dental reflector
11Beryllium — (pronEng|bəˈrɪliəm) is a chemical element with the symbol Be and atomic number 4. A bivalent element, beryllium is a steel grey, strong, light weight yet brittle alkaline earth metal. It is primarily used as a hardening agent in alloys, most… …
12Gold — This article is about the metal. For the color, see Gold (color). For other uses, see Gold (disambiguation). platinum ← gold → mercury …
13Depleted uranium — The DU penetrator of a 30 mm round[1] Depleted uranium (DU; also referred to in the past as Q metal, depletalloy, or D 38) is uranium with a lower content of the fissile isotope U 235 than natural uranium (natural uranium is about 99.27% uranium… …
14Halogen lamp — A halogen lamp is an incandescent lamp in which a tungsten filament is sealed into a compact transparent envelope filled with an inert gas, plus a small amount of halogen such as iodine or bromine. The halogen cycle increases the lifetime of the… …
15Nuclear technology — A residential smoke detector is the most familiar piece of nuclear technology for some people Nuclear technology is technology that involves the reactions of atomic nuclei. Among the notable nuclear technologies are nuclear power, nuclear… …
16Greenville, North Carolina — City of Greenville   City   City hall on the left and Jarvis Memorial United Methodist Church on the right in Uptown …
17Zinc oxide — Other names Zinc white Calamine Identifiers …
18Mount Royal College — Infobox University name = Mount Royal College image size = 150px caption = Mount Royal College crest motto = Quam Bene Non Quantum mottoeng = Not how much, but how well. established = December 16 1910 type = Public degree granting community… …
19Communication Moon Relay — For the moon bounce children s entertainment inflatable, see moonwalk (bounce house). Sailors on board the USS Hancock (CV 19) spelling out Moon Relay. This picture was transmitted via moon bounce as part of the official Navy… …
20Judson B. Coit Observatory — Organization Boston University Department of Astronomy Location Boston …
