... Fields: Each document is assigned a unique inventory code. Definitions reflect information commonly found on a document, i.e. title, number, vendor, dates, etc. Please read Fields for detailed definitions. ... details and history of the document.html locator . ... Links: An HTML locator is created when the document is coded. ... Document Files: Each inventory code is a separate document. ... Using the HTML locator links the user to the document. Database Home page | APO Home Page | ...

... Bad Astronomy . ... I think I will break from my usual format of Bad Astronomy/ Good Astronomy by saying that the way we define seasons currently is not strictly bad, but I feel (in my opinion!) that it could be better. The definition of when the seasons begin is at the moment of solstice or equinox; that is, winter (in the north) starts on December 22 nd and summer starts on June 22 nd . ... Now imagine breaking up the Sun's 46 degree up-and-down yearly swing into 1 day intervals. ...

... A measure of the success of the web-site is the annual number of distinct e-Visitors (DEVs) to Armagh, in fact the number of distinct hosts served by the Observatory's web-site. ... During 2003, the numbers of successful page requests (i.e. `hits') to files of all types on each of the three web-sites listed were 3,983,000 (7-month's data), 890,000, and 675,000 respectively, whilst an estimated 470,000 Distinct e-Visitors visited the three web-sites during the year. ... 80,000 . ... 134,000 . ...

... Activity 3: Measuring the Position of the Sun in the Sky . Purpose: To give students the opportunity to measure the position of the Sun in the sky using simple tools and methods. ... Alternatively, you may have students devise their own methods of relative measurement and apply them to measuring the position of the Sun in the sky. ... Rangi is the sky, and when the Sun is near Rangi's head it is summer in New Zealand. ... Read the Maori story to students. ... back to Teachers' Newsletter Main Page ...

... The general­purpose data reduction package FIGARO is now available to be run from the IRAF CL, and more Starlink applications will follow in due course. ... A system has been developed to enable packages written for the Starlink Software Environment to be run from the IRAF CL so that an IRAF user can mix and match application tasks from the two environments as required to process data, all under the control of the IRAF CL. ... Mixing IRAF and Starlink Applications -- FIGARO under IRAF 179 3. ...

Contractions versus extensions of holonomy maps of foliations and applications Julio Reb elo Consider a singular holomorphic foliation F on a pro jective surface. Over the leaves of F we can define real tra jectories over which the parallel transport of F yields a contraction for a natural way of measuring the distance between two leaves. ... It is then natural to consider foliations H containing a tra jectory of "infinite length" and foliations H all of whose tra jectories are of "finite length". ...

Russian Space Science Internet (RSSI) is a successful result of RSSI Project. ... space oriented organizations; . ... RSSI offers for its members : . ... videoconferences via MBONE Internet protocol (there are 2 tunnels available now through the general IP network: one to NASA Internet, and another to Moscow State University); . ... It is designed so that all organizations connected to the RSSI gain access to the resources of Russian computer networks as well as world wide Internet. ... nic@rssi.ru ...

... Credit Copyright: Drew Berry , WEHI , HHMI , DNALC Explanation: Every living thing on planet Earth is defined by its own molecule -- what's yours? ... The many copies of DNA that compose you were all copied from one single cell, and your body is continually making new copies. ... No one knows if DNA-like molecules will also define life that originates outside of Earth. ... 2011 2012 . ... Publications with keywords: life - molecules . Publications with words: life - molecules . ...

Perhaps the greatest theoretical achievement of physics in the 19th century was the discovery of electromagnetic waves. ... It is possible to use this to define a unit of electric charge, as the charge which repels a similar charge at a distance of, say, 1 meter, with a force of unit strength (actual formulas make this precise). ... But "field" originally only meant the force a magnet or an electric charge could expect at a point in space, if it were placed there. ...

.

With the aim of providing steady development of astronomy and spreading astronomical knowledge the Euro-Asian Astronomical Society (EAAS) and the Euro-Asian Association of Astronomy Teachers (EAATA) of the EAAS with the assistance of the P.K.Sternberg State Astronomical Institute (in Moscow), Special Astrophysical Observatory of Russian Academy of Sciences (in Niznij Arkhyz) and the Moscow-Regional ... The Coordinating Council forms an IAO jury for the period of holding the current Olympiad. ...

... 8, ``Celestial Mechanics'', 2002 Connection between apparent and real orbits of a binary system P. Descamps Institut de M'ecanique C'eleste et de Calcul des ' Eph'em'erides, Paris, France In a binary system, each body describes about the other an elliptical apparent orbit which is the projection of the real orbit on the tangential plane. ... 0.5 0.0 0.5 Dacosd (arcsec) ­0.5 0.0 0.5 Dd (arcsec) E N W ­0.5 0.0 0.5 Dacosd (arcsec) ­0.5 0.0 0.5 Dd (arcsec) E N W October 2001 November 2001 Fig. ...

Альтернативный форум . Scientific.ru Все форумы . Постоянные участники форумов [ .. ... Уникум - 03.11.2007 14:26 . ... АВР, 03.11.2007 14:51 . вернуться на форум ] . ... Андрей Петров, 04.11.2007 07:36 . Новый пророк? albinos, 04.11.2007 08:16 . ... Re: О пользе гравитации (супротив подпрышгивания!) ... Re: О пользе гравитации (супротив подпрыгивания!) ... Munin, 05.11.2007 14:19 . ... Re: За подпрыгивание и о пользе антигравитации Андрей Петров, 05.11.2007 07:52 . ...

... 400mm f/2.8 Nikor lens: images the sky on the entrance slit. ... The optical system maintains image quality along the slit length so that each row of the image is a spectrum of that spatially selected region of the sky. 180mm f/2.8 Nikor lens: collimates the light from the slit. ... The auxiliary optical platform on WISPI now accomodates a short focal lens and a guiding/imaging video system that may use sub-pixel corrections to provide feedback to the tracking drive motors. ...

Define region . ... Area/perimeter . Define a region of interest on a graph or graphs. Select the region, there are 5. ... Inside polygon . Points inside a closed, non-intersecting polygon are considered inside the region. ... In the polygonal region type, define the region by successive clicks with the left mouse button, use the right mouse button to register the polygon. ... Select the region to use. ... Click on Area or Perimeter and use the mouse to define the region. ...

... The VSOP Survey Continuum Source List . The radio sample for the VSOP continuum survey was defined to include all extragalactic radio sources with: . a total flux density at 5 GHz, S>=1.0 Jy . ... The sample also included all sources in the sky with a 5 GHz flux density S>5 Jy, regardless of spectral index and galactic latitude. ... The source would then be included in the VSOP sample (three of the sources were found with a flux density above 1 Jy and added to the sample). ...

... 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 . ...

Actor Prolog is well adapted for implementation of different methods of visual programming. ... To create a source SADT diagram it is possible to use any diagram tools with IDL format support (like BPwin (TM) PLATINUM technology, Inc. or Design/IDEF (TM) Meta Software Corporation). ... Consequently, Actor Prolog has to create two processes and guarantee the capability of message transmitting between them. ... class 'Receiver': -- entry_i1; value_i1; -- con; -- [ goal:-!. -- show ( _ ) :-!, con ? ...

... Behemoth black hole found in an unlikely place . ... Chandra and XMM-Newton provide direct measurement of distant black holeт??s spin . This first direct measurement of the spin of such a distant black hole is an important advance for understanding how black holes grow over time. ... The measurement of the spin of the RX J1131-1231 black hole is a major step along that path and demonstrates a technique for assembling a sample of distant supermassive black holes with current X-ray observatories. ...

This page will contain definitions (and basic references) of the following parameters: . cross-sections C ext , C sca , C abs , C bk ; . efficiencies Q ext , Q sca , Q abs , Q bk ; . ... TE/TM mode definitions for arbitrary shapes. Note that some parameters are defined in a quite different (specific) manner than for spherical scatterers, and some definitions in the book of Mishchenko et al. ...