glass edge-grinding machine
71Wood — /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… …
72Drone music — Stylistic origins Indian classical music Experimental music[1] Minimalist music[2] 1960s experimental rock[3] …
73Perpetual motion — For other uses, see Perpetual motion (disambiguation). Robert Fludd s 1618 water screw perpetual motion machine from a 1660 wood engraving. This device is widely credited as the first recorded attempt to describe such a device in order to produce …
74Sex positions — are positions which people may adopt during or for the purpose of sexual intercourse or other sexual activities. Sexual acts are generally described by the positions the participants adopt in order to perform those acts. Though sexual intercourse …
75List of sex positions — This list of sex positions includes descriptions of various forms of sexual intercourse and other sexual acts between people. Sexual acts are generally described by the positions the participants take in order to perform those acts. Alfred Kinsey …
76Coffee — This article is about the beverage. For the bean it is made from, see Coffee bean. For other uses, see Coffee (disambiguation). Coffee A cup of black coffee Type Hot Country of origin …
77Hard disk drive — Hard drive redirects here. For other uses, see Hard drive (disambiguation). Hard disk drive Mechanical interior of a modern hard disk drive Date invented 24 December 1954 [1] …
78Medieval technology — Pumhart von Steyr, a 15th century supergun …
79space exploration — Investigation of the universe beyond Earth s atmosphere by means of manned and unmanned spacecraft. Study of the use of rockets for spaceflight began early in the 20th century. Germany s research on rocket propulsion in the 1930s led to… …
80Glossary of rail terminology — Rail transport Operations Track Maintenance High speed Gauge Stations …
