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The lamps have been made from a variety of materials over the years, evolving from the early full steel prototypes into later models made from brass and aluminium. [14] Although the lamp is still marketed as an iconic British design, production for all lamps, except the 1227 Giant model, has been moved to China. [15]
Image credits: Weird And Wonderful Secondhand Finds The BBC reports that, based on the findings by secondhand fashion retailer ThredUp, a whopping 67% of British millennials shop secondhand, while ...
A balanced-arm lamp has a base, a stand or body, (in most cases) two connected arms (in many cases fitted with springs), and a lamp-head. The lamp can be moved into almost any position, and the balancing device will maintain the position until moved again. The same overall mechanism can be employed in other devices with similar requirements ...
The Sussmann lamp [58] was introduced into Britain in 1893 and following trials at Murton Colliery in Durham it became a widely used electric lamp with 3000 or so reported by the company in use in 1900 [59] However, by 1910 there were only 2055 electric lamps of all types in use – about 0.25% of all safety lamps. [60]
Light fixture, or light fitting or luminaire, is an electrical device containing an electric lamp that provides illumination; Signal lamp, or Aldis lamp or Morse lamp, a semaphore system for optical communication; Safety lamp, any of several types of lamp that provides illumination in coal mines Davy lamp
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An acetylene gas miner's lamp. A carbide lamp or acetylene gas lamp is a simple lamp that produces and burns acetylene (C 2 H 2), which is created by the reaction of calcium carbide (CaC 2) with water (H 2 O). [1] Acetylene gas lamps were used to illuminate buildings, as lighthouse beacons, and as headlights on motor-cars and bicycles. Portable ...
The US secretly injecting people (typically poor / minorities, including children and pregnant women) with plutonium and other radioactive materials, and then studying them for decades.
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