physical phenomenon in which certain electrically uncharged materials strongly attract others. Two materials found in nature, lodestone (or magnetite, an oxide of iron, Fe3O4) and iron, have the ability to ...
largest railway system of Italy. FS operates lines on the mainland and also on the islands of Sicily and Sardinia, which are linked to the mainland by train ferries. The ...
Florentine military leader who defended his native city in the last days of the republic of Florence against Pope Clement VII and Holy Roman emperor Charles V, who sought to ...
French statesman of the early Third Republic, notable both for his anticlerical education policy and for his success in extending the French colonial empire.
village, southeastern Newfoundland, Canada. It lies on the eastern side of the Avalon Peninsula, about 40 miles (65 km) south of St. John's. First visited by Portuguese and French fishermen ...
Swedish-French soldier, diplomat, and statesman who was active in counterrevolutionary activity after the French Revolution of 1789 and the rise of Napoleon.
the region in the Middle East where the civilizations of the Middle East and the Mediterranean basin began. The term was popularized by the American Orientalist James Henry Breasted.
respectively, the ability and inability of a human couple to conceive and reproduce. Fertility refers to the ability to become pregnant through normal sexual activity, and infertility is defined as ...
union of a spermatozoal nucleus, of paternal origin, with an egg nucleus, of maternal origin, to form the primary nucleus of an embryo. In all organisms the essence of fertilization ...
natural or artificial substance containing the chemical elements that improve growth and productiveness of plants. Fertilizers enhance the natural fertility of the soil or replace the chemical elements taken from ...
agricultural commune, Gyor-Sopron megye (county), western Hungary. It lies near the south end of Ferto (German: Neusiedler) Lake on the Austrian frontier. It was a seat of the Esterhazy princes, ...
city, northern Morocco, on the Wadi Fes just above its influx into the Sebou River. The oldest of Morocco's four imperial cities, it was founded on the banks of the ...
early native Italian jocular dialogue in Latin verse. At vintage and harvest, and probably at other rustic festivals, these were sung by masked dancers. They were similar to ribald wedding ...
any of about 100 species of grasses constituting the genus Festuca (family Poaceae), native to temperate and cold regions of the Northern Hemisphere. Several species are important pasture and fodder ...
Latin grammarian who made an abridgment in 20 books of Marcus Verrius Flaccus' De significatu verborum ("On the Meaning of Words"), a work that is otherwise lost. A storehouse of ...
Russian poet and translator, whose sincere and passionate lyric poetry strongly influenced later Russian poets, particularly the Symbolist Aleksandr Blok.
fresh, white, soft or semisoft cheese of Greece, originally made exclusively from goat's or sheep's milk but in modern times containing cow's milk. Feta is not cooked or pressed but ...
various congenital abnormalities in the newborn infant that are caused by the mother's ingestion of alcohol around the time of conception or during pregnancy.
area of ocean or lake surface over which the wind blows in an essentially constant direction, thus generating waves. The term also is used as a synonym for fetch length, ...
(French: "rural feast"), in painting, representation of a rural feast or open-air entertainment. Although the term fete galante ("gallant feast") is sometimes used synonymously with fete champetre, it is also ...
town, southwestern Turkey. It lies along a sheltered bay in the eastern part of the Gulf of Fethiye on the Mediterranean Sea that is backed by the western Taurus ranges. ...
any of a body of 20 Roman priestly officials who were concerned with various aspects of international relations, such as treaties and declarations of war. The fetials were originally selected ...
Russian hockey player who was regarded as one of the best defensemen in the history of the sport. As a member of the Soviet Olympic team in the 1980s, he ...
Italian Baroque painter whose best-known works are small representations of biblical parables as scenes from everyday life-e.g., The Good Samaritan (Metropolitan Museum of Art, New York City). ...
a continuing state of conflict between two groups within a society (typically kinship groups) characterized by violence, usually killings and counterkillings. It exists in many nonliterate communities in which there ...
system by which land was held by tenants from lords. As developed in medieval England and France, the king was lord paramount with numerous levels of lesser lords down to ...
term that emerged in the 17th century and has been used to describe European economic, legal, political, and social relationships that existed in the Middle Ages. Derived from the Latin ...
conservative political club of the French Revolution, which met in the former monastery of the Feuillants (Reformed Cistercians) near the Tuileries, in Paris.
French dancer, dancing master, and choreographer whose dance notation system was published in his Choregraphie ou l'art de decrire la danse (1700; "Choreography, or the Art of Describing the Dance"). ...
abnormally high bodily temperature or a disease of which an abnormally high temperature is characteristic. Although most often associated with infection, fever is also observed in other pathologic states, such ...
any of the four North American plant species of the genus Triosteum, all coarse perennials belonging to the family Caprifoliaceae. The other six species of the genus are Asian. The ...
popular French motion-picture director of the 1920s and '30s whose films are imbued with a sympathy for the common man and an attempt at psychological interpretation of character. His sharp ...
a graphical method of representing the interactions of elementary particles, invented in the 1940s and '50s by the American theoretical physicist Richard P. Feynman. Introduced during the development of the ...
American theoretical physicist who was widely regarded as the most brilliant, influential, and iconoclastic figure in his field in the post-World War II era.
town, northeastern Afghanistan. It lies along the Kowkcheh River, at 4,000 feet (1,200 m) above sea level. Feyzabad was destroyed by Morad Beg of Qonduz in 1821 and its inhabitants ...
historic region of northern Africa and until 1963 one of the three provinces of the United Kingdom of Libya. It is part of the Sahara (desert) and now constitutes the ...
French coach for hire, named for the Hotel Saint-Fiacre, in Paris, where it was introduced in the 1640s. The first fiacres were boxlike, four-wheeled, open, hooded vehicles that were drawn ...
town, east-central Madagascar. The town was founded in 1830. It lies on the eastern fringe of a forested escarpment at an average elevation of 4,000 feet (1,200 m) and consists ...
international holding company and major Italian manufacturer of automobiles, trucks, and industrial vehicles and components. It is the largest family-owned corporation in Italy. Headquarters are in Turin.
Danish pathologist who received the Nobel Prize for Physiology or Medicine in 1926 for achieving the first controlled induction of cancer in laboratory animals, a development of profound importance to ...
the elements of the sequence of numbers 1, 1, 2, 3, 5, 8, 13, 21, &elipsis;, each of which, after the second, is the sum of the two previous numbers. ...
in textile production, basic unit of raw material having suitable length, pliability, and strength for conversion into yarns and fabrics. A fibre of extreme length is a filament. Fibres can ...
the science of transmitting data, voice, and images by the passage of light through thin, transparent fibres. In telecommunications, fibre optic technology has virtually replaced copper wire in long-distance telephone ...
fibre whose chemical composition, structure, and properties are significantly modified during the manufacturing process. Man-made fibres are spun and woven into a huge number of consumer and industrial products, including ...
an insoluble protein that is produced in response to bleeding and is the major component of the blood clot. Fibrin is a tough protein substance that is arranged in long ...
the principal nonmotile cells of connective tissue; fibroblasts are large, flat, elongated (spindle-shaped) cells possessing processes extending out from the ends of the cell body. The cell nucleus is flat ...
either of two unrelated diseases, one affecting the breast and the other affecting the pancreas. For a discussion of the disease of the pancreas, see cystic fibrosis.
any benign tumour of fibrous tissue. Specific fibromas include nonossifying fibroma, found in the large long bones; it is relatively common in older children and young adults. Fibromas can occur ...
chronic syndrome that is characterized by musculoskeletal pain, often at multiple anatomical sites, that occurs in the absence of an identifiable physical or physiological cause. A significant number of persons ...
an uncommon malignant tumour of fibrous tissue found in young adults and most often occurring in the thighbone, upper arm bone, or jaw. The mass is felt before pain occurs. ...
rare congenital developmental disorder beginning in childhood, characterized by cyst formation and replacement of solid, calcified bone with fibrous tissue, often only on one side of the body, in the ...
(Latin: "brooch"), outer of two bones of lower leg or hindlimb, probably so named because the other bone, the tibia, and the fibula together resemble an ancient brooch, or pin. ...
brooch, or pin, originally used in Greek and Roman dress for fastening garments. The fibula developed in a variety of shapes, but all were based on the safety-pin principle.
