conventional wood density
51Mitigation of peak oil — The standard Hubbert curve, plotting crude oil production of an oil well or oil field over time …
52Electric guitar — Fender Stratocaster String instrument Classification String instrument (plucked, either by fingerpicking, or with a pick.) …
53Malaysia — /meuh lay zheuh, sheuh/, n. 1. a constitutional monarchy in SE Asia: a federation, comprising the former British territories of Malaya, Sabah, and Sarawak: member of the Commonwealth of Nations. 20,376,235; 126,310 sq. mi. (327,143 sq. km). Cap …
54Oil shale extraction — is an industrial process in which kerogen mdash;a mixture of organic chemical compounds (including hydrocarbons) found in oil shale mdash;is converted into synthetic crude oil through pyrolysis. In pyrolysis, oil shale is heated in the absence of …
55plastic — plastically, plasticly, adv. /plas tik/, n. 1. Often, plastics. any of a group of synthetic or natural organic materials that may be shaped when soft and then hardened, including many types of resins, resinoids, polymers, cellulose derivatives,… …
56building construction — Techniques and industry involved in the assembly and erection of structures. Early humans built primarily for shelter, using simple methods. Building materials came from the land, and fabrication was dictated by the limits of the materials and… …
57Europe, history of — Introduction history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… …
58Coconut timber — Coconut woods in Klaten, Java, Indonesia. Coconut timber is a hardwood substitute from coconut palm trees. It is referred to in the Philippines as Coconut Lumber, or Coco Lumber. It is a new timber resource that comes from plantation crops and… …
59Drill bit — For the fictional character, see Drill Bit (Transformers). For the cancelled skyscraper nicknamed Drill bit, see Chicago Spire. For the types used in drilling wells, see Well drilling. From top to bottom: Spade, lip and spur (brad point), masonry …
60Strategic bombing during World War II — For a list of notable strategic bombings in the European Theatre of World War II, see List of air operations during the Battle of Europe. Main article: Air warfare of World War II Strategic bombing during World War II Part of World War II …
