(Encyclopedia) Boleslaus IBoleslaus Ibōˈləslôs [key], c.966–1025, Polish ruler (992–1025), the first to call himself king; also called Boleslaus the Brave. He succeeded his father, Mieszko I, as duke…
(Encyclopedia) book clubs. As a phenomenon in American cultural life, book clubs have made an impact in two periods of history. During the 18th and 19th cent. book clubs were formed for the purposes…
(Encyclopedia) vendettavendettavĕndĕtˈə [key] [Ital.,=vengeance], feud between members of two kinship groups to avenge a wrong done to a relative. Although the term originated in Corsica, the custom…
(Encyclopedia) verb, part of speech typically used to indicate an action. English verbs are inflected for person, number, tense and partially for mood; compound verbs formed with auxiliaries (e.g.,…
(Encyclopedia) vibration, in physics, commonly an oscillatory motion—a movement first in one direction and then back again in the opposite direction. It is exhibited, for example, by a swinging…
(Encyclopedia) molecular weight, weight of a molecule of a substance expressed in atomic mass units (amu). The molecular weight may be calculated from the molecular formula of the substance; it is…
(Encyclopedia)
CE5
The Hertzsprung-Russell diagram shows the relation between the luminosity and surface temperature (which is related to spectral class, or color) of the stars in the Milky Way.…
(Encyclopedia) food preservation, methods of preparing food so that it can be stored for future use. Because most foods remain edible for only a brief period of time, people since the earliest ages…
(Encyclopedia) photometryphotometryfōtŏmˈətrē [key], branch of physics dealing with the measurement of the intensity of a source of light, such as an electric lamp, and with the intensity of light…
(Encyclopedia) tiger, large carnivore of the cat family, Panthera tigris, found in the forests of Asia. There are six subspecies of P. tigris: Amur or Siberian, Sumatran, Malayan, North Indochinese,…
