sufficient lighting
61Cold cathode — This article is about light sources and indicators. For cold cathode ion sources, see Ion source. CCFL redirects here. For other uses, see CCFL (disambiguation). Cold cathode fluorescent lamp A cold cathode is a cathode used within nixie tubes,… …
62Mercury-vapor lamp — Mercury Lamp redirects here. For the character in the Rozen Maiden anime and manga, see Characters of Rozen Maiden. A 175 watt mercury vapor yard light approximately 15 seconds after starting …
63One Canada Square — A view of One Canada Square, the second tallest building in the United Kingdom. Record height Tallest in the United …
64India — /in dee euh/, n. 1. Hindi, Bharat. a republic in S Asia: a union comprising 25 states and 7 union territories; formerly a British colony; gained independence Aug. 15, 1947; became a republic within the Commonwealth of Nations Jan. 26, 1950.… …
65Christmas in the post-War United States — New Orleans department store Santa Claus, 1954 Christmas in the United States during the post War years (1946–1964) reflected a period of peace, productivity, and prosperity. Americans staged sumptuous Christmases and enjoyed a variety of holiday …
66Neodymium — praseodymium ← neodymium → promethium ↑ Nd ↓ U …
67Circadian rhythm — Circadian redirects here. For the album by the rock band 5th Projekt, see Circadian (album). Some features of the human circadian biological clock A circadian rhythm, popularly referred to as body clock, is an endogenously driven, roughly 24 hour …
68Light meter — A light meter is a device used to measure the amount of light. In photography, a light meter is often used to determine the proper exposure for a photograph. Typically a light meter will include a computer, either digital or analogue, which… …
69Neon lamp — See also: Neon lighting A General electric NE 34 glow lamp, manufactured circa 1930. A neon lamp (also neon glow lamp) is a miniature gas discharge lamp that typically contains neon gas at a low pressure in a glass capsule. Only a thin region… …
70Daniel McFarlan Moore — 1906 photograph taken by the light of a Moore lamp Born February 27, 1869(1869 02 27) Northumberland, Pennsylvania Died …
