compound mechanical drive
51Gramophone record — A 12 inch (30 cm) 33⅓ rpm record (left), a 7 inch 45 rpm record (right), and a CD (above) A gramophone record, commonly known as a phonograph record (in American English), vinyl record (in reference to vinyl, the material most commonly used after …
52Electric vehicle — Sustainable energy Renewable energy …
53Piasecki X-49 — Infobox Aircraft name= X 49 Speedhawk caption= X 49A Speedhawk VTDP Technology Demonstrator in flight type = Experimental high speed compound helicopter manufacturer = Sikorsky (original airframe) Piasecki Aircraft (modifications and testing)… …
54Water meter — A typical residential water meter A water meter is a device used to measure the volume of water usage. This article provides an overview of technical aspects of water meters. The worldwide prevalence of metering as well as its economic benefits… …
55Ship — A ship IPA|/ʃɪp/ audio|en us ship.ogg|Audio (US) is a large vessel that floats on water. Ships are generally distinguished from boats based on size. Ships may be found on lakes, seas, and rivers and they allow for a variety of activities, such as …
56Hybrid vehicle — For other types of hybrid transportation, see Hybrid vehicle (disambiguation). Hybrid technology redirects here. For the company formerly known as Hybrid Technologies, see Li ion Motors. Honda Insight hybrid …
57Combined cycle — Thermodynamics …
58Crankshaft — For other uses, see Crankshaft (disambiguation). Crankshaft (red), pistons (gray) in their cylinders (blue), and flywheel (black) The crankshaft, sometimes casually abbreviated to crank, is the part of an engine which translates reciprocating… …
59Drywall — For the musical group, see Drywall (musical project). Vertically hung drywall with joint compound. Drywall, also known as plasterboard, wallboard or gypsum board is a panel made of gypsum plaster pressed between two thick sheets of paper. It is… …
60metabolism — /meuh tab euh liz euhm/, n. 1. Biol., Physiol. the sum of the physical and chemical processes in an organism by which its material substance is produced, maintained, and destroyed, and by which energy is made available. Cf. anabolism, catabolism …
