(any mechanical driving device)
21USB — This article is about the computer bus to connect peripherals. For other uses of USB, see USB (disambiguation). Universal Serial Bus Original logo Type Computer Hardware Bus …
22Ohm's law — This article is about the law related to electricity. For other uses, see Ohm s acoustic law. V, I, and R, the parameters of Ohm s law. Ohm s law states that the current through a conductor between two points is directly proportional to the… …
23Fuel economy-maximizing behaviors — (also known as green driving) describe techniques that drivers can use to optimize their automobile fuel economy. The energy in fuel consumed in driving is lost in many ways, including engine inefficiency, aerodynamic drag, rolling friction, and… …
24Muslim Agricultural Revolution — The Islamic Golden Age from the 8th century to the 13th century witnessed a fundamental transformation in agriculture known as the Arab Agricultural Revolution, Medieval Green Revolution, [A. M. Watson (1981), A Medieval Green Revolution: New… …
25Watermill — This article is about a type of structure. For other locational uses see Milldam . For details of the technologies, see Water wheel and Mill machinery . A watermill is a structure that uses a water wheel or turbine to drive a mechanical process… …
26explosive — explosively, adv. explosiveness, n. /ik sploh siv/, adj. 1. tending or serving to explode: an explosive temper; Nitroglycerin is an explosive substance. 2. pertaining to or of the nature of an explosion: explosive violence. 3. likely to lead to… …
27Outline of robotics — See also: Index of robotics articles The following outline is provided as an overview of and topical guide to robotics: Robotics – branch of technology that deals with the design, construction, operation, structural disposition, manufacture and… …
284-8-4 — Under the Whyte notation for the classification of steam locomotives, a 4 8 4 locomotive has four leading wheels, eight coupled driving wheels and four trailing wheels.Other equivalent classifications are: UIC classification: 2D2 (also known as… …
29List of Sonic the Hedgehog comic book characters — This article lists the fictional characters in the Sonic the Hedgehog comic series. Contents 1 Cast creation and influence 2 Main characters 2.1 Antoine D Coolette 2.2 …
30Brushed DC electric motor — A brushed DC motor is an internally commutated electric motor designed to be run from a direct current power source. Contents 1 Simple two pole DC motor 2 The commutating plane 2.1 Compensation for stator field distortion …
