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Burbidge, Margaret

(Encyclopedia)Burbidge, Margaret, 1925–2020, Anglo-American astronomer, b. England as Eleanor Margaret Peachey. Burbidge; her husband, Geoffrey Burbidge; William Fowler; and Sir Fred Hoyle showed (1956) how heavi...

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...

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...

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...

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...

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...

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...

drum, in music

(Encyclopedia)CE5 Drums drum, in music, percussion instrument, known in various forms and played throughout the world and throughout history. Essentially a drum is a frame over which one or more membranes or sk...

complex variable analysis

(Encyclopedia)complex variable analysis, branch of mathematics that deals with the calculus of functions of a complex variable, i.e., a variable of the form z=x+iy, where x and y are real and i=−1 (see number). A...

computer program

(Encyclopedia)computer program, a series of instructions that a computer can interpret and execute; programs are also called software to distinguish them from hardware, the physical equipment used in data processin...