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flywheel

(Encyclopedia)flywheel, heavy metal wheel attached to a drive shaft, having most of its weight concentrated at the circumference. Such a wheel resists changes in speed and helps steady the rotation of the shaft whe...

compressor

(Encyclopedia)compressor, machine that decreases the volume of air or other gas by the application of pressure. Compressor types range from the simple hand pump and the piston-equipped compressor used to inflate ti...

internal-combustion engine

(Encyclopedia)CE5 Internal-combustion engines: In the four-stroke reciprocating engine (above), a mixture of fuel and air is taken into the chamber on the down-stroke of the piston, is compressed on the up-strok...

shock absorber

(Encyclopedia)shock absorber, device for reducing the effect of a sudden shock by the dissipation of the shock's energy. On an automobile, springs and shock absorbers are mounted between the wheels and the frame. W...

de la Mare, Walter

(Encyclopedia)de la Mare, Walter də lə mâr [key], 1873–1956, English poet and novelist. For many years he worked in the accounting department of the Anglo-American Oil Company. Much of his verse and prose show...

De Maria, Walter Joseph

(Encyclopedia)De Maria, Walter Joseph, 1935–2013, American sculptor, b. Albany, Calif. From the late 1950s into the 60s De Maria partcipated in “Happenings,” created Dada-influenced minimalist sculptures, and...

Haworth, Sir Walter Norman

(Encyclopedia)Haworth, Sir Walter Norman, 1883–1950, British chemist, Ph.D. Univ. of Göttingen, 1911. Haworth held academic posts at Imperial College of Science and Technology in London (1911–12), the Univ. of...

Lymington and Pennington

(Encyclopedia)Lymington and Pennington lĭmˈĭngtən [key], town (1991 pop. 11,614), Hampshire, S England, on the Solent channel at the mouth of the Lymington River. It is a market town, resort, and port; coast tr...

pneumatic tool

(Encyclopedia)pneumatic tool no͝omătˈĭk [key], instrument activated by air pressure. Pneumatic tools are designed around three basic devices: the air cylinder, the vane motor, and the sprayer. The air cylinder ...

brake, in technology

(Encyclopedia)CE5 Shoe brake CE5 Disk brake brake, in technology, device to slow or stop the motion of a mechanism or vehicle. The vacuum brake system, or vacuum brake, depends upon the use of a vacuum to ...