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wheel bug
(Encyclopedia)wheel bug: see assassin bug.wheel window
(Encyclopedia)wheel window: see rose window.spinning
(Encyclopedia)spinning, the drawing out, twisting, and winding of fibers into a continuous thread or yarn. From antiquity until the Industrial Revolution, spinning was a household industry. The roughly carded fiber...roulette
(Encyclopedia)roulette ro͞olĕtˈ [key], game of chance popular in gambling casinos, and in a simplified form elsewhere. In gambling houses the roulette wheel is set in an oblong table. Its outer area is marked of...windmill
(Encyclopedia)windmill, apparatus that harnesses wind power for a variety of uses, e.g., pumping water, grinding corn, driving small sawmills, and driving electrical generators. Windmills were probably not known in...bicycle
(Encyclopedia)bicycle, light, two-wheeled vehicle driven by pedals. The name velocipede is often given to early forms of the bicycle and to its predecessor, the dandy horse, a two-wheeled vehicle moved by the thrus...gear
(Encyclopedia) CE5 Types of gears gear, toothed wheel, cylinder, or cone that transmits motion from one part of a machine to another; it is one of the oldest means of transmitting motion. When the teeth of two g...Cartouche
(Encyclopedia)Cartouche kärto͞oshˈ [key], 1693–1721, nickname of Louis Dominique Bourguignon, French highwayman. His band terrorized the Paris area until his capture. He was broken on the wheel. Cartouche's da...pulley
(Encyclopedia) CE5 Pulleys: The mechanical advantage (MA) of a system of pulleys is equal to the number of supporting strands: in A MA=1 and in B MA=2. pulley, simple machine consisting of a wheel over which a r...tire
(Encyclopedia)tire, device made of rubber and fabric and attached to the outer rim of a vehicle wheel. Solid rubber tires were in limited use before 1850; they are still used in some special applications, e.g., for...Browse by Subject
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