M�l�

Also spelled �mellay� ancient and medieval game, a predecessor of modern football (soccer), in which a round or oval object, usually the inflated bladder of an animal, was kicked, punched, carried, or driven toward a goal. Its origins are not known, but, according to one British tradition, the first ball used was the head of an enemy Dane. The games were played by large numbers of people with few rules

China, Industry

The development of industry has been given considerable attention since the advent of the Communist regime. Overall industrial output has grown at a rate of more than 10 percent per year, and China's industrial work force probably exceeds the combined total for all other developing countries. Industry has surpassed all other sectors in economic growth and degree

Aureus

Basic gold monetary unit of ancient Rome and the Roman world. It was first named nummus aureus (�gold money�), or denarius aureus, and was equal to 25 silver denarii; a denarius equaled 10 bronze asses. (In 89 BC, the sestertius, equal to one-quarter of a denarius, replaced the bronze ass as a unit of account.) In Constantine's reform of AD 312, the aureus was replaced by the solidus as the basic monetary

Ryle, Sir Martin

British radio astronomer who developed revolutionary radio telescope systems and used them for accurate location of weak radio sources. With improved equipment, he observed the most distant known galaxies of the universe. Ryle and Antony Hewish shared the Nobel Prize for Physics in 1974, the first Nobel prize

Portugal, Conquest and exploration

The idea of expansion into Africa was a logical result of the completion of the Reconquest in the peninsula, and the conquest of Ceuta in North Africa (1415) probably provided the impulse toward further expansion. The simple idea of fighting the Muslims on their own soil was linked with more complicated motives: the desire to explore in a scientific sense, the hope of finding

Mon

Also spelled �Mun�, Burmese �Talaing� people living in the eastern delta region of Myanmar (Burma) and in west-central Thailand, numbering in the late 20th century more than 1.1 million. The Mon have lived in their present area for the last 1,200 years, and it was they who gave Myanmar its writing (Pali) and its religion (Buddhism). The Mon are believed to have spread from western China over the river lowlands from the Irrawaddy

Antarctica, Early scientific progress

The period from the 1760s to about 1900 was one dominated by exploitation of Antarctic and subantarctic seas, particularly along Scotia Ridge. Sealing vessels of many nations, principally American and British but including Argentine, Australian, South African, New Zealand, German, and Norwegian, participated in hunting that eventually led to near extinction of the southern

Rwanda, Flag Of

Under the Belgian colonial regime, the elite Tutsi minority ruled the social, political, and economic life of Rwanda. The majority Hutu eventually organized a revolt against this feudal system, which culminated in a civil war that began on November 1, 1959. On March 23, 1960, the new Provisional Special Council, which was established by the Belgians and dominated by Hutu members,

Adams, Henry (brooks)

Adams was the product of Boston's Brahmin class, a cultured elite that traced its lineage to Puritan New England. He was the great-grandson of John Adams and the grandson of John Quincy Adams, both presidents

Biogeochemical Cycle

Any of the natural circulation pathways of the essential elements of living matter. These elements in various forms flow from the nonliving (abiotic) to the living (biotic) components of the biosphere and back to the nonliving again. In order for the living components of a major ecosystem (e.g., a lake or forest) to survive, all the chemical elements that make up living cells

Soil Mechanics

The first scientific study of soil mechanics was undertaken by French physicist Charles-Augustin de Coulomb, who published a theory of earth pressure in 1773. Coulomb's work and a theory of earth masses published by Scottish

Radic, Stjepan

With his brother Ante, he organized the Croatian Peasant Party in 1904. In March 1918 Radic began to cooperate with the National Council in Zagreb for the establishment of a Yugoslav

Europa

Also called �Jupiter II, � fourth largest satellite of the planet Jupiter. One of the four Galilean satellites, it was discovered by the Italian astronomer Galileo Galilei in 1610 and was named by the German astronomer Simon Marius after a figure in Greek mythology. Europa has a diameter of 3,138 km (1,946 miles), and it orbits Jupiter at a distance of approximately 670,900 km (416,900 miles). The satellite has a density of 3.03 grams

Amplitude

In physics, the maximum displacement or distance moved by a point on a vibrating body or wave measured from its equilibrium position. It is equal to one-half the length of the vibration path. The amplitude of a pendulum is thus one-half the distance that the bob traverses in moving from one side to the other. Waves are generated by vibrating sources, their amplitude being

Ibn Al-'arabi

A.M. Palacios, El Islam cristianizado; estudio del �sufismo� a trav�s de las obras de Abenarabi de Murcia (1931); R.A. Nicholson, Studies in Islamic Mysticism (1921); A.E. Affifi, The Mystical Philosophy of Muhyid-Din Ibnul 'Arabi (1939); S.H. Nasr, Three Muslim Sages (1963); M.M. Sharif (ed.), A History of Muslim Philosophy, vol. 2 (1963); Henry Corbin, Creative Imagination in the Sufism of Ibn 'Arabi (Eng. trans. 1969); Osman Yahya, Histoire et classification de l'oeuvre d'Ibn 'Arabi, 2 vol. (1964); T. Izutsu, A Comparative Study of the Key Philosophical Concepts in Sufism and Taoism: Ibn 'Arab� and Lao Tz�, Chuang Tz�, 2 vol. (1966 - 67). See especially the works of Palacios, Nasr, and Corbin for biographical information.

Malayan Emergency

After World War II the Federation of Malaya was formed through the unification of several former British territories, including Sabah and Sarawak. The negotiations included special guarantees of rights for Malays (including the position of sultans) and the establishment

Fabritius, Carel

He was the son of a schoolmaster, who is said to have been a part-time painter, and both Carel and his brother Barent became painters; both

Christian Vi

Tolerably gifted, he became a diligent and conscientious ruler, choosing able administrators; but he was shy, reserved, and unprepossessing in appearance. Like his consort, Sophie Magdalene

Lorentz Transformations

Set of equations in relativity physics that relate the space and time coordinates of two systems moving at a constant velocity relative to each other. Required to describe high-speed phenomena approaching the speed of light, Lorentz transformations formally express the relativity concepts that space and time are not absolute; that length, time, and mass depend

Vedantadesika

Vedantadesika was born into a distinguished Srivaisnava family that followed the teachings of Ramanuja, an 11th - 12th-century

Vaccine

A vaccine can confer active immunity against a specific harmful agent by stimulating the immune system to attack the agent. Once stimulated by a vaccine, the antibody-producing cells, called B lymphocytes,

Ado-ekiti

Town, Ondo state, southwestern Nigeria. It lies in the Yoruba Hills, at the intersection of roads from Akure, Ilawe, Ilesha, Ila (Illa), and Ikare, and is situated 92 miles (148 km) east-northeast of Ibadan. An urban and industrial centre of the region, it was founded by the Ekiti people, a Yoruba subgroup whose members belonged to the Ekiti-Parapo, a late 19th-century confederation of Yoruba

Plow

The antecedent of the plow is the prehistoric digging stick. The earliest plows were doubtless digging sticks fashioned with handles for pulling or pushing. By Roman times, light, wheelless plows with iron shares (blades)

Silicon Carbide

Exceedingly hard, synthetically produced crystalline compound of silicon and carbon. Its chemical formula is SiC. Since the late 19th century silicon carbide has been an important material for sandpapers, grinding wheels, and cutting tools. More recently, it has found application in refractory linings and heating elements for industrial furnaces, in wear-resistant

Eye, Human, The axes of the eye

It is worthwhile at this point to define certain axes of the eyes employed during different types of study. The optic axis of the eye is a line drawn through the centre of the cornea and the nodal (central) point of the eye; it actually does not intersect with the retina at the centre of the fovea as might be expected, but toward the nose from this, so that there is an angle of