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ergonomics

(Encyclopedia)ergonomics, the engineering science concerned with the physical and psychological relationship between machines and the people who use them. The ergonomicist takes an empirical approach to the study o...

flint, mineral

(Encyclopedia)flint, variety of quartz that commonly occurs in rounded nodules and whose crystal structure is not visible to the naked eye. Flint is dark gray, smoky brown, or black in color; pale gray flint is cal...

Appel, Karel

(Encyclopedia)Appel, Karel käˈrəl äpˈəl [key], 1921–2006, Dutch painter. A member of CoBrA, the European group of the late 1940s to early 1950s allied with abstract expressionism, Appel reacted against the ...

meadowlark

(Encyclopedia)meadowlark, common North American meadow bird of the family Icteridae, also called meadow starling. Unlike other members of the family, which comprises blackbirds, grackles, orioles, and others, the m...

molasses

(Encyclopedia)molasses, sugar byproduct, the brownish liquid residue left after heat crystallization of sucrose (commercial sugar) in the process of refining. Molasses contains chiefly the uncrystallizable sugars a...

Modersohn-Becker, Paula

(Encyclopedia)Modersohn-Becker, Paula mōˈdərzōnˌ-bĕkˈər [key], 1876–1907, German painter. After studying in London and Berlin, she was greatly influenced by her experience at Worpswede, an artists' colony...

Nikolais, Alwin

(Encyclopedia)Nikolais, Alwin nĭkˌəlīˈ [key], 1910–93, American dancer and choreographer, b. Southington, Conn. Nikolais became director of his own dance company in New York City in 1949. He made ingenious u...

Norwich terrier

(Encyclopedia)Norwich terrier, breed of small, sturdy terrier developed in England in the second half of the 19th cent. It stands about 10 in. (25.4 cm) high at the shoulder and weighs about 11 lb (4.9 kg). The har...

Australian cattle dog

(Encyclopedia)Australian cattle dog, breed of medium-sized herding dog developed in Australia. It stands from 18 to 20 in. (45.7–50.8 cm) high at the shoulder and weighs about 33 lb (15 kg). Its double coat consi...

ocher

(Encyclopedia)ocher ōˈkər [key], mixture of varying proportions of iron oxide and clay, used as a pigment. It occurs naturally as yellow ocher (yellow or yellow-brown in color), the iron oxide being limonite, or...