the Metropolitan Museum of Art [2] and of the Museum of Modern Art.
This is a list of the tallest lighthouses, by tower height (as opposed to focal height, i.e. height of the lamp of a lighthouse from water level).The list includes only "traditional lighthouses", as defined by The Lighthouse Directory, i.e. buildings built by navigation safety authorities primarily as an aid to navigation. [1]
The oil lamps he provided featured parabolic reflectors made from burnished copper, which concentrated the light and enhanced its brightness. Manufacturing such reflectors within tight tolerances was not straightforward, [ 2 ] but the innovations devised by Smith gave his lamps quadruple the power of standard oil-lit lamps without any kind of ...
The Lewis lamp would use groups of lamps. The Lewis lamp design proved to have several flaws. To begin, it was really an inferior version of the Argand lamp. The reflector was made of copper with an interior silver plating to reflect light; however, the thin copper would warp under the heat of the lamps to become more spherical than parabolic.
G38 (lamp base) Gas lighting; Gas-discharge lamp; GravityLight; ... Touch-sensitive lamp; Trouble light; Twinkle bulb; Types of electrical lamp; U. UV-B lamps; W ...
Their primary job was to maintain the revolving light, which was then visible 26 nautical miles (48 km; 30 mi) out to sea. For most of the 20th century cooking was done on a solid-fuel range and the accommodation was lit by paraffin lamps. [5] Electricity first reached the lighthouse in 1975, whereupon an electric lamp was installed in the optic.