accurate grinding
91till — till1 /til/, prep. 1. up to the time of; until: to fight till death. 2. before (used in negative constructions): He did not come till today. 3. near or at a specified time: till evening. 4. Chiefly Midland, Southern, and Western U.S. before; to:… …
92wood — wood1 woodless, adj. /wood/, n. 1. the hard, fibrous substance composing most of the stem and branches of a tree or shrub, and lying beneath the bark; the xylem. 2. the trunks or main stems of trees as suitable for architectural and other… …
93Wood — /wood/, n. 1. Grant, 1892 1942, U.S. painter. 2. Leonard, 1860 1927, U.S. military doctor and political administrator. * * * I Hard, fibrous material formed by the accumulation of secondary xylem produced by the vascular cambium. It is the… …
94Huygens, Christiaan — or Christian Huyghens born April 14, 1629, The Hague died July 8, 1695, The Hague Dutch mathematician, astronomer, and physicist. He was the first to use a pendulum to regulate a clock (1656). He invented a method of grinding and polishing… …
95Leeuwenhoek, Antonie van — born Oct. 24, 1632, Delft, Neth. died Aug. 26, 1723, Delft Dutch microscopist. In his youth he was apprenticed to a draper; a later civil position allowed him to devote time to his hobby: grinding lenses and using them to study tiny objects. With …
96pneumatic device — Any of various tools and instruments that generate and use compressed air. Examples include rock drills, pavement breakers, riveters, forging presses, paint sprayers, blast cleaners, and atomizers. Compressed air power is flexible, economical,… …
97brick and tile — ▪ building material Introduction structural clay products, manufactured as standard units, used in building construction. The brick, first produced in a sun dried form at least 6,000 years ago and the forerunner of a wide range of… …
98Manzanar — See also: Manzanar, California Manzanar War Relocation Center …
99Dow Jones Industrial Average — Recent logarithmic graph of the DJIA from Jan 2000 through Jul 2011 …
100Iraq and weapons of mass destruction — This article concerns the Iraqi government s use, possession, and alleged intention of acquiring more types of weapons of mass destruction (WMD) during the presidency of Saddam Hussein. During his reign of several decades, he was internationally… …
