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suspension
suspension in automobiles, system of springs used to suspend the frame, body, engine, and power train above the wheels. Its principal purpose is to lessen the jarring of the automobile that is caused by irregularities in the roads traveled. Since the wheels of an automobile accelerate, stop, and st...
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Burma Road
Burma Road in China and Myanmar, extending from the railhead of Lashio, Myanmar, to Kunming, Yunnan prov., China. About 700 mi (1,130 km) long and constructed through rough mountain country, it was a remarkable engineering achievement. Undertaken by the Chinese after the start of the Sino-Japanese ...
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bicycle
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 thrust of the rider's feet upon the ground. Probably the first practical dandy horse was the draisine, ...
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George Hepplewhite
George Hepplewhite , d. 1786, English cabinetmaker and furniture designer. His style is characterized by light, curvilinear forms, painted or inlaid decoration, and distinctive details such as slender tapering legs (plain, fluted, or reeded) and the spade foot. Decorative motifs include designs intr...
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carriage
carriage wheeled vehicle, in modern usage restricted to passenger vehicles that are drawn or pushed, especially by animals. Carriages date from the Bronze Age; early forms included the two-wheeled cart and four-wheeled wagon for transporting goods. An early passenger carriage was the chariot , but...
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motorcycle
motorcycle motor vehicle whose design is based on the bicycle. The German inventor Gottlieb Daimler is generally credited with building the first practical motorcycle in 1885. The motorcycle did not become dependable and popular, however, until after 1900. The typical motorcycle has an air-cooled...
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spinning
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 was at first held in one hand and drawn out and twisted by the other hand. The earliest tools were ...
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stagecoach
stagecoach heavy, closed vehicle on wheels, usually drawn by horses, formerly used to transport passengers and goods overland. Throughout the Middle Ages and until about the end of the 18th cent., the condition of roads in Europe discouraged the use of wheeled vehicles, and travel by land was regul...
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wheel
wheel Through the many millennia of the Paleolithic period and the Neolithic period no use of the wheel was known to humans. Its use was not known to the Native Americans until the Europeans introduced it. In the Old World it came into use in the Bronze Age, when oxen and horses were first used as ...
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water wheel
water wheel device for utilizing the power of flowing or falling water. The Norse wheel is the oldest type known. Despite its name it probably originated in the Middle East, where the swift stream required by this type of wheel is common. The Norse wheel has a vertical shaft directly connected at t...
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