Walls of Constantinople — Istanbul, Turkey Map showing Constantinople and its walls du … Wikipedia
mining — /muy ning/, n. 1. the act, process, or industry of extracting ores, coal, etc., from mines. 2. the laying of explosive mines. [1250 1300; ME: undermining (walls in an attack); see MINE2, ING1] * * * I Excavation of materials from the Earth s… … Universalium
National Register of Historic Places listings in Hennepin County, Minnesota — Hennepin County, Minnesota contains 142 properties and historic districts that are listed on the National Register of Historic Places. A significant number of National Register properties in Hennepin County are a result of the establishment of… … Wikipedia
Milling machine — For the machine used in road construction, see Asphalt milling machine. Not to be confused with mill (grinding). Example of a bridge type CNC vertical milling center … Wikipedia
Metalworking — Machining a bar of metal on a lathe. Metalworking is the process of working with metals to create individual parts, assemblies, or large scale structures. The term covers a wide range of work from large ships and bridges to precise engine parts… … Wikipedia
Crusher — For other uses, see Crusher (disambiguation). A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust. Crushers may be used to reduce the size, or change the form, of waste materials so they can be more… … Wikipedia
Chisel — This article is about the tool. For the American band, see Chisel (band). For the album by Australian band Cold Chisel, see Chisel (album). Steel woodworking chisel … Wikipedia
Drill — For other uses, see Drill (disambiguation). Drill scheme A drill or drill motor is a tool fitted with a cutting tool attachment or driving tool attachment, usually a drill bit or driver bit, used for drilling holes in various materials or… … Wikipedia
List of bridges in Cambridge — The following is a list and brief history of the bridges in Cambridge, England, principally those over the River Cam. The River Cam enters Cambridge from the south west of the city and heads north past many of the historic colleges of the… … Wikipedia
Diffusion of technology in Canada — This article outlines the history of the diffusion or spread of technology in Canada. Technologies chosen for treatment here include, in rough order, transportation, communication, energy, materials, industry, public works, public services… … Wikipedia
Numerical control — CNC redirects here. For other uses, see CNC (disambiguation). A CNC Turning Center … Wikipedia