The rising tides. In 1777 Laplas made a report in the Paris academy about the rising tides and the falling tides. Their first model was considered by Newton and Kepler so that the rising tides and the falling tides were caused by the Moon and the Sun. This theory was developed by I. Bernully, Ailer and d'Alamber. Their scheme about the rising tides following on two directions (one to the Moon and the other to the Sun) was suited the non deep ocean in the stable planet. ...

Nowadays at the Department the experimental and theoretical investigations, including astronomical and ionospheric observations, active experiments with space vehicles are taking place. ... Solar Corona physics and erruptive phenomenae. ... Stellar astronomy. ... The Department has organized and put into practice more then 50 expeditions for observation of Solar ecllipces, aurorae polaris, comets, meteor streams, controlled space experiments, and also for investigations of geophysical characteristics. ...

Armagh Observatory and Planetarium Appointment of Members to the Management Committee The Department of Culture, Arts and Leisure is seeking to appoint up to four members to the Management Committee of Armagh Observatory and Planetarium. ... Late applications will not be considered. ... Diversity in Public Appointments The Department of Culture, Arts and Leisure is committed to the principle of public appointments based on merit with independent assessment, openness and transparency of process. ...

... stars . ... Could gas giants be considered stars that failed to ignite? ... The distinction between gas giant planets and brown dwarfs ("failed stars") is a vague one. ... It depends on what gas giant youт??re looking at and how you distinguish a т??planetт?? from a т??failed star.т?? A gas giant found in orbit around a star might be considered a planet like Jupiter around the Sun. An isolated gas giant is probably a failed star. ... Get instant access to subscriber content on Astronomy.com! ...

... 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. ...

... 21.06.2000 . ... Ganymede: The Largest Moon in the Solar System . ... A jet stretching nearly a million light years has been imaged emanating from galaxy Pictor A. The thin jet of electrons and protons shoots out at nearly light-speed likely from the vicinity of a large black hole at the galaxy center. ... APOD is Five Years Old Today . ... What can 100,000 galaxies tell you? ... The Keyhole Nebula in Infrared . ... A Bubbling Galaxy Center . ... What's happening in the center of this galaxy? ...

. V L B I L a b o r a t o r y .

... COMPUTER SIMULATION OF RADIOWAVE MULTIPLE SCATTERING EFFECTS IN IONOSPHERE USING MONTE-CARLO METHOD . ... Distribution of reflected radiation on the ground is computed. ... Such influence can be remarkable if the scattering is multiple, i.e. the optical thickness for the scattering process is considerably greater than a unit. ... Radiation energy transfer in the slab is modeled by distribution of some particles carring small portions of radiation energy. ... The isotropic plasma approximation is...

... Russian Academy of Sciences, . Sibirian Department, Yakutsk Scientific Center . Directors: Germogen F. Krymsky, Director, corresponding member of Russian Academy of Sciences . Evgeny G. Berezhko, Deputy Director . ... The main scientific directions are physics and astrophysics of cosmic rays, physics of solar-terrestrial interactions, investigations of interplanetary and near-the-Earth space, physical processes in magnetosphere and ionosfhere of the Earth. ...

CATALOG OF CONSUMER GOODS . KEY TECHNOLOGIES FOR CONSUMER GOODS PRODUCTION . ... ELECTRIC MOTOR . Electric motor йо580е.2000-0 . ... Ac commutator motor. Power rating of electric motor, 260 W. Operating mode, short-term. Output shaft speed, 21000 ± 2000 rev/min. Rotational direction of output shaft - counterclockwise. ... Motor mass, maximum - 1,2 kg. ... DIVERSIFICATION OF PRODUCTION . ... Official WEB-site of S.P.Korolev RSC Energia . ...

... Next: Unsupervised Catalog Classification Up: Object Detection and Previous: Classification of Objects . ... Multi-resolution allows for image analysis in terms of different scales. ... This approach is used for the detection (and subsequent analysis) of globular cluster systems around elliptical galaxies, and for image characterization and object trawling in large image databases. ... The applicability of this approach to object detection in large image collections has been investigated. ...

The IAA RAS . ... Dissertation council . ... International collaboration . ... Awards and honors . Government awards . The IAA RAS Medal . ... Laboratory of astronomical year-books . ... Department of Radio Astronomical Facilities . ... Department of radio astronomical observations . ... Radio astronomical observatory "Svetloe" (Priozersk department) . Radio astronomical observatory "Zelenchukskaya" (Zelenchuk department) . Radio astronomical observatory "Badary" (Irkutsk department) . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Solar System . ... Moon . ... Comets and Asteroids . ... What changed our view of Chariklo is the discovery of a ring system around it, the first such feature found around a Solar System body smaller than a gas giant planet. ... Almost certainly the rings were born when a collision with a smaller asteroid blasted millions of tonnes of debris off CharikloтАЩs surface. ... A ring system detected around the Centaur (10199) Chariklo (Braga-Rigas et al.) ...

... part 1 | ... The Basic Stages in Earth's Pre-geological Development . ... After fragments of the Vortex sleeves separated, whirlwinds of second and third orders ("NC" - new micro-vortex) were generated- future planet cores and their satellites - all of them developing independently, governed by the common laws of development of cosmogenic vortexes. ... Our planet's core today is comprised of considerably deteriorated cosmogenic vortex; consequently, the Earth has a moderated magnetic field. ...

... Exposure Time Calculator (ETC) . Survey processing . ... VISTA is a 4-m class wide field survey telescope for the southern hemisphere, equipped with a near infrared camera (1.65 degree diameter field of view at VISTA's nominal pixel size) containing 67 million pixels of mean size 0.34 arcsec and available broad band filters at Z,Y,J,H,K s and a narrow band filter at 1.18 micron. A wide field visible camera, if constructed, could also be used on VISTA. ... Tile . ... ESO VISTA Public Surveys . ...

Research School of Astronomy & Astrophysics . ... The Research School of Astronomy & Astrophysics was created by Council in August, replacing the entity Mount Stromlo & Siding Spring Observatories. ... Number of Nights Allocated for External or Collaborative Use on MSSSO Telescopes During 1998 . ... The first entry of each pair is the number of nights allocated entirely for external use; the second is the number of nights allocated for collaborative projects involving MSSSO and external researchers. ...

... Samara region . ... International relations . Scientific Publications . ... Events International Scientific and Technical Conference "Advanced Information Technologies AIT-2015" . ... Prokhorov S. A. - Doctor in Technical Sciences, Professor, Head of the Department of Information Systems and Technologies (IST) . ... Information Technologies in Transport; . ... Samara State Aerospace University named after academician S. P. Korolev, Department of Information Systems and Technologies. ...

... 1.7 GSC 084 Pulkovo Obs., 0.33 15 x 15' 1.0" 7 34 0.179 0.307 Normal Asgr. 3.0 UCAC 118 Slovakia, 0.57 14 x 10' 1.7" 3 12 0.090 0.145 Modra 3.3 USNO 127 Germany, 0.19 30 x 20' 2.4" 3 15 0.151 0.087 Bornheim 0.8 GSC 168 34 200 0.282 0.315 291 USA,Kitt Peak, 1.8 390 x 30' 1.0" 1 5 0.143 0.144 Spacewatch II 4.7 USNO 300 Japan, 0.5 78 x 78' 2.3" 7 36 0.420 0.447 Bisei Center 1.3 ACT 461 Hungary, JATE 0.60 28 x 19' 1.1" 6 22 0.124 0.153 Asteroid Surv. ... Polynesia 1.0 UCAC F85 Tiki Obs., ...

Appendix A: Derivation of the Secondary Sag as a Function of Telescope Altitude . One-half of the secondary support structure consists of the two rods shown in Figure 9 plus the opposing rods on the other side of the secondary cage. The total tension force on a single rod can be decomposed into a thermal component and a base tension that is set at the time when the rods are originally tensioned with the turnbuckles. ... The axial force balance equation is then given by . ...