(Encyclopedia) Benedict's solution, deep-blue alkaline solution used to test for the presence of the aldehyde functional group, −CHO. The substance to be tested is heated with Benedict's solution;…
(Encyclopedia) Scoresby, WilliamScoresby, Williamskôrzˈbē [key], 1789–1857, English arctic explorer and scientist. He made yearly voyages (1803–22) to Greenland, at first on his father's whaler,…
(Encyclopedia) Rocky Mountain spotted fever, infectious disease caused by a rickettsia. The bacterium is harbored by wild rodents and other animals and is carried by infected ticks of several species…
(Encyclopedia) Romberg, SigmundRomberg, Sigmundrŏmˈbûrg [key], 1887–1951, Hungarian-American composer, educated in Vienna. He came to the United States in 1909, played in restaurant and café…
(Encyclopedia) Rousseau, ThéodoreRousseau, Théodoretāōdôrˈ [key]Rousseau, Théodore r&oomacr;sōˈ [key], 1812–67, French landscape painter; leader of the Barbizon school. He first received…
(Encyclopedia) redbud or Judas tree, name for trees and shrubs of the genus Cercis, handsome plants of the family Leguminosae (pulse family), covered along the branches in the early spring with deep…
(Encyclopedia) Stiegel, Henry WilliamStiegel, Henry Williamstēˈgəl [key], 1729–85, American iron and glass manufacturer, b. Germany. He emigrated to America, arriving in Philadelphia (1750). In 1758…
COASTAL EROSIONGLACIAL EROSIONWIND EROSIONCHEMICAL WEATHERINGMASS MOVEMENTFIND OUT MOREThe process that breaks up and carries away the rocks and soils that make up the Earth’s surface is called…
