Related topics from Britannicatransmission
in mechanical engineering, a device interposed between a source of power and a specific application for the purpose of adapting one to the other. Most mechanical transmissions function as rotary ...
automatic transmission
arrangement of gears, brakes, clutches, a fluid drive, and governing devices that automatically changes the speed ratio between the engine and the wheels of an automobile. Since its introduction in ...
hydraulic transmission
device employing a liquid to transmit and modify linear or rotary motion and linear or turning force (torque). There are two main types of hydraulic power transmission systems: hydrokinetic, such as ...
Tenneco Inc.
diversified American industrial corporation, with major interests in natural-gas pipelines and the construction of heavy equipment. It was also formerly a large producer of petroleum. Headquarters ...
truck
Automatic transmissions for trucks have been available since the 1950s. For some diesels it is necessary to operate the engine within a relatively narrow speed range. This requires a large number of ...
leprosy
In the many centuries since leprosy was first described, a number of theories have been proposed to explain how the bacillus is transmitted. In the 19th century leprosy was believed to be a ...
AIDS
HIV is transmitted by the direct transfer of bodily fluids, such as blood and blood products, semen and other genital secretions, or breast milk, from an infected person to an uninfected person. The ...
automobile
The gasoline engine must be disconnected from the driving wheels when it is started and when idling. This characteristic necessitates some type of unloading and engaging device to permit gradual ...
plant disease
With the exception of tobacco mosaic virus, relatively few viruses or viroids are spread extensively in the field by contact between diseased and healthy leaves.nervous system
This method of transmitting nerve impulses, while far less common than chemical transmission, occurs in the nervous systems of invertebrates and lower vertebrates, as well as in the central nervous ...
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