BERIKAOBA, Georgian improvizatsionnyj a folk theatre of a mask. Existed from ancient times up to nach. 20 century. Actors berikaoba called berike.

BERYL, mineral of subclass of ring silikates, Al2Be3 [Si6O18]. Crystals - hexahedral prisms. Green, white mottled, grey. Versions: an emerald, aquamarine, geliodor, vorobjevit (precious stones), rosterit. Hardness 7,5-8; firmness of 2,65-2,75 g / sm3. Meets in pnevmatolito-hydrothermal deposits, in pegmatitah, grejzenah, quartzy cable cores, etc. Ore of beryllium.

BERYLLIUM ORE. Main minerals: beryl, fenakit, bertrandite, gelbertrandit, chrysoberyl, Helvinum, gentgelvin. Deposits postmagmatic. Content BeO in beryllium ores from 0,05-0,09 up to 0,7 %. Deposits: Minas-ZHerajs, Fur stole - whist (Brazil), Filch - Mauntin (USA), etc.

BERILLIUM DIFFUSION, saturation of a surface of items from high-temperature alloys beryllium primarily for antioxygenation at temperatures up to 1100 °S.

BERYLLIUM (an armour. Beryllium), Ve, a chemical element of II group of a periodic system, atomic number 4, atomic weight 9,01218. It is called on a mineral to beryl. Light grey metal, mild and solid; firmness of 1,816 g / sm3, tïë 1287 °S. Above 800 °S it is oxidized up to VeO. Beryllium and his alloys apply in the electrical engineer, samoleto-and a rocket manufacturing, to berillium diffusion. In nuclear reactors - a decelerator and a neutron reflector. In a mix with Ra, Po, Ac - a neutron-source. Connections of beryllium are toxicant.

BERYLLIOSIS, occupational intoxication beryllium or his connections with a defeat of wind - pipes.

BERYLLIUM OXIDE, VeO, colourless crystals; tïë 2578 °S. A refractory and chemical-resistant material for special ceramics, a decelerator and a neutron reflector in nuclear reactors.

BERING (Behring) Emil Adolf (1854-1917), a german microbiologist, the immunologist. Has offered antitetanic and antidiphtherial antitoxiferous wheys, has developed a way of an active immunization against a diphtheria. The Nobel Prize (1901).

BERING the ISLAND, in group Komandorskih of islands (Russian Federation). 1,7 thousand êì2. An altitude up to 751 m. It is coated primarily with tundra vegetation. Lairs of marine sea - bears, eared seals. It is called named V.Bering.

BERING STRAIT, between mainlands Eurasias and the Sowing. America. Bridges the Sowing. Ledovityj ok. With Quiet ok. Length of 96 kms, the least width of 86 kms, a critical depth of 36 m. It is called named V.Bering. In the middle Beringova a channel, between islands Diomida, the frontier of the Russian Federation and the USA passes.

BERIO (Beriot) Charles Ogjust (1802-70), the Belgian violinist, the composer. The virtuoso, the founder national skripichnoj schools; 10 concerts for a violin with an orchestra, plays for a violin and a piano; " Skripichnaja school ".

BERISLAV, city (with 1784) on Ukraine, the Kherson region, in 12 kms from zh.-d. An item. Cossack, landing stage on water reservoir Kahovskom. 17,7 thousand inhabitants (1991). Machine works; the alimentary enterprises. A historical museum. It is based in 15 century.

BERITASHVILI (Beritov) Ivan Solomonovich (1884/85-1974), the Georgian physiologist, the creator of the Georgian school of physiologists, academician AN the USSR (1939), AN Georgia (1941), AMN (1944), the Hero Socialist Transactionses (1964). Transactionses on physiology of the maximum nervous activity and central nervous system. Probes of a physiological, psychologic and physico-chemical fundamentals of memory. The state premium of the USSR (1941).

BERISHA (Berisha) Grease (r. 1944), the president of Albania since April 1992. The leader ruling (since March 1992) Democratic party of Albania (it is built in 1990) in September 1991-April 1992.

BERK (1209-66), khan of Golden Horde, junior brother Batyja. At Berk Zolotaja Orda it was actually isolated from the Mongolian empire.