Monday, June 18, 2007

  • VOLKONSKY Mihail Nikolaevich (1860-1917), prince, the Russian writer, the playwright. Parody opera " Vampuka, princess African " (1900; see an item " Vampuka... "). Historical novels and stories (" Maltese a circuit ", 1891; " Will of destiny ", 1893; " the Ring of the empress ", 1896, etc.); stories, feuilletons, plays.
  • VOLKONSKY Peter Mihajlovich (1776-1852), the Russian general - field marshal (1850), svetlejshy prince (1834), the honorary member Petersburg AN (1813). The participant of Domestic war 1812. With 1826 minister for an imperial yard and destinies.
  • VOLKONSKY Sergey Grigorjevich (1788-1865), the decembrist, prince, the general - major. The participant of Domestic war of 1812 and oversea marchings. The member of " Soyuz of prosperity " and the Austral society, one of directors Kamenskoj of justice. It is convicted on 20 flying of penal servitude. With 1826 in Nerchinskih mines, in 1835-56 on a settlement in Irkutsk lips. In 1861 abroad it was pulled together to A.I.Gertsenom and N.P.Ogarevym.
  • VOLKONSKY Sergey Mihajlovich (1860-1937), prince, the Russian writer, the art critic, the theatrical figure. Grandson S.G.Volkonsky and M.N.Volkonskoj. Activities on problems of a general aesthetics; articles about theatre. Books " my memories " (t. 1-2, 1923-24), " About decembrists. On family memories " (1921). With kon. 1921 in emigration in Paris.
  • VOLLASTON (Vullaston) (Wollaston) William Hyde (1766-1828), the English scientist. Has discovered (1801) irrespective of I.Rittera a ultraviolet radiation, has constructed the refractometer (1802) and a goniometer (1809). Has discovered a palladium (1803) and rhodium (1804), for the first time has received (1803) in the pure state platinum.
  • WOLLASTONITE (table spar), mineral of subclass of chain silikates, Ca3 [Si3O9]. White, radiative and shelly units. Hardness 5-5,5; firmness of 2,9-3,0 g / sm3. By origin kontaktovo-metamorphic. Raw material for the thin ceramics; zvuko-and a heat insulator.
  • CORRUGATED PARROT, bird of order of parrots. Length ok. 20 sm (about half - a tail). In Center. Australia. It is well multiplied in a captivity. A plumage predominary green. White, yellow, light-blue, violet and other corrugated parrots are introduced.
  • VOLNOVAHA, city (with 1938) on Ukraine, Donetsk region. A railway junction. 26,4 thousand inhabitants (1989). The enterprises alimentary, a building materials of an industry, etc.
  • WAVE OPTICS, section physical the opticians, investigator set{combination} of such phenomena, as a diffraction of light, interference of light waves, polarization of light in which the undular nature of light shows.
  • UNDULAR DRIVE, mechanic drive (gear, friction, screw{propeller}); will consist of rigid and nonrigid elements (one of which is made fast) and t. n. The generator of waves. Due to a special kinematics of interaction between them undular drive ensures the considerable transmitting{gear} attitudes{relations} (> 100).
  • The WAVE FUNCTION (state vector), in a quantum mechanics a fundamental quantity circumscribing a system condition both permitting to find probabilities and average values of physical quantities defining her{it}. The square of a module of wave function is peer to probability of the given condition, therefore wave function call also as a probability amplitude.
  • The WAVEGUIDE, the channel, having a sharp cut-off along which are distributed electromagnetic (radio waveguide) or acoustical (acoustic waveguide) of a wave. A radio waveguide the metal tubing, the dielectric rod, etc. can minister; the acoustic waveguide - an acoustic tube on courts, layers of air in an atmosphere and waters in the ocean, distinguished on temperature (terrestrial waveguide).
  • SURGE RESISTANCE... 1) in soundman: in gas and a liquid - attitude{relation} of a noise load in a running flat sound wave to vibratory speed of particles of medium, it is equal to product{creation} of firmness of medium on a speed of sound in her; in solids for longitudinal waves surge resistance - attitude{relation} of the mechanic pressure{voltage;stress} taken with the sign reversed, to vibratory speed of particles of medium.... 2) In hydromechanics - a part gidro-and an aerodynamic drag, defining energy consumption on wave development, napr., the waves which are generatrix on a water plane at motion of the ship{spacecraft}, the shockwaves originating at ultrasonic flight of an airplane, and t. d.... 3) In an electrodynamics surge resistance of transmission lines - attitude{relation} of pressure{voltage;stress} to current intensity in any point of a line on which electromagnetic waves are distributed; surge resistance of medium - attitude{relation} of voltages of electrical and magnetic fields of the electromagnetic waves extending in medium.
  • WAVE EQUATION, differential equation with partial derivatives of 2-nd order, circumscribing a spreading mud process of disturbances in some medium. Napr., small oscillations of the stretched catgut are described by wave equation where u (h, t) - required function - deviation{rejection} of a catgut from static baycenter in a point with coordinate h in the moment t, a - rate of propagation of a disturbance along a catgut.
  • WAVE NUMBER, module of a wave vector; it is connected to a circular frequency w, a phase velocity of a wave vô and its{her} length a ratio: k=2?/?? w/vô. In optician and spectroscopies often call as a wave number value, revertive to a wavelength: k=1/?.
  • WAVE VECTOR, vector k which direction coincides a direction of propagation of a traveling wave. In isotropic mediums lengthways k the group velocity and energy flow of a wave are directed. In a quantum mechanics the condition of a unbound particle also is defined by a defined value of a wave vector, the bound with a pulse particles r a ratio de Brojlja: ð=hk.
  • "WAVE DUCT" (a director antenna, the Hook - the Yagi the antenna), the antenna by the way of some parallel linear electrical vibrators in length, close to 0,5 wavelengths located in plane along a line, conterminous to a direction of maximum radiance (method). The main{basic} application - method of television programs.
  • The WAVE PACKET, occupying restricted volume and a undular field transposed{dragged;moved} by the space. The wave packet can be decomposed for the sum of simple harmonic waves which frequencies lay in a fixed interval; the already a wave packet, the more this interval. At distribution{propagation} to medium owing to a wave dispersion the wave packet deliquesces. In a quantum mechanics the field of probability assigned to wave function is considered, and the wave packet is wave function driving particles which possible{probable} localization in each instant is limited to some small range of coordinates. Center of a wave packet goes with mechanic speed particles. The quantum mechanical wave packet in due course deliquesces even in vacuo.
  • WAVE ABSORBER, hydrotechnical construction for protection against waves of a dock space. Distinguish wave absorbers protective (surrounded with the water space) and beregozashchitnye (located directly inshore).
  • VOLNUHIN Sergey Mihajlovich (1859-1921), the Russian sculptor. Was close to peredvizhnikam. A monument to the first printer to Ivan Fedorovu in Moscow (1909), iconic busts.
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