|
differential
differential in the automobile, a set of gears used on the driving (usually rear) axle. The two wheels on the driving axle must be interconnected in order to receive their energy from the same source, the driving shaft; at the same time they must be free to revolve at different speeds when necessar...
Read more
|
|
turbine
turbine rotary engine that uses a continuous stream of fluid (gas or liquid) to turn a shaft that can drive machinery.
A water, or hydraulic, turbine is used to drive electric generators in hydroelectric power stations. The first such station was built in Wisconsin in 1882. In a hydraulic turb...
Read more
|
|
|
jeep
jeep small, durable automotive vehicle intended for heavy-duty applications and sometimes provided with the capability of delivering driving power to all four wheels. The last feature allows superior performance on slippery surfaces such as those formed by ice or mud. The earliest jeeps were used b...
Read more
|
|
|
Robert Schuller
Robert Schuller 1926-, American Protestant minister and television evangelist, b. Alton, Iowa. Schuller gained attention (1955) when he used a drive-in theater to meet the needs of his expanding Los Angeles congregation. His Reformed Church in America congregation is now housed in a multimillion do...
Read more
|
|
|
Clonmel
Clonmel , town (1991 pop. 15,562), administrative center of South Riding, Co. Tipperary, S Republic of Ireland, on the Suir River. Footwear, cider, enamelware, tubular steel furniture, baby carriages, computer disk drives, and canned meat are produced in Clonmel. It is also a tourist center with goo...
Read more
|
|
|
flywheel
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 where a power source such as a piston engine exerts an uneven torque on the shaft or where the load is ...
Read more
|
|
|
lathe
lathe , machine tool for holding and turning metal, wood, plastic, or other material against a cutting tool to form a cylindrical product or part. It also drills, bores, polishes, grinds, makes threads, and performs other operations. Its principal parts are the headstock (attached to the bed or base...
Read more
|
|
|
tugboat
tugboat small, strongly built vessel, used to guide large oceangoing ships into and out of port and to tow barges, dredging and salvage equipment, and disabled vessels. Tugboats range in overall length from 70 to 210 ft (21-64 m), and their engines generate from 750 to 3,000 horsepower. Steam power...
Read more
|
|
pile
pile post of timber, steel, or concrete used to support a structure. Vertical piles, or bearing piles, the most common form, are generally needed for the foundations of bridges, docks, piers, and buildings. Slender tree trunks, roughly trimmed and about 10 in. (25.4 cm) thick at the butt, are used ...
Read more
|
|
locomotive
locomotive vehicle used to pull a train of unpowered railroad cars.
Types of Locomotives
The steam-powered locomotive played a key role during the development and golden age of railroading, but, despite its long and picturesque history, it has been superseded in developed nations by ele...
Read more
|
