to cast in cement -
121technology, history of — Introduction the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …
122Corgi Toys — (trademark) is the name of a range of die cast toy vehicles produced by Mettoy Playcraft Ltd. in the United Kingdom. The Mettoy company was founded in 1933 by German émigré Philip Ullmann in Northampton, England, where he was later joined by… …
123Asphalt — Note: The terms bitumen and asphalt are mostly interchangeable, except where asphalt is used as an abbreviation for asphalt concrete For other uses, see Asphalt (disambiguation). Natural bitumen from the Dead sea …
124Brick — For other uses, see Brick (disambiguation). An old brick wall in English bond laid with alternating courses of headers and stretchers …
125Iron — Fe redirects here. For other uses, see Fe (disambiguation). This article is about the chemical element. For other uses, see Iron (disambiguation). manganese …
126Sedimentary rock — Middle Triassic marginal marine sequence of siltstones (below) and limestones (above), Virgin Formation, southwestern Utah, USA Sedimentary rock are types of rock that are formed by the deposition of material at the Earth s surface and within… …
127Prestressed concrete — diagram Prestressed concrete is a method for overcoming concrete s natural weakness in tension. It can be used to produce beams, floors or bridges with a longer span than is practical with ordinary reinforced concrete. Prestressing tendons… …
128Concrete masonry unit — A stack of rectangular CMUs Cinder block redirects here. For the American singer, see Cinder Block (musician). In the United States, a concrete masonry unit (CMU) – also called concrete block, cement block, and foundation block – is a large… …
