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Guelphs and Ghibellines

(Encyclopedia) Guelphs and GhibellinesGuelphs and Ghibellinesgwĕlfs, gĭbˈəlēnz, –lĭnz [key], opposing political factions in Germany and in Italy during the later Middle Ages. The names were used to…

DK Science: Solids

CHANGING SHAPESHAPE MEMORY METALStretchSTRENGTHCRYSTALLINE STRUCTUREFIND OUT MORESolids are one of the three states of matter and, unlike liquids or gases, they have a definite shape that is not…

DK Science: Computers

HARDWARESOFTWAREFIND OUT MOREA computer is an electronic machine that obeys instructions telling it how to present information in a more useful form. Its HARDWARE is the actual machine, including…

Consumers' League, National

(Encyclopedia) Consumers' League, National, organization designed to promote better conditions among workers by encouraging the purchase of articles made and sold under improved working conditions.…

Ficino, Marsilio

(Encyclopedia) Ficino, MarsilioFicino, Marsiliomärsēˈlyō fēchēˈnō [key], 1433–99, Italian philosopher. Under the patronage of Cosimo de' Medici, Ficino became the most influential exponent of…

Kahn, Julius

(Encyclopedia) Kahn, JuliusKahn, Juliuskän [key], 1861–1924, American legislator, b. Germany. He arrived (1866) in California as a child. He studied law in San Francisco, was elected (1892) to the…

Macchiaioli, I

(Encyclopedia) Macchiaioli, IMacchiaioli, Iē mäk-kēīôˈlē [key], a group of Italian artists active primarily in Florence c.1855–65. Influenced by members of the Barbizon school, the Macchiaioli…

satin

(Encyclopedia) satin, lustrous silk in which the filling is so arranged as to bind the warp as seldom as possible and so spaced that practically nothing shows but the warp. Satin was first woven by…

Gentileschi, Artemisia

(Encyclopedia) Gentileschi, ArtemisiaGentileschi, Artemisiaärˌtāmēˈzhə jānˌtēlĕsˈkē [key], c.1597–c.1652, Tuscan painter, daughter and pupil of Orazio Gentileschi, b. Rome. She studied with her…