there are other abrasive materials whose
81Larry Norman — Infobox musical artist Name = Larry Norman Img size = 125 Img capt = Larry in Ohio, October 2001 Background = solo singer Birth name = Larry David Norman Born = Birth date|1947|4|8| Corpus Christi, Texas, United States Died = Death date and… …
82Tungsten — (pronEng|ˈtʌŋstən), also known as wolfram (IPA|/ˈwʊlfrəm/), is a chemical element that has the symbol W and atomic number 74.A steel gray metal, tungsten is found in several ores, including wolframite and scheelite. It is remarkable for its… …
83Pete (Disney character) — DisneyChar name =Pete first appearance = Alice Solves the Puzzle (1925) created by =Walt Disney and Ub Iwerks voiced by =Billy Bletcher (1932–1954) Will Ryan ( Mickey s Christmas Carol and DuckTales ) Arthur Burghardt ( The Prince and the Pauper… …
84Aspheric lens — An aspheric lens or asphere is a lens whose surfaces have a profile that is neither a portion of a sphere nor of a circular cylinder. In photography, a lens assembly that includes an aspheric element is often called an aspherical lens.The asphere …
