English physicist and recipient of the 1928 Nobel Prize for Physics for his work on electron emission by hot metals, the basic principle used in vacuum tubes.
English theatrical and motion-picture director whose experimental productions stimulated a renewal of creative vitality on the British stage during the 1950s.
site of a Roman port (Rutupiae) in Dover district, administrative and historic county of Kent, England, located just north of Sandwich. After the Roman invasion of Britain in 43 CE, ...
river in Monteregie region, southern Quebec province, Canada, rising from Lake Champlain, just north of the Canada-U.S. border, and flowing northward for 75 miles (120 km) to join the St. ...
French nobleman, soldier, and statesman who, as premier of France (1815-18 and 1820-21), obtained the withdrawal of the Allied occupation army from France. Earlier, he had served Russia as governor ...
chief minister to King Louis XIII of France from 1624 to 1642. His major goals were the establishment of royal absolutism in France and the end of Spanish-Habsburg hegemony in ...
constable of France (from 1425) who fought for Charles VII under the banner of Joan of Arc and later fought further battles against the English (1436-53) in the final years ...
French poet, dramatist, and novelist who examined the lower levels of society in sharp, bold language. As Emile Zola revolutionized the novel with his naturalism, Richepin did the same for ...
French astronomer whose observations of the planet Mars from Cayenne, French Guyana, in 1671-73 contributed to both astronomy and geodesy. The French government sent Richer to Cayenne to measure the ...
French physiologist who won the 1913 Nobel Prize for Physiology or Medicine for his discovery of and coining of the term anaphylaxis, the life-threatening allergic reaction he observed in a ...
county, central South Carolina, U.S. It is bordered to the east by the Wateree River and to the west by the Broad River, which, after its confluence with the Saluda, ...
city, Benton county, south-central Washington, U.S., at the juncture of the Yakima and Columbia rivers. With Kennewick and Pasco, it forms a tri-city area. Named in 1905 for Nelson Rich, ...
town, part of Richmond-Windsor urban area, east-central New South Wales, Australia, on the Hawkesbury River. It is situated on a hill, was named in 1789 after the Duke of Richmond ...
city, capital of Virginia, U.S., seat (1752) of Henrico county, situated in the east-central part of the state at the head of navigation of the James River. Politically independent of ...
port city, Contra Costa county, western California, U.S. It lies on the northeastern shore of San Francisco Bay and is connected to Marin county by the Richmond-San Rafael Bridge (1956), ...
county (area 58 sq mi [48 sq km]), southeastern New York, U.S., coextensive with Staten Island borough, which comprises Staten Island (q.v.) and part or all of several smaller islands ...
city, seat (1798) of Madison county, east-central Kentucky, U.S., in the outer Bluegrass region, near the Cumberland foothills. The city, on the old Wilderness Road, 25 miles (39 km) southeast ...
city, seat (1873) of Wayne county, east-central Indiana, U.S. It is located on the East Fork of Whitewater River, 67 miles (108 km) east of Indianapolis at the Ohio border. ...
town, southeastern Tasmania, Australia, situated on Coal River at the head of Pitt Water lagoon. In 1815 Tasmania's first flour mill was built in the area, and by 1823 a ...
town ("parish"), Richmondshire district, administrative county of North Yorkshire, historic county of Yorkshire, England, situated on the left bank of the River Swale where its dale (upland valley) opens into ...
principal river of the North Coast district, New South Wales, Australia, rising on Mt. Lindesay, in the McPherson Range, and flowing southeast through Casino and Coraki, at which point it ...
outer borough of London. It is drained by a 12-mile (19-km) section of the River Thames, which bisects the borough and also forms its northern and southern boundaries. Richmond upon ...
son of Charles II of England by his mistress Louise de Keroualle, duchess of Portsmouth. He was aide-de-camp to William III from 1693 to 1702 and lord of the bedchamber ...
private, coeducational institution of higher learning in Richmond, Virginia, U.S. It is affiliated with the Baptist General Association of Virginia. The university includes the School of Arts and Sciences, the ...
division of Ordovician time in North America; the Richmondian is the last stage of the Upper Ordovician Cincinnatian Series of rocks (the Ordovician Period began about 500,000,000 years ago and ...
district, administrative county of North Yorkshire, historic county of Yorkshire, England, centred on the valleys of Swaledale and Wensleydale in the northwestern corner of the county. The upper dales are ...
American physicist who was jointly awarded the 1976 Nobel Prize for Physics with Samuel C.C. Ting for the discovery of a new subatomic particle, the J/psi particle.
American biologist who helped pioneer the discovery and study of biorhythms and who showed that humans' biological processes can be strongly influenced by learned behaviour.
Soviet pianist whose technical virtuosity combined with subtle introspection, made him one of the preeminent pianists of the 20th century. Though his repertoire was enormous, he was especially praised for ...
amphibole mineral, a sodium silicate of calcium and magnesium or manganese. It occurs in thermally metamorphosed limestones and skarns or as a hydrothermal product in alkaline igneous rocks. Richterite is ...
German geographer and geologist who produced a major work on China and contributed to the development of geographical methodology. He also helped establish the science of geomorphology, the branch of ...
American gambler and fight promoter who made boxing fashionable and highly profitable. His promotions featuring Jack Dempsey, world heavyweight champion from 1919 to 1926, attracted the first five "million-dollar gates" ...
copper telluride mineral with the formula Cu4Te3, the purple-red masses of which resemble tarnished bornite. It was discovered at Vulcan, Colo., where it is accompanied by weissite, another copper telluride ...
American pathologist who discovered the causative organisms and mode of transmission of Rocky Mountain spotted fever and epidemic typhus (known in Mexico, where Ricketts worked for a time and died ...
any member of three genera (Rickettsia, Coxiella, Rochalimaea) of bacteria in the family Rickettsiaceae. The rickettsiae are rod-shaped or variably spherical, nonfilterable bacteria, and most species are gram-negative. They are ...
American professional baseball executive who devised the farm system of training ballplayers (1919) and hired the first black players in organized baseball in the 20th century.
American naval officer and engineer who developed the world's first nuclear-powered engines and the first atomic-powered submarine, the USS Nautilus, launched in 1954. He then went on to supervise plans ...
(Japanese: "human-powered vehicle"), two-wheeled vehicle with a doorless, chairlike body and a collapsible hood, that holds one or two passengers and is drawn by a man between two shafts. It ...
deliberately enigmatic or ambiguous question requiring a thoughtful and often witty answer. The riddle is a form of guessing game that has been a part of the folklore of most ...
American astronaut, the first American woman to travel into outer space. Only two other women preceded her: Valentina Tereshkova (1963) and Svetlana Savitskaya (1982), both from the former Soviet Union.
canal in southeastern Ontario, Canada, that links Ottawa on the Ottawa River with Kingston on Lake Ontario. For nearly 125 miles (200 km) it follows the Rideau River southwest from ...
private, coeducational institution of higher learning in Lawrenceville, New Jersey, U.S. It includes colleges of Business Administration, Liberal Arts, Education, Sciences, and Continuing Studies. It also includes a music school, ...
physiographic province, part of the Appalacian Highlands in the eastern United States. It is bordered on the east by the Blue Ridge and Piedmont provinces and on the west by ...
village, Bergen county, northeastern New Jersey, U.S. It lies along the Saddle River, 5 miles (8 km) northeast of Paterson, New Jersey. Dutch farmers settled in the area in the ...
type of Staffordshire pottery first produced by the brothers Job and George Ridgway in 1792 at the Bell Works at Shelton, Hanley, North Staffordshire, Eng. Despite family tensions, the Ridgways ...
nee Reichenthal, married name Jackson, pseudonyms Barbara Rich, Madeleine Vara, and Laura Riding Gottschalk American poet, critic, and prose writer who was influential among the literary avant-garde during the 1920s ...
also called Roberto Di Ridolfo Florentine conspirator who attempted in 1570-71 to overthrow Queen Elizabeth I of England in favour of Mary Stuart, Queen of Scots, who then was to ...
nee Gomperz Austrian-born British studio potter. Her unique and complex slip-glaze surface treatment and inventive kiln-processing influenced an entire generation of younger British ceramists.
a sodium-iron silicate mineral [Na2Fe2+3Fe3+2Si8O22(OH)2] in the amphibole family. It forms part of a solid-solution series that includes both magnesioriebeckite (formed when iron is replaced by magnesium) and glaucophane (formed ...
in geology, statement that a mineral grain possesses a greater solubility under high stress than it does under low stress. According to this principle, stressed grains in a rock will ...
town, Bundesland (federal state) Oberosterreich, northern Austria, located west of Wels. It has a museum of folklore and a parish church (1721-33) with two 17th-century altars. The town is the ...
extremely rare form of chronic inflammation of the thyroid gland, in which the glandular tissues assume a densely fibrous structure, interfering with production of thyroid hormone and compressing the adjacent ...
German motion-picture director, actress, producer, and photographer who is best known for her documentary films of the 1930s dramatizing the power and pageantry of the Nazi movement.
