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Homer, Winslow

(Encyclopedia)Homer, Winslow, 1836–1910, American landscape, marine, and genre painter. Homer was born in Boston, where he later worked as a lithographer and illustrator. In 1861 he was sent to the Civil War batt...

stearin

(Encyclopedia)stearin stērˈĭn [key], fat that is the triglyceride of stearic acid, CH3(CH2)16CO2H, i.e., the tristearate ester of glycerol. It is a white crystalline solid at ordinary temperatures and is insolub...

waterproof and water-repellent fabrics

(Encyclopedia)waterproof and water-repellent fabrics, materials treated with various substances so as to make them impervious to water. Permanent waterproofing is achieved by first coating fabrics with rubber or pl...

latex

(Encyclopedia)latex, emulsion of a polymer (e.g., rubber) in water (see colloid). Natural latexes are produced by a number of plants, are usually white in color, and often contain, in addition to rubber, various gu...

mignonette

(Encyclopedia)mignonette mĭnˌyənĕtˈ [key], common name for some members of the Resedaceae, a small family of herbs and a few shrubs inhabiting arid regions. The main genus, the mignonettes (genus Reseda), chie...

Zorn, Anders Leonhard

(Encyclopedia)Zorn, Anders Leonhard änˈdərs lāˈo͞onärd sôrn [key], 1860–1920, Swedish painter, etcher, and sculptor. Zorn's early and phenomenal popularity was sustained throughout his career as a portrai...

food pyramid

(Encyclopedia)CE5 The U.S. Department of Agriculture used (1992–2005) this pyramid to show the basis of a healthy diet, dividing foods into five nutritional groups and recommending the number of daily average ...

hydrolysis

(Encyclopedia)hydrolysis hīdrŏlˈĭsĭs [key], chemical reaction of a compound with water, usually resulting in the formation of one or more new compounds. The most common hydrolysis occurs when a salt of a weak ...

Ružička, Leopold Stephen

(Encyclopedia)Ružička, Leopold Stephen or Lavoslav Stjepan 1887–1976, Swiss chemist, b. Croatia (then in Austria-Hungary), Dr.Ing. Technische Hochschule, Karlsruhe, Germany, 1910. Ružička was a researcher at ...

Brill

(Encyclopedia)Brill or Bril, Flemish painters, brothers. Mattys Brill mäˈtīs [key], 1550–83, went to Rome early in his career and executed frescoes for Gregory XIII in the Vatican. Paul Brill, 1554–1626, pro...