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ultraviolet radiation

(Encyclopedia)ultraviolet radiation, invisible electromagnetic radiation between visible violet light and X rays; it ranges in wavelength from about 400 to 4 nanometers and in frequency from about 1015 to 1017 hert...

counterfeiting

(Encyclopedia)counterfeiting, manufacturing spurious coins, paper money, or evidences of governmental obligation (e.g., bonds) in the semblance of the true. There must be sufficient resemblance to the genuine artic...

Ensor, James Ensor, Baron

(Encyclopedia)Ensor, James Ensor, Baron jĕms äNsôrˈ [key], 1860–1949, Belgian painter and etcher. Ensor's imagery reflected one of the most bizarre and powerful visions of his era. He left his native Ostend t...

Titian

(Encyclopedia)Titian tĭshˈən [key], c.1490–1576, Venetian painter, whose name was Tiziano Vecellio, b. Pieve di Cadore in the Dolomites. Of the very first rank among the artists of the Renaissance, Titian was ...

Roman art

(Encyclopedia)Roman art, works of art produced in ancient Rome and its far-flung provinces. The continued striving after three-dimensional illusionist effects revealed in the various phases of painting was dup...

Dalton, John

(Encyclopedia)Dalton, John dôlˈtən [key], 1766–1844, English scientist. He revived the atomic theory (see atom), which he formulated in the first volume of his New System of Chemical Philosophy (2 vol., 1808�...

Dandie Dinmont terrier

(Encyclopedia)Dandie Dinmont terrier dănˈdē dĭnˈmŏnt [key], breed of hardy, long-bodied terrier developed in England and Scotland and first recorded as a distinct type in the very early 18th cent. It stands f...

copperhead

(Encyclopedia)copperhead, poisonous snake, Ancistrodon contortrix, of the E United States. Like its close relative, the water moccasin, the copperhead is a member of the pit viper family and detects its warm-bloode...

English foxhound

(Encyclopedia)English foxhound, breed of medium-sized, swift hound perfected in England in the 17th and 18th cent. It stands from 21 to 25 in. (53.3–63.5 cm) high at the shoulder and weighs from 60 to 70 lb (27.2...

indigo

(Encyclopedia)indigo [Span.; from Lat.,=Indian], important blue dyestuff used in printing inks and for vat dyeing of cotton (see dye). It was anciently produced in India and was known in Egypt, probably c.1600 b.c....