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Clark, Kenneth MacKenzie

(Encyclopedia)Clark, Kenneth MacKenzie (Lord Clark of Saltwood), 1903–83, English art historian, studied Oxford. After working with Bernard Berenson in Florence, Clark was keeper of the department of fine art at ...

Filson, John

(Encyclopedia)Filson, John, c.1753–1788, Kentucky pioneer, b. Chester co., Pa. In 1783 he acquired land in Kentucky, taught school, and wrote Discovery, Settlement, and Present State of Kentucke (1784). This firs...

Numbers

(Encyclopedia)Numbers, book of the Bible, fourth of the five books of the Law (the Pentateuch or Torah) ascribed by tradition to Moses. Numbers begins at Sinai and ends in Moab on the eve of the Hebrews' entry into...

Ælfric

(Encyclopedia)Ælfric ălˈfrĭk [key], c.955–1020, English writer and Benedictine monk. He was the greatest English scholar during the revival of learning fostered by the Benedictine monasteries in the second ha...

cooking

(Encyclopedia)cooking, the process of using heat to prepare foods for consumption. Many common cooking methods involve the use of oil. Frying is cooking in hot oil; sautéing is cooking in a small amount of oil; st...

beryllium

(Encyclopedia)beryllium bərĭlˈēəm [key] [from beryl ], metallic chemical element; symbol Be; at. no. 4; at. wt. 9.01218; m.p. about 1,278℃; b.p. 2,970℃ (estimated); sp. gr. 1.85 at 20℃; valence +2. Ber...

Lambert, Johann Heinrich

(Encyclopedia)Lambert, Johann Heinrich yōˈhän hīnˈrĭkh lämˈbĕrt [key], 1728–77, German-French philosopher and scientist, b. Alsace. He developed many basic concepts in mathematics, including that of the ...

kaolinite

(Encyclopedia)kaolinite kāˈəlĭnīt [key], clay mineral crystallizing in the monoclinic system and forming the chief constituent of china clay and kaolin. It is a hydrous aluminum silicate commonly formed by the...

cochineal

(Encyclopedia)cochineal kŏchĭnēlˈ, kŏchˈĭnēl [key], natural dye obtained from an extract of the bodies of the females of the cochineal bug (Dactylopius confusus) found on certain species of cactus, especial...

Fischer-Tropsch process

(Encyclopedia)Fischer-Tropsch process fĭshˈər-trōpsh [key], method for the synthesis of hydrocarbons and other aliphatic compounds. Synthesis gas, a mixture of hydrogen and carbon monoxide, is reacted in the pr...