Self-powered lighting — is a generic term describing devices that emit light continuously without an external power source. Self powered lighting is most frequently used on wristwatches (i.e. Night watches), gun sights, and certain emergency and tactical equipment.Early … Wikipedia
Luminous paint — Luminous (or luminescent) paint exhibits luminescence. In other words, it gives off visible light through fluorescence, phosphorescence, or radioluminescence.Fluorescent paintFluorescent paint reacts to long wave ultraviolet (UV) radiation,… … Wikipedia
Diving watch — Omega Seamaster model 2220.80, with a water resistance of 300 m (1,000 ft). The second crown (at 10 o clock) is a helium release valve. A diving watch is a watch designed for underwater diving that features, as a minimum, a water… … Wikipedia
bioluminescence — bioluminescent, adj. /buy oh looh meuh nes euhns/, n. the production of light by living organisms. [1915 20; BIO + LUMINESCENCE] * * * Emission of light by an organism or biochemical system (e.g., the glow of bacteria on decaying meat or fish,… … Universalium
Compass — This article is about the direction finding instrument used in navigation. For other uses, see Compass (disambiguation). A simple dry magnetic pocket compass … Wikipedia
motion-picture technology — Introduction the means for the production and showing of motion pictures. It includes not only the motion picture camera and projector but also such technologies as those involved in recording sound, in editing both picture and sound, in… … Universalium
In the Flesh (film) — For other uses, see In the Flesh (disambiguation) Infobox Film name = In the Flesh caption = director = Ben Taylor producer = Joe Ansley and Ben Taylor (executive producers) Julie R. Lee writer = Ben Taylor starring = Dane Ritter Ed Corbin Alex… … Wikipedia
Rolex — Infobox Company name = Rolex SA type = Privately held company foundation = 1905 by Hans Wilsdorf and Alfred Davis in London location city = Geneva location country = Switzerland location = locations = key people = Patrick Heiniger, CEO area… … Wikipedia
luminescence — luminescent, adj. /looh meuh nes euhns/, n. 1. the emission of light not caused by incandescence and occurring at a temperature below that of incandescent bodies. 2. the light produced by such an emission. [1885 90; < L lumin (see LUMEN) +… … Universalium
Timeline of Islamic science and engineering — This timeline of Islamic science and engineering covers the general development of science and technology in the Islamic world during the Islamic Golden Age, usually dated from the 7th to 16th centuries.From the 17th century onwards, the advances … Wikipedia
Radium — (pronEng|ˈreɪdiəm) is a radioactive chemical element which has the symbol Ra and atomic number 88. Its appearance is almost pure white, but it readily oxidizes on exposure to air, turning black. Radium is an alkaline earth metal that is found in… … Wikipedia