| Balliol, John de ... Balmont, Konstantin |
| | - Balliol, John de
- Scottish magnate of Norman descent, one of the richest landowners of his time in Britain, who is regarded as the founder of Balliol College, Oxford; he was the father of John de Balliol, king of Scots. The elder John served ... [2 Related Articles]
- ballista
- ancient missile launcher designed to hurl javelins or heavy balls. Ballistas were powered by torsion derived from two thick skeins of twisted cords through which were thrust two separate arms joined at their ends by the cord that propelled the ... [2 Related Articles]
- ballistic galvanometer
- (from the article "galvanometer") The ballistic galvanometer is designed to deflect its indicating needle (or mirror) in a way that is proportional to the total charge passing through its moving coil or to a voltage pulse of short duration. Any conventional galvanometer may also ...
- ballistic missile
- (from the article "Military Affairs") In January China became only the third country (after the former Soviet Union and the United States) to have successfully tested an antisatellite weapon. The test involved using a medium-range ballistic missile, which rammed a disused Chinese weather satellite orbiting ...
- ballistic missile defense radar
- (from the article "radar") The systems for detecting and tracking ballistic missiles and orbiting satellites are much larger than those for aircraft detection because the ranges are longer and the radar echoes from space targets can be smaller than echoes from aircraft. Such radars ...
- Ballistic Missile Early Warning System
- (from the article "radar") ...Two antennas make up a system, with each capable of covering a sector 120 degrees in azimuth. Vertical coverage is from 3 to 85 degrees. An upgraded variant of this type of radar is used in the Ballistic Missile Early ...
- ballistic pendulum
- device for measuring the velocity of a projectile, such as a bullet. A large wooden block suspended by two cords serves as the pendulum bob. When a bullet is fired into the bob, its momentum is transferred to the bob. ... [2 Related Articles]
- ballistics
- science of the propulsion, flight, and impact of projectiles. It is divided into several disciplines. Internal and external ballistics, respectively, deal with the propulsion and the flight of projectiles. The transition between these two regimes is called intermediate ballistics. Terminal ... [4 Related Articles]
- ballistite
- (from the article "explosive") In 1887 Nobel introduced another of his revolutionary inventions, which he called Ballistite. He mixed 40 percent of a lower nitrogen content, more soluble nitrocellulose, and 60 percent of nitroglycerin. Cut into flakes, this made an excellent propellant, and it ...
- ballistocardiogram
- (from the article "ballistocardiography") ...of the body, which in turn causes movements in a suspended supporting structure, usually a special table or bed on which the subject is lying, and these movements are recorded photographically (ballistocardiogram, or BCG) as a series of waves. The ...
- ballistocardiography
- graphic recording of the stroke volume of the heart for the purpose of calculating cardiac output. The heartbeat results in motion of the body, which in turn causes movements in a suspended supporting structure, usually a special table or bed ...
- ballistospore
- in fungi, a spore forcibly propelled from its site. The basidiospores of the mushrooms, produced on the gills and on the walls of the spores, are ballistospores. They are shot a very short distance from the vertical walls of the ...
- Ballivian, Lake
- predecessor to modern Lake Titicaca, on the Bolivia-Peru border during the Pleistocene Epoch (approximately 1.8 million to 11,800 years ago). Its surface is thought to have been at least 100 metres (330 feet) higher than Lake Titicaca's current level. As ...
- ballivus
- (from the article "agency") About this time, the doctrine of principal and agent developed in England as an outgrowth or expansion of the doctrine of master and servant. Anglo-Norman law created the figures of ballivus and attornatus. His position in the household of his ...
- balloon
- large airtight bag filled with hot air or a lighter-than-air gas, such as helium or hydrogen, to provide buoyancy so that it will rise and float in the atmosphere. Transport balloons have a basket or container hung below for passengers ... [13 Related Articles]
- balloon angioplasty
- (from the article "atherosclerosis") ...have been saved by coronary bypass surgery, in which sections of blood vessels from other parts of the body are used to route blood flow around the obstructions. Some occlusions can be opened by balloon angioplasty, in which a catheter ...
- balloon flight
- passage through the air of a balloon that contains a buoyant gas, such as helium or heated air, for which reason it is also known as lighter-than-air free flight. Unmanned balloons have been used to carry meteorological instruments and may ...
- balloon fly
- any member of a family of flies in the insect order Diptera that are named for their swollen abdomen. It is also characterized by an extremely small head and a humped back. Some adults have a slender proboscis (feeding organ) ...
- balloon framing
- framework of a wooden building in which the elements consist of small members nailed together. In balloon framing, the studs (vertical members) extend the full height of the building (usually two stories) from foundation plate to rafter plate, as contrasted ... [1 Related Articles]
- balloon tuboplasty
- (from the article "infertility") ...tube can be used to remove an obstruction and, as a result, correct the underlying fertility problem. Less-invasive techniques also may be used to unblock obstructed fallopian tubes. For example, balloon tuboplasty involves the insertion of a catheter through the ...
- balloon vine
- (species Cardiospermum halicacabum), woody perennial vine in the soapberry family (Sapindaceae) that is native to subtropical and tropical America. It is naturalized and cultivated widely as an ornamental for its white flowers and its nearly globular inflated fruits, which are ... [1 Related Articles]
- balloonflower
- plant that is the only species of its genus, an East Asian perennial of the bellflower family (Campanulaceae). The balloonflower has balloonlike buds that become flaring, five-lobed, bell-shaped flowers with a thick, rubbery texture.
- ballooning
- unpowered balloon flight in competition or for recreation, a sport that became popular in the 1960s. The balloons used are of plastic, nylon, or polyethylene, and are filled with hydrogen, helium, methane, or hot air. [8 Related Articles]
- ballooning
- (from the article "gypsy moth") ...stage. Small larvae spin silk from glands in their mouthparts and hang from branches high up in trees. If the silk lines are long enough, the wind breaks them from the tree, and the silk acts as a parasail, carrying ...
- Ballot Act
- (from the article "Australian ballot") In Great Britain the secret ballot was finally introduced for all parliamentary and municipal elections by the Ballot Act of 1872. In the United States, the Australian ballot system was extensively adopted after the presidential election of 1884.
- ballotade
- (from the article "horsemanship") ...is more upward than forward; the levade, in which the horse stands balanced on its hindlegs, its forelegs drawn in; the courvet, which is a jump forward in the levade position; and the croupade, ballotade, and capriole, a variety of ...
- Ballou, Hosea
- (from the article "Tufts University") Hosea Ballou (1796-1861), nephew of the theologian Hosea Ballou (1771-1852), was joined by Universalist church members in founding Tufts College in 1852 and served as its first president. It was named for its original benefactor, Charles Tufts of Somerville. Women ...
- Ballou, Hosea
- American theologian who for more than 50 years was an influential leader in the Universalist church. [2 Related Articles]
- ballpoint pen
- (from the article "Frawley, Patrick Joseph, Jr.") ...his father's import-export firm, and by his early 20s he was managing his own import-export company in San Francisco. He expanded his business in 1949 by purchasing a bankrupt fabricator of ballpoint pen components for $18,000. Ballpoint pens, which had ...
- ballroom dance
- European and American social dancing performed by couples. It includes the standard repertory of dances such as the fox-trot, waltz, polka, and tango as well as various fad dances from the Charleston through the jitterbug, hustle, frug, and disco dancing. ... [3 Related Articles]
- Bally
- city, southeastern West Bengal state, northeastern India. Bally lies just west of the Hooghly River. A part of the Howrah urban agglomeration, it is connected by road and rail with Howrah, Kharagpur, and Burdwan and is a steamer station for ...
- Bally, Charles
- (from the article "stylistics") The traditional idea of style as something properly added to thoughts contrasts with the ideas that derive from Charles Bally (1865-1947), the Swiss philologist, and Leo Spitzer (1887-1960), the Austrian literary critic. According to followers of these thinkers, style in ...
- Ballycastle
- town, Moyle district (established 1973), formerly in County Antrim, Northern Ireland. It is situated along Ballycastle Bay, opposite Rathlin Island, where Robert Bruce, king of Scotland, is said to have hidden in a cave. Ballycastle is at the mouth of ... [1 Related Articles]
- Ballyman Church
- (from the article "Bray") ...terminate southward in Bray Head, a 653-foot (199-metre) quartzite peak. Bray is an important tourist centre, both as a resort and as a base for touring the scenic areas of Wicklow. The remains of Ballyman Church, rebuilt in the 12th ...
- Ballymena
- district, Northern Ireland. It was established in 1973 and was formerly in County Antrim. Ballymena borders the districts of Magherafelt to the west, Ballymoney and Moyle to the north, Larne to the east, and Antrim to the south. The desolate ...
- Ballymena
- town and seat of Ballymena district, Northern Ireland. It lies in the River Main valley 24 miles (40 km) northwest of the city of Belfast. The town is the market centre for the surrounding countryside and has been long known ... [1 Related Articles]
- Ballymoney
- (from the article "Ballymoney") ...on a tributary of the River Bann, was the birthplace of James McKinley, grandfather of the U.S. president William McKinley. The town preserves a marketplace of 1775 and an old parish church (1637). Ballymoney town is now a thriving agricultural ...
- Ballymoney
- town, seat, and district (established 1973), formerly within County Antrim, Northern Ireland. The town of Ballymoney, located on the eastern side of the valley on a tributary of the River Bann, was the birthplace of James McKinley, grandfather of the ...
- Ballymun
- (from the article "Dublin") After the war, as shortages eased, new suburbs began to spread. In 1969 high-rise apartment blocks were built in new satellite developments in the towns of Ballymun and Ballyfermot; unfortunately, these proved no more immune to the crime and vandalism ...
- Ballynahinch
- (from the article "Down") ...chief crops are oats, barley, wheat, and hay. Livestock raising (sheep and pigs) is also important. Downpatrick is the district's market and administrative seat and has some textile industry, while Ballynahinch, located farther west, has agricultural machinery and metal-fabrication industries. ...
- balm
- any of several fragrant herbs of the mint family, particularly Melissa officinalis, also called balm gentle, or lemon balm, and cultivated in temperate climates for its fragrant leaves, which are used as a scent in perfumery, as a flavouring in ...
- balm of Gilead
- (from the article "balm") ...laevis, Molucca balm, or bells of Ireland. Aromatic exudations from species of Commiphora (trees and shrubs of the incense-tree family) may also be referred to as balm. Balm of Gilead, or balm of Mecca, is the myrrhlike resin from Commiphora ...
- balm of Gilead poplar
- (from the article "poplar") ...tacamahac (P. tacamahaca or P. balsamifera), which is native throughout northern North America in swampy soil, is distinguished by its aromatic, resinous buds. The buds of the similar balm of Gilead poplar (P. jackii) are used to make an ointment. ...
- Balmaceda, Jose Manuel
- liberal reformer and president of Chile (1886-91) whose conflict with his legislature precipitated a civil war in 1891. [3 Related Articles]
- Balmain, Pierre
- French couturier who in 1945 founded a fashion house that made his name a byword for elegance. His clients included the Duchess of Windsor, the Queen of Belgium, and many of the leading film stars of the 1950s, as well ... [1 Related Articles]
- Balmat, Jacques
- (from the article "mountaineering") ...offered prize money for the first ascent of Mont Blanc, but it was not until 1786, more than 25 years later, that his money was claimed by a Chamonix doctor, Michel-Gabriel Paccard, and his porter, Jacques Balmat. A year later ...
- Balmer series
- (from the article "atom") Bohr's model accounts for the stability of atoms because the electron cannot lose more energy than it has in the smallest orbit, the one with n = 1. The model also explains the Balmer formula for the spectral lines of hydrogen. The ...
- Balmer, Johann Jakob
- Swiss mathematician who discovered a formula basic to the development of atomic theory and the field of atomic spectroscopy. [4 Related Articles]
- Balmer-alpha line
- (from the article "Stark effect") ...electric field in a space of a few millimetres. At electric field intensities of 100,000 volts per centimetre, Stark observed with a spectroscope that the characteristic spectral lines, called Balmer lines, of hydrogen were split into a number of symmetrically ...
- Balmes, Jaime Luciano
- ecclesiastic, political writer, and philosopher whose liberal ideas were strongly opposed by conservative Roman Catholics.
- Balmont, Konstantin
- (from the article "Russia") ...new cry was "art for art's sake," and the new idols were the French Symbolists. The first, "decadent" generation of Russian Symbolists included the poets Valery Bryusov, Konstantin Balmont, and Zinaida Gippius. The second, more mystically and apocalyptically oriented generation ...
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