dust-proof electrical equipment
51Compact Cassette — A TDK D C60 cassette, a common speech quality tape with a 60 minute playing time, in a housing similar to that of the original Compact Cassette specification …
52Algeria — /al jear ee euh/, n. a republic in NW Africa: formerly comprised 13 departments of France; gained independence 1962. 29,830,370; 919,352 sq. mi. (2,381,122 sq. km). Cap.: Algiers. * * * Algeria Introduction Algeria Background: After a century of… …
53coal — coalless, adj. /kohl/, n. 1. a black or dark brown combustible mineral substance consisting of carbonized vegetable matter, used as a fuel. Cf. anthracite, bituminous coal, lignite. 2. a piece of glowing, charred, or burned wood or other… …
54Germanium — (pronEng|dʒɚˈmeɪniəm) is a chemical element with the symbol Ge and atomic number 32. It is a lustrous, hard, silver white metalloid in the carbon group, chemically similar to its group neighbors tin and silicon. Germanium has five naturally… …
55Plastic — is the general common term for a wide range of synthetic or semisynthetic organic solid materials suitable for the manufacture of industrial products. Plastics are typically polymers of high molecular weight, and may contain other substances to… …
56Smoke detector — A smoke detector is a device that detects smoke, typically as an indicator of fire. Commercial, industrial, and mass residential devices issue a signal to a fire alarm system, while household detectors, known as smoke alarms, generally issue a… …
57Infrared — For other uses, see Infrared (disambiguation). An image of two people in mid infrared ( thermal ) light (false color) …
58Pathways into Darkness — Infobox VG title = Pathways Into Darkness developer = Bungie Software Products Corporation publisher = Bungie Software Products Corporation distributor = designer = Jason Jones engine = version = released = 1993 genre = Blend of Role Playing Game …
59Dates of 2008 — ▪ 2009 January As we meet tonight, our economy is undergoing a period of uncertainty.… At kitchen tables across our country, there is a concern about our economic future. U.S. Pres. George W. Bush, in his final state of the union address, January …
60Gliding — is a recreational activity and competitive sport in which pilots fly un powered aircraft known as gliders or sailplanes. Properly, the term gliding refers to descending flight of a heavier than air craft, whereas soaring is the correct term to… …
