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recombination

(Encyclopedia)recombination, process of “shuffling” of genes by which new combinations can be generated. In recombination through sexual reproduction, the offspring's complete set of genes differs from that of ...

Redgrave

(Encyclopedia)Redgrave, family of English actors. Sir Michael Redgrave, 1908–85, b. Bristol, Eng., was an actor, director, and writer. After his first professional performance in Counsellor-at-Law (1934), he appe...

Barnum, P. T.

(Encyclopedia)Barnum, P. T. (Phineas Taylor Barnum) fĭnˈēəs, bärˈnəm [key], 1810–91, American showman, b. Bethel, Conn. As a youth Barnum worked at diverse sales jobs and managed a boardinghouse. He made h...

Slovak literature

(Encyclopedia)Slovak literature. The earliest documents written in the Slovak language date from the 15th cent. Following the Czech Hussite movement, many Czech cultural leaders emigrated to Slovakia (16th cent.); ...

diary

(Encyclopedia)diary [Lat.,=day], a daily record of events and observations. As distinguished from memoir (an account of events placed in perspective by the author long after they have occurred), the diary derives i...

communications satellite

(Encyclopedia)communications satellite artificial satellite that functions as part of a global radio-communications network. Echo 1, the first communications satellite, launched in 1960, was an instrumented inflat...

Japanese music

(Encyclopedia)Japanese music, the highly eclectic musical culture of the Japanese islands. Over the years, Japan has borrowed musical instruments, scales, and styles from many neighboring areas. The indigenous musi...

navigation

(Encyclopedia)navigation, science and technology of finding the position and directing the course of vessels and aircraft. The next great revolution in navigation occurred in the 20th cent., when radio signals ...

nuclear reactor

(Encyclopedia)CE5 Power reactor system nuclear reactor, device for producing controlled release of nuclear energy. Reactors can be used for research or for power production. A research reactor is designed to pr...

moss, in botany

(Encyclopedia)CE5 Life cycle of a moss: A germinating spore forms a transitory branching structure on the soil surface, which develops into the conspicuous gametophyte, the familiar moss plant. Eggs and sperm ar...