(from the article "rocket and missile system") A development of the U.S. Army was the Calliope, a 60-tube launching projector for 4.5-inch rockets mounted on a Sherman tank. The launcher was mounted on the tank's gun turret, ...
in music, a steam-whistle organ with a loud, shrill sound audible miles away; it is used to attract attention for circuses and fairs. It was invented in the United States ... [1 Related Articles]
(from the article "hummingbird") ...and hovering flight. It varies with the size of the bird-the larger the bird, the lower the rate. Consequently, the smallest hummingbirds have extremely rapid wing-beat rates. In Calliphlox amethystina, ...
(from the article "calendar") The Metonic cycle was improved by both Callippus and Hipparchus. Callippus of Cyzicus (c. 370-300 BC) was perhaps the foremost astronomer of his day. He formed what has been called ...
(from the article "Alcmaeon") ...had never shone at the time he slew his mother. Such a spot he found at the mouth of the Achelous River, where an island had recently been formed. There ...
genus of shrubs and trees, of the family Myrtaceae, native to Australia. They have spikes of showy flowers and are commonly called bottlebrushes. The plants are often cultivated outdoors in ...
ancient Greek historian best known for his influential history of Greece. Callisthenes was appointed to attend Alexander the Great as historian of his Asiatic expedition on the recommendation of his ... [2 Related Articles]
in Greek mythology, a nymph, or else a daughter of either Lycaon of Arcadia or of Nycteus or Ceteus. Callisto was one of the goddess Artemis' huntress companions and swore ... [1 Related Articles]
outermost of the four large moons (Galilean satellites) discovered around Jupiter by the Italian astronomer Galileo in 1610. It was probably also discovered independently that same year by the German ... [3 Related Articles]
patriarch of Constantinople, theologian, and hagiographer, an advocate of a Byzantine school of mystical prayer that he upheld by the authority of his office and by his writings.
(from the article "cypress pine") any of the ornamental and timber shrubs and trees of two closely related genera (Callitris and Widdringtonia) of the family Cupressaceae.distribution
(from the article "blow fly") ...spines. These larvae attack livestock and other animals, including humans. The true screwworm (Cochliomyia hominivorax; formerly, Callitroga americana) and the secondary screwworm (Callitroga macellaria) develop in decaying flesh in surface ...
(from the article "Devonian Period") ...branches, is represented by Hyenia and Pseudobornia. Pteropsids also appeared in the Devonian. Primitive gymnosperms are known, and trunks of Archaeopteris ...
French printmaker who was one of the first great artists to practice the graphic arts exclusively. His innovative series of prints documenting the horrors of war greatly influenced the socially ... [5 Related Articles]
uppermost of the four divisions of the Middle Jurassic Series, representing all rocks formed worldwide during the Callovian Age, which occurred between 164.7 million and 161.2 million years ago during ...
American bandleader, singer, and all-around entertainer known for his exuberant performing style and for leading one of the most highly regarded big bands of the swing era. [5 Related Articles]
(from the article "Poaceae") ...grass seeds. The backs or tips of glumes and lemmas may develop one or more awns, needlelike structures that may catch on animal fur. The base of the spikelet may ...
in osteology, bony and cartilaginous material forming a connecting bridge across a bone fracture during repair. Within one to two weeks after injury, a provisional callus forms, enveloping the fracture ... [2 Related Articles]
in dermatology, small area of thickened skin, caused by continued friction, pressure, or other physical or chemical irritants. In response to mild but repeated injury, the cells of the epidermis, ...
(from the article "horticulture") Callus-tissue culture-a very specialized technique that involves growth of the callus, followed by procedures to induce organ differentiation-has been successful with a number of plants including carrot, asparagus, and tobacco. ...
Canadian journalist, author, television personality, and activist was a spirited organizer who founded a hostel for homeless youth, a shelter for battered women, and a hospice for AIDS sufferers and ...
(from the article "ocean") Inside the Great Barrier Reef, on the shallow continental shelf of Queensland, the oxygen content of the water is high, exceeding 90 percent saturation most of the time; in deeper ...
(from the article "education") At the calmecac, the school for native learning where apprenticeship started at the age of 10, the history of Mexico and the content of the historical codices were systematically taught. ...
French bacteriologist, pupil of Louis Pasteur, and codeveloper with Camille Guerin of the tuberculosis vaccine Bacillus Calmette-Guerin (BCG). He also described a diagnostic test for tuberculosis, known as Calmette's reaction. [3 Related Articles]
(from the article "Caillaux, Joseph") ...compromise that brought a massive public attack upon his patriotism. The hostility of a Senate investigating commission proved so embarrassing that he was forced to resign (January 1912). Gaston Calmette, ...
(from the article "Italian literature") ...Paduan dialect, treat the problems of the oppressed peasant with realism and profound seriousness. Another dialect playwright of the same century, now also more widely appreciated, is the Venetian Andrea ...
(from the article "Switzerland") Area: 41,284 sq km (15,940 sq mi) | Population (2007 est.): 7,607,000 | Capital: Bern | Head of state and government: President Micheline Calmy-Rey |
(from the article "bryophyte") ...usually opening by longitudinal lines; sporangium releasing all spores and elaters at the time it opens; calyptra remaining at base when seta elongates.Leaves flattened and in three rows on ...
(from the article "conifer") ...about 20; leaves vary in shape from scales to clawlike or needlelike and are spirally arranged or in opposite pairs or whorls of 3; several genera, usually referred to as ...
(from the article "Italian literature") ...Sicilian aristocrat Lucio Piccolo, cousin of novelist Giuseppe Tomasi di Lampedusa, who in 1954 forwarded Piccolo's then unpublished poems to an appreciative Eugenio Montale; the Calabrian Symbolist Lorenzo Calogero, who ...
a very heavy, soft, white, sweetish-tasting halide mineral, formed by the alteration of other mercury minerals, such as cinnabar or amalgams. Calomel is found together with native mercury, cinnabar, calcite, ... [2 Related Articles]
(from the article "acid-base reaction") ...&rlarr2; B + H3O+. For example, a hydrogen electrode (or more commonly a glass electrode, which responds in the same way) together with a reference electrode, commonly the calomel electrode, ...
French statesman whose efforts to reform the structure of his nation's finance and administration precipitated the governmental crisis that led to the French Revolution of 1789. [3 Related Articles]
city on Dagatdagatan Lagoon (Manila Bay), central Luzon, Philippines, adjacent to northern Manila. Founded in 1762, it became a municipality in 1815. Caloocan suffered much damage during World War II. ...
genus of about four species of terrestrial orchids, family Orchidaceae, found in bogs and swamps of North America and the West Indies. The lip of the grass-pink, or swamp-pink (Calopogon ...
explanation, widely accepted in the 18th century, of the phenomena of heat and combustion in terms of the flow of a hypothetical weightless fluid known as caloric. The idea of ... [3 Related Articles]
a unit of energy or heat variously defined. The calorie was originally defined as the amount of heat required at a pressure of 1 standard atmosphere to raise the temperature ... [4 Related Articles]
(from the article "coal utilization") Calorific value, measured in British thermal units or megajoules per kilogram, is the amount of chemical energy stored in a coal that is released as thermal energy upon combustion. It ...
(from the article "pollination") ...the smelly, receptive stage, and cross-pollination again ensues. Superb timing mechanisms underlie these events. The heat-generating metabolic process in the inflorescence is triggered by a hormone, calorigen, originating in the ...
device for measuring the heat developed during a mechanical, electrical, or chemical reaction, and for calculating the heat capacity of materials. [1 Related Articles]
(from the article "physiology") ...and the work performed during muscle contraction must originate in similar processes, and that fuel in the equation above is a source of potential energy. Early in the 20th century ...
(from the article "Mercury") Caloris is one of the youngest of the large multiring basins, at least on the observed portion of Mercury. It probably was formed at the same time as the last ...
(from the article "fungus") ...black and shiny; some with irregular stromata; included in subclass Sordariomycetidae; examples of genera include Camarops and Apiocamarops.Saprobic; ascospores small; included in subclass Sordariomycetidae; examples of genera include Calosphaeria, ...
genus of arboreal (tree-dwelling) lizards of the family Agamidae, remarkable for their extreme colour changes when excited. It is found in gardens and forests of India, Sri Lanka, Southeast Asia, ...
(from the article "akund floss") downy seed fibre obtained from Calotropis procera and C. gigantea, plants of the Apocynaceae family. The plants are native to southern Asia and Africa and were introduced to South America ...
(from the article "akund floss") downy seed fibre obtained from Calotropis procera and C. gigantea, plants of the Apocynaceae family. The plants are native to southern Asia and Africa and were introduced to South America ...
early photographic technique invented by William Henry Fox Talbot of Great Britain in the 1830s. In this technique, a sheet of paper coated with silver chloride was exposed to light ... [4 Related Articles]
(from the article "The Environment") Peter Calow, a British scientist, was appointed director of Denmark's Environmental Assessment Institute in November 2004. The post was formerly held by Bjorn Lomborg, who had generated controversy in his ...
(from the article "pre-Columbian civilizations") A number of households, varying from a few score to several hundred, were organized into an internally complex corporate group referred to as a calpulli by the Aztec and translated ...
(from the article "Julius Caesar") ...He persuades the reluctant Brutus-Caesar's trusted friend-to join them. Brutus, troubled and sleepless, finds comfort in the companionship of his noble wife, Portia. Caesar's wife, Calpurnia, alarmed by prophetic dreams, ...
(from the article "Charles II") ...Nicholas IV as intermediaries. Charles promised to give up his claim to Sicily, but, once released, the Pope absolved him from his promise and the war for Sicily continued. It ...
city, central Sicily, Italy. The city lies in the mountains west of the Salso River at an elevation of 1,929 feet (588 m). It is sometimes identified with the ancient ...
(from the article "Chevron Corporation") Company geologists discovered vast quantities of oil in Bahrain and Saudi Arabia in the early 1930s, and in 1936 a marketing enterprise was formed-the Caltex group of companies, owned jointly ...
(from the article "Edinburgh") At the east end of Princes Street, Calton Hill rises above the central government office of St. Andrew's House (1939) and the adjacent Royal High School (1825-29), considered for a ...
either of two ancient Indian dynasties. The Western Calukyas ruled as emperors in the Deccan (i.e., peninsular India) from AD 543 to 757 and again from about 975 to about ... [6 Related Articles]
(from the article "India") ...who are associated with Vatapi in the 6th century. The Calukyas controlled large parts of the Deccan for two centuries. There were many branches of the family, the most important ...
city, Cook county, northeastern Illinois, U.S. A southern suburb of Chicago, Calumet City lies on the Illinois-Indiana state border and along the Little Calumet River, southeast of Lake Calumet. The ...
heavily industrialized area, mostly in Lake county, northwestern Indiana, U.S. It lies along the southern shore of Lake Michigan, adjacent to southeastern Chicago. Following the establishment of steel plants in ...
(from the article "Chicago") ...maritime traffic. A second important body of water, Lake Calumet, is located in the industrial southeastern part of the city; it is connected to the Chicago Sanitary and Ship Canal ...
North American Indian tribe that inhabited the southwest coast of Florida from Tampa Bay to Cape Sable and Cape Florida, together with all the outlying keys. According to some authorities ... [1 Related Articles]
(from the article "Morris dance") ...examples are the Perchten dancer-masqueraders of Austria, the ritual dances such as the moriscas (or moriscos), santiagos, and matachinas of the Mediterranean and Latin America, and the calusari of Romania. ...
(from the article "nuclear weapon") ...achieved by Fermi and his group on Dec. 2, 1942, in the squash court under the stands of the university's Stagg Field. At Berkeley, the cyclotron, converted into a mass ...
(from the article "Basse-Normandie") region of France encompassing the northwestern departements of Orne, Calvados, and Manche. It is bounded by the regions of Haute-Normandie to ...
(from the article "Lycoperdaceae") Calvatia is a genus of about 35 species that are especially common in temperate regions. The giant puffball (C. gigantea), edible while young and white inside, is found in late ...
county, south-central Maryland, U.S., consisting of a tidewater peninsula lying between the Patuxent River to the west and south and Chesapeake Bay to the east. Calvert Cliffs State Park towers ...
(from the article "physical culture") Lifting various weighted objects had been growing in popularity since the late 19th century, mainly due to the efforts of Alan Calvert, a Philadelphia businessman who was inspired by Sandow's ...
(from the article "Schliemann, Heinrich") ...the Santorin eruption to 2000 BC, which suggested a great antiquity for Fouque's finds and the existence of prehistoric cultures hitherto unknown in the Aegean. The English archaeologist Frederick Calvert ...
British actress (b. Feb. 18, 1915, London, Eng.-d. Oct. 8, 2002, London), brought grace and elegance to British melodramas of the 1940s. Originally a stage actress, she gained renown in ...
American newspaper comic strip that ran from 1985 to 1995, chronicling the high jinks of Calvin, a six-year-old boy, and his pet tiger, Hobbes. Calvin and Hobbes was renowned for ...
(from the article "Calvin, Melvin") In 1942 Calvin married Genevieve Jemtegaard, with later Nobel chemistry laureate Glenn T. Seaborg as best man. The married couple collaborated on an interdisciplinary project to investigate the chemical factors ...
theologian and ecclesiastical statesman. He was the leading French Protestant Reformer and the most important figure in the second generation of the Protestant Reformation. His interpretation of Christianity, advanced above ... [33 Related Articles]
(from the article "livestock farming") Calving of beef cows is arranged to occur in the spring months to take advantage of the large supplies of cheap and high-quality pasture forages. Fall calving is less common ...
(from the article "glacier") The ice sheets lose material by several processes, including surface melting, evaporation, wind erosion (deflation), iceberg calving, and the melting of the bottom surfaces of floating ice shelves by warmer ...
the theology advanced by John Calvin, a Protestant Reformer in the 16th century, and its development by his followers. The term also refers to doctrines and practices derived from the ... [50 Related Articles]
Italian journalist, short-story writer, and novelist, whose whimsical and imaginative fables made him one of the most important Italian fiction writers in the 20th century. [2 Related Articles]
a body of international rules regulating the jurisdiction of governments over aliens and the scope of their protection by their home states, as well as the use of force in ... [1 Related Articles]
Spanish politician was Spain's second prime minister (February 1981-December 1982) to preside over the country's difficult transition from Francisco Franco's military dictatorship to a modern constitutional monarchy. Calvo Sotelo survived ... [1 Related Articles]
(from the article "Gil Robles, Jose Maria") ...followed his youth leader Ramon Serrano Suner into the Falange. He remained chief opposition spokesman in the Cortes, but was increasingly eclipsed there by the monarchist Jose Calvo Sotelo. He ...
(from the article "phlogiston") ...Greek, meaning "burned"). Stahl believed that the corrosion of metals in air (e.g., the rusting of iron) was also a form of combustion, so that when a metal was converted ...
(from the article "Laurales") The members of Calycanthaceae differ from most of the other families in Laurales in having seeds with a large embryo and little if any endosperm at maturity. Except for Idiospermum, ...
(from the article "sweet shrub") ...egg-shaped fruiting body contains many dry, single-seeded achenes. Calycanthus floridus (Carolina allspice), a shrub about 3 metres (10 feet) tall from the southeastern United States, and C. occidentalis, from northern ...
family of small and economically unimportant dicotyledonous flowering plants containing six genera (Boopis, Calycera, Acicarpha, Acarpha, Gamocarpha, and Moschopsis) with 60 species distributed in Central and South America. One species ...
ancient Aetolian town in Greece, located on the Euenus (Evinos) River about 6 miles (9.5 km) east of modern Mesolongion. According to tradition, the town was founded by Calydon, son ...
(from the article "Meleager") in Greek mythology, the leader of the Calydonian boar hunt. The Iliad relates how Meleager's father, King Oeneus of Calydon, had omitted to sacrifice to Artemis, who sent a wild ...
genus of trilobites (extinct arthropods) dating from the Ordovician Period (505 to 438 million years ago). Well known in the fossil record, Calymene remains have been found in which impressions ...
(from the article "granuloma inguinale") ...sexually transmitted disease occurring predominantly in tropical areas and characterized by deep purulent ulcers on or near the genital organs. Encapsulated bacilli called Donovan bodies (Calymmatobacterium granulomatis) ...
in Greek mythology, the daughter of the Titan Atlas (or Oceanus or Nereus), a nymph of the mythical island of Ogygia. In Homer's Odyssey, Book V (also ... [1 Related Articles]
(from the article "Moons of Saturn") ...satellites, but, because Tethys and Dione are much more massive than their co-orbiters, there is no significant exchange of angular momentum. Instead, Tethys's two co-orbiters, Telesto and Calypso, are located ...
a type of folk song primarily from Trinidad though sung elsewhere in the southern and eastern Caribbean islands. The subject of a calypso text, usually witty and satiric, is a ...
(from the article "bryophyte") ...remains in the archegonium and undergoes many mitotic cell divisions to produce an embryonic sporophyte. The lower cells of the archegonium also divide and produce a protective structure, called the ...
(from the article "gastropod") ...plants; some species used for human food; conchs (Strombidae) of tropical oceans and the pelican's foot shells (Aporrhaidae) of near Arctic waters.Cap shells (Capulidae) and slipper shells (Calyptraeidae) are ...
(from the article "gastropod") ...and the pelican's foot shells (Aporrhaidae) of near Arctic waters.Cap shells (Capulidae) and slipper shells (Calyptraeidae) are limpets with irregularly shaped shells with a small internal cup or shelf; ...
(from the article "angiosperm") ...living parenchyma cells called the root cap. As the cells of the root cap are destroyed and sloughed off, new parenchyma cells are added by a special internal layer of ...
(from the article "palm") ...that are associated in some way with most palms. Few modern studies have been done, but obvious adaptations for insect pollination can be found in many palms. Bats have been ...
(from the article "renal pelvis") ...that is curved to one side, is almost completely enclosed in the deep indentation on the concave side of the kidney, the sinus. The large end of the pelvis has ...
