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The Light Airborne Multi-Purpose System (LAMPS) is the United States Navy's program that develops crewed helicopters to assist the surface fleet in anti-submarine warfare. The purpose of LAMPS is to scout outside the limits of a fleet's radar and sonar range to detect and track enemy submarines or missile-equipped escort ships and feed the real ...
1893 GE introduces first commercial fully enclosed carbon arc lamp. Sealed in glass globes, it lasts 100h and therefore 10 times longer than hitherto carbon arc lamps [5] [9] 1893 Nikola Tesla puts forward his ideas on high frequency and wireless electric lighting [10] [11] which included public demonstrations where he lit a Geissler tube ...
The Kaper Koraon treasure consists of 56 total silver objects including: eight chalices, seven patens, five crosses, one cross revetment, two lamp stands, three lamps, three ewers, one flask, one bowl, one mirror, one box, eleven spoons, one ladle, two strainers, two fans, and four plaques.
Objections more specifically relating to compact fluorescent light bulbs include the different quality of light produced by phosphor-based lamps compared to incandescent lamps [15] and that compact fluorescent light bulbs contain small amounts of mercury, a potent neurotoxin, which is especially dangerous to children and pregnant women, and ...
A kerosene lamp produced by the factory of Karlskrona Lampfabrik in Sweden c. 1890s Swiss flat-wick kerosene lamp. The knob protruding to the right adjusts the wick, and hence the flame size. A kerosene lamp (also known as a paraffin lamp in some countries) is a type of lighting device that uses kerosene as a fuel.
Approach lights at Jyväskylä Airport, Finland The approach lighting system of Bremen Airport Approach lighting at Love Field, Dallas. An approach lighting system (ALS) is a lighting system installed on the approach end of an airport runway and consisting of a series of lightbars, strobe lights, or a combination of the two that extends outward from the runway end. [1]
An open (single envelope) CFL [12] An encapsulated/closed (double envelope) CFL. Some fluorescent lamps emit ultraviolet radiation. [citation needed] The Health Protection Agency of the United Kingdom has conducted research concluding that exposure to open (single envelope) compact fluorescent lamps (CFLs) for over 1 hour per day at a distance of less than 30 cm can exceed guideline levels as ...
The searchlight included a sophisticated system to control the carbon arc lamp, extending the carbon electrodes to keep a constant arc distance as the ends of the electrodes burned away. [ 2 ] The 8 kilowatt, direct current generator that powered the searchlight was driven by a six-cylinder, BMW engine, of a type used in pre-war cars.