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wedge

(Encyclopedia)wedge, piece of wood or metal thick at one end and sloping to a thin edge at the other; an application of the inclined plane. It is employed in separating two objects from each other or in separating ...

temperature

(Encyclopedia)CE5 Temperature scales temperature, measure of the relative warmth or coolness of an object. Temperature is measured by means of a thermometer or other instrument having a scale calibrated in unit...

ignition

(Encyclopedia)CE5 Ignition system ignition, apparatus for igniting a combustible mixture. The German engineer Nikolaus A. Otto, in his first gas engine, used flame ignition; another method was heating a metal t...

Taylor, Joseph Hooton, Jr.

(Encyclopedia)Taylor, Joseph Hooton, Jr., 1941–, American astrophysicist, b. Philadelphia, Ph.D. Harvard, 1968. Taylor was a professor at the Univ. of Massachusetts at Amherst from 1969 to 1980, when he joined th...

dative

(Encyclopedia)dative dāˈtĭv [key] [Lat.,=giving], in Latin grammar, the case typically used to refer to an indirect object, i.e., a secondary recipient of an action. For example, him in I gave him a book is tran...

Melilla

(Encyclopedia)Melilla mālēˈlyä [key], autonomous city (2011 pop. 81,323), 5 sq mi (13 sq km), Spanish possession on the Mediterranean coast of Morocco, NW Africa. Administered directly by the Spanish government...

Hampton Roads Peace Conference

(Encyclopedia)Hampton Roads Peace Conference, meeting held on Feb. 3, 1865, on board the Union transport River Queen in Hampton Roads, Va., with the object of ending the Civil War. President Lincoln and Secretary o...

spectral class

(Encyclopedia)CE5 spectral class, in astronomy, a classification of the stars by their spectrum and luminosity. In 1885, E. C. Pickering began the first extensive attempt to classify the stars spectroscopically....

serine

(Encyclopedia)CE5 serine sĕrˈēn [key], organic compound, one of the 20 amino acids commonly found in animal proteins. Only the l-stereoisomer appears in mammalian protein. It is not essential to the human die...

chiton

(Encyclopedia)CE5 A. Dorsal view of a chiton, representative mollusk of the class Amphineura B. Internal anatomy of a chiton chiton kīˈtən [key], common name for rock-clinging marine mollusks of the class Po...