... More than 300 surface reconstructions are already known for pure Si surface and Si surface with adsorbate. Study of their properties by the methods of surface physics reveal numerous interesting phenomena including various phase transitions accompanied by changes of Fermi-surface topology, development of the charge-density wave, etc . ... The charge-density wave (CDW) develops in materials with a chain-like crystal structure at temperatures below the Peierls transition temperature. ...

... Астрономия для всех (Модераторы: Deimos , AAV ) ? Нулевой меридиан . ... Сообщений: 164 . ... Скажите пожалуйста, как определяется нулевой меридиан для Луны, планет (в особенности, Марса) и их спутников? ... Записан . ... Они выбрали маленький круг (кратер) как точка справки когда они произвесли первую систематическую карту черт Марса в 1830-32 г. Нулевой меридиан Луны находится прямо в середине стороне Луны видна с Земли. ... Вот, нашел немножко на http://en.wikipedia.org/wiki/Prime_meridian . ...

Cairo, Egypt . Cairo is the capital of Egypt and the largest city in the Middle East. Although Cairo itself is only about 1,000 years old, parts of the metropolis date back to the time of the Pharaohs. ... In the 19th century, one of the city's rulers, Khedive Ismail (1863-1879), sought to transform Cairo into a European- style city. ... Although a housing crisis has been broadcast by the international news media, it is estimated that Cairo may have a surplus of some 1 million housing units. ...

... University Conferences . ... Series . ... History of Ukraine. ... History? ... Mathematics, Applied Mathematics and Mechanical Engineering? ... Physics? ... Antiquities (Kharkiv Historical and Archeological Yearbook) . Drinov Journal . ... Pedagogy Department Journal of Collected Articles . ... Web site: http://periodicals.karazin.ua/pse . ... Low-temperature plasma physics and engineering; . ... Phone: +380 (57) 7051248 . ... Copyright 2010 V.љN. Karazin Kharkiv National University. ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Antenna system . ... The Irkutsk incoherent scatter radar is one of the world's nine active radars which give the opportunity to investigate ionosphere by the incoherent scatter method. ... Antenna gain coefficient . ... Antenna . ... Two antennas . ... To get an idea what station "Dnepr" antenna system looks like, let us consider some of the radar views which are given by the photographs General view and Side view . ...

Bright Supernova - Archives On these pages you will find references to Supernovae which have faded into oblivion. ... Finally, in 1999, when I took over the International Supernova Network's Latest Supernovae page I retitled the main page "Latest Supernovae", BUT, it's the "Latest Supernovae" page of the "Bright Supernovae" pages which are also sub-pages of ISN. ... Brightest supernova in 2005 . ... Brightest supernova in 2002 . ... Brightest supernova in 2000 . ... Brightest supernova in 1999 . ...

EVOLUTION OF GALACTIC DISCS: TWO MODES OF STAR FORMATION ABSTRACT We develop the model of the evolution of surface gas density, stellar density, star formation rates and chemical composition of galactic disc taking into account the gravitational instability of rotating gaseous layer in the scales of several kpc. ... In the model we took into account the gas return from evolved stars, a radial movement of the gas in a spiral arms and accretion of the gas into the galactic disc. ...

... OF ROCKET SPACE TECHNOLOGY DEVELOPMENT . OKB1 - TSKBEM - NPO ENERGIA - S.P.KOROLEV RSC ENERGIA . 1961-1968 . ... April 26, 1962 . Launch of the Zenith satellite to take pictures of the earth's surface. ... Launch of the Mars-1 unmanned interplanetary station that reached the Mars area on June 19, 1963. ... 1946 - 1949 1950 - 1957 1957 - 1959 1959 - 1961 1961 - 1963 1964 - 1966 1967 - 1969 1971 - 1977 1977 - 1982 1986 - 1987 1987 - 1990 1992 - 1998 1998 - 2000 2000 - 2001 2001 - 2008 . ...

... MASTER Net is 56 square degrees per 1 exposition . ... 06 Dec 2015: GRB 151205B: MASTER-NET early optical observations GCN18665 . ... 18 Nov 2015: GRB 151118A: MASTER-NET optical observations GCN18613 . ... 12 Nov 2015: GRB 151112A: MASTER-NET optical limit GCN18591 . ... 07 Nov 2015: GRB 151107A: MASTER-NET optical observations GCN18565 . ... 31 Oct 2015: Five OTs detected by Global Robotic MASTER Net ATel8232 . ... 02 Oct 2015: GRB 151001B: MASTER-NET early optical observations GCN18380 . ...

... About meteorites . ... Meteoritic data . ... About laboratory . ... The lake is like a round mirror 200 meters in diameter, surrounded by a ring wall 350-400 meters across. ... The ring wall, especially well preserved along the southeast shore of the lake, the steep banks and the great depth, all indicated that at one time there had been a powerful explosion here. ... It is possible that the depth may have been 40 meters before but that the slumping of the banks was helping to decrease the depth. ...

pic] [pic] Cosmic ray registration on the Earth's surface and in the atmosphere Программа фундаментальных исследований ОФН РАН: «Солнечный ветер: генерация и взаимодействие с другими планетами» Проект: «Эффекты модуляции космических лучей солнечным ветром» Исполнители: проф. О.М. Распопов, СПбФ ИЗМИРАН, oleg@OR6074.spb.edu проф В.А. Дергачев, ФТИ, v.dergachev@pop.ioffe.rssi.ru 2003 г.: «Долговременные тренды в модуляции космических лучей солнечным ветров за последние 150 лет (предварительный анализ» | ...

MAIN PAGE . ... Nova Cygni August 1975! ... 1975/76: Comet West! ... Dr. Richard West (4th from left) & AAL members visiting SES Betzdorf on occasion of our club's 25th anniversary - October 1996 . Comet West Information . ... It was the brightest comet visible from Earth since Comet West in 1976. ... 1997: Comet Hale-Bopp! ... Thus Comet Hale-Bopp never got closer to Earth than Earth gets to the Sun. ... Comet Hale-Bopp JPL Page . ... 1999: Total solar eclipse over Luxembourg! ...

NMW survey overview . Access image archive . ... The New Milky Way survey aims to detect bright (V<13.5) optical transients near the Galactic plane using an automated wide-field (8x6 deg.) system capable of surveying the whole Milky Way area visible from the observing site in one night. ... All images obtained during the transient search survey are available online (please use the image archive access form ). ... Images per field: . ... Images per night: . ... Milky Way imaging time: . ...

J2000 name -- a 10 letters long name of the source in notation Jhhmmdddmm where hhmm are hours and minutes in right ascension, dddmm are degrees and minutes in declination at the J2000.0 epoch. No rounding is performed.

Альтернативный форум . ... Abramyan G.L. (@) - 10.01.2007 01:10 . Astronomers Create 3D Map of Dark Matter Space.com 07 January 2007 01:37 pm ET . ... Re: Astronomers Create 3D Map of Dark Matter Space.com 07 January 2007 01:37 pm ET Котофеич, 10.01.2007 13:55 . Re: Astronomers Create 3D Map of Dark Matter Space.com 07 January 2007 01:37 pm ET Анатолий Рыков, 10.01.2007 11:20 . ... Astronomers Create 3D Map of Dark Matter Space.com 07 January 2007 01:37 pm ET Abramyan G.L., 10.01.2007 01:10 . ...

... 16-mm/2.8 Fish-eye . ... I set up my Edixa Prismaflex TTL on a tripod outside the dome at Zeiss 50" and opened the camera for several hours. The 2.6 m Shain reflector is visible at center. The time exposure of about 5 hours duration showing circumpolar stars. The dome can be seen to blur slightly due to their motion during the exposure. Back to Astronomical Images Home Page . ...

... Full silvery Moon illuminates terrain. ... Begun a next moon eclipse, when Land barriers a Moon from the Sun and throws its shade on it. ... Drawing 1. ... Drawing 6 Drawing 6 shows a splendid photo of full moon eclipse 18-19 november 1975 during is packed phases doing Dennis de Chikko. ... Eclipse, which will occur 9 november 2003, is a repetition through сарос (cycle of repetitions of eclipses equal 6585 days or 18 years 11 days) full moon eclipse from 28 octobers 1985 with the maximum phase 1,07....

... Cooling and thermal control system (CTCS):an angle between normal of thermal radiator plane (Z-axis) and vector "SC-Sun" must exceed 90 deg.. ... The axes of the first two sensors are in the plane YOZ; they have an angle of 35 degrees with Y and -Y axis being inclined to the direction of -Z axis. ... 30 degrees for Sun; . ... An angle between +Z-axis and direction to the Sun center must exceed 90 degrees. ... An angle between direction "SA-Sun(center)" and XOZ plane must not exceed 30 degrees. ...

Главная Проекты Mars Exploration Rover . ... With far greater mobility than the 1997 Mars Pathfinder rover, these robotic explorers will be able to trek up to 100 meters (about 110 yards) across the surface in a Martian day. ... The rovers will be identical to each other, but will land at different regions of Mars. ... Where Pathfinder had scientific instruments on both the lander and the small Sojourner rover, these larger rovers will carry all their instruments with them. ...

... A Р?galitР? d'objectifs, elles permettent d'obtenir des grossissements plus considР?rables, parce que les rayons lumineux qui traversent les lentilles perdent moins par l'absorption que par la rР?flexion sur le miroir mР?tallique des tР?lescopes. ... Le tР?lescope des montagnes Rocheuses. ... Qu'allaient-ils dР?couvrir dans le champ de ce tР?lescope qui grossissait quarante-huit mille fois les objets observР?s? Des populations, des troupeaux d'animaux lunaires, des villes, des lacs, des ocР?ans? ...