Taranis

The advantages of using pure oxygen instead of air in refining pig iron into steel were recognized

Water Cock

(Gallicrex cinerea), marsh bird of the rail family, Rallidae (order Gruiformes). It occurs from India to Japan and throughout Southeast Asia to the Philippines. The male is blue-black with red legs, a strongly conical red bill, and a protruding red frontal shield. The female is mottled and barred yellowish brown. The water cock is troublesome in rice fields, where it likes

Kyoga Lake

Also spelled  Kioga Lake,   lake in central Uganda, East Africa, north of Lake Victoria, formed by the Victoria Nile in its middle course. The many-armed lake is shallow, with swampy, papyrus-reeded shores; masses of papyrus are broken loose by strong winds and sometimes have completely blocked the river. Navigation for shallow-draft vessels is possible between Namasagali and Masindi Port. The

Jack-o'-lantern

In American holiday custom, a hollowed-out-pumpkin lantern that is displayed on Halloween. The surface of the pumpkin is carved to resemble a face. Light from a candle inserted inside can be seen flickering through the jack-o'-lantern's cutout eyes, nose, and usually grotesquely grinning mouth. The custom originated in the British Isles, with a large turnip or other vegetable

Mountain, Tectonic processes that produce high elevations

As noted above, individual mountains, mountain ranges, mountain belts, and plateaus exist because tectonic processes have elevated terrains faster than erosion could destroy them. High elevations are created by three major processes: volcanism, horizontal crustal shortening as manifested by folding and by faulting, and the heating and thermal expansion of

Alaskan Mountains

The mountain ranges of Alaska give their state a rugged and beautiful terrain across its entire expanse. They include the highest peak in North America and are characterized by glaciers, earthquakes, and continuing volcanic activity. Structurally, the ranges are

Quantification

In logic, the attachment of signs of quantity to the predicate or subject of a proposition. The universal quantifier, symbolized by (-) or (-), where the blank is filled by a variable, is used to express that the formula following holds for all values of the particular variable quantified. The existential quantifier, symbolized ($-), expresses that the formula following holds

Malaspina Family

Feudal family powerful in northern Italy in the Middle Ages. Descended from Marquis Oberto I, who was created count palatine by the Holy Roman emperor Otto I, the family at first controlled Tuscany, eastern Liguria, and the March of Lombardy. Early in the 11th century the Este, Pallavicino, and Massa-Corsica family branches separated from the Malaspina. The situation

Theatre-in-the-round

Also spelled  Theater-in-the-round,  also called  Arena Stage, Central Stage, or Island Stage,   form of theatrical staging in which the acting area, which may be raised or at floor level, is completely surrounded by the audience. It has been theorized that the informality thus established leads to increased rapport between the audience and the actors. Theatre-in-the-round has its roots in rituals such as those performed by the ancient Greeks, which evolved into

Tie-dyeing

Method of dyeing by hand in which coloured patterns are produced in the fabric by gathering together many small portions of material and tying them tightly with string before immersing the cloth in the dyebath. The dye fails to penetrate the tied sections. After drying, the fabric is untied to reveal irregular circles, dots, and stripes. Varicoloured patterns may

Mosby, John Singleton

Reared near Charlottesville, Va., Mosby entered the University of Virginia in 1849 and graduated in 1852. While there, he shot at and wounded a few students, but his resulting jail sentence