Search
Search results
Displaying 331 - 340
bearing
(Encyclopedia) bearing, machine part designed to reduce friction between moving parts or to support moving loads. There are two main kinds of bearings: the antifriction type, such as the roller…hypersensitivity
(Encyclopedia) hypersensitivity, heightened response in a body tissue to an antigen or foreign substance. The body normally responds to an antigen by producing specific antibodies against it. The…nebula
(Encyclopedia) nebulanebulanĕbˈy&oobreve;lə [key] [Lat.,=mist], in astronomy, observed manifestation of a collection of highly rarefied gas and dust in interstellar space. Prior to the 1960s this…Chernobyl
(Encyclopedia) ChernobylChernobylchĭrnōˈbyēl [key], Ukr. Chornobyl, abandoned city, N Ukraine, near the Belarus border, on the Pripyat River. Ten miles (16 km) to the north, in the town of Pripyat,…drill, tool
(Encyclopedia) drill, tool used to create a hole, usually in some hard substance, by its rotary or hammering action. Many different tools make up the drill family. The awl is a pointed instrument…flax
(Encyclopedia) flax, common name for members of the Linaceae, a family of annual herbs, especially members of the genus Linum, and for the fiber obtained from such plants. The flax of commerce (…boron
(Encyclopedia) boronboronbōrˈŏn [key] [New Gr. from borax], chemical element; symbol B; at. no. 5; interval in which at. wt. ranges 10.806–10.821; m.p. about 2,300℃; sublimation point about 2,550℃;…substance
(Encyclopedia) substance, in philosophy, term used to denote the changeless substratum presumed in some philosophies to be present in all being. Aristotle defined substance as that which possesses…sperm
(Encyclopedia) sperm or spermatozoonspermspûrˌmətəzōˈən, –zōˈŏn [key], in biology, the male gamete (sex cell), corresponding to the female ovum in organisms that reproduce sexually. In higher animals…spring, in mechanics
(Encyclopedia) spring, in mechanics, any of several elastic devices used variously to store and to furnish energy, to absorb shock, to sustain the pressure between contacting surfaces, and to resist…Trending
Here are the facts and trivia that people are buzzing about.
