... Произведение двух точных квадратов является точным квадратом. Если два целых числа представимы в виде суммы двух квадратов, то их произведение тоже представимо в виде суммы двух квадратов. ... Дальше стоит немного уточнить задачу: дело в том, что по теореме Лагранжа любое натуральное число представимо в виде суммы четырех (а значит, и большего числа ? ... Соответствующие алгебры суть вещественные числа R , комплексные числа C , кватернионы (числа Гамильтона) H и октавы (числа Кэли) O .) ...
... FTP access the basic models is here . ... Below, we put short descriptions of the used SED models for the photometric redshifts providing by the current server . ... The uniqueness of this model consists in expanding to the near IR (NIR) of Rocca-Volmerange and Guiderdoni's (1988) atlas of synthetic spectra with a revised stellar library, which includes parameters of cool stars. ... Homepage of the GISSEL model). ... Another model used earlier is the model of synthetic spectra of Poggianti (1997). ...
... 35, No. 2, pp. 8799. i Star Formation History in the Central Region of the Barred Galaxy NGC 4245 O. K. Sil'chenko1* , I. V. Chilingarian1, 2 , and V. L. Afanasiev 1 2 3 Sternberg Astronomical Institute, Universitetskii pr. ... The galaxy has been found to possess a pronounced chemically decoupled compact stellar nucleus, which is at least a factor of 2.5 richer in metals than the stellar population of the bulge, and a ring of young stars with a radius of 300 pc. ... NGC 4245. ...
The main task of the multimedia lectures "Life of the Earth in the Solar Atmosphere" is to introduce wide range of users to the basic physical characteristics of the Earth, the near-Earth space and the Sun, which mainly forms the properties of the mentioned objects and is responsible for their variations (so-called "space weather"). ... Middle atmosphere of the Earth. ... Radiowaves' passing and spreading in the Earth atmosphere. ... Space radiation passing through the Earth atmosphere. ...
... http://xray.sai.msu.ru/~polar/sci_rev/05_02_15-28.html#astro-ph/0502329 . ... Authors: S. D. Hyman et al. http://xray.sai.msu.ru/~polar/sci_rev/05_03_01-10.html#astro-ph/0503052 . ... Authors: David Charbonneau et al. http://xray.sai.msu.ru/~polar/sci_rev/05_03_21-31.html#astro-ph/0503457 . ... Authors: K. Y. L. Su et al. http://xray.sai.msu.ru/~polar/sci_rev/05_04_01-10.html#astro-ph/0504086 . ... Authors: O. Le Fevre et al. http://xray.sai.msu.ru/~polar/sci_rev/05_09_11-30.html#astro-ph/0509628 . ...
The low aspect ratio, or spherical tokamak Globus-M [1] has recently been built in a support of international spherical tokamak plasma investigation program. ... The survey to determine the work scope in diagnostic design for Globus-M is given in the paper. ... The next one is an advanced diagnostic set intended to supply the data on basic plasma parameters: electron temperature and density profiles, ion temperature, plasma composition, radiation profile, Zeffective. ... Magnetic Diagnostics. ...
. Webcams . Networking . Weather . Power . System health . Measurements . Sky status at Sun Apr 10 00:24:00 2016 is Clear Sky status at Sun Apr 10 00:24:00 2016 is Clear . Copyright 2007 2013.
... Comments, Opinions Publications Dnepr Program . Dnepr launch record 17 August 2011. Cluster Launch of Dnepr LV 22 August 2013 KOMPSAT-5 Launch 21 November 2013. Dnepr Cluster Mission 2013 19 June 2014. ... Baikonur Cosmodrome Yasny launch base Downloads . ... DubaiSat-2 (customer Emirates Institution for Advanced Science & Technology (EIAST)) and STSAT-3 (customer Korea Aerospace Research Institute (KARI) satellites were delivered to Yasny Launch Base on October 24, 2013. ... 25.10.2013 . ...
... We thank the Swift team for their rapid scheduling of this observation. ... 2455705.20851 V 14.15 0.03 2455707.83079 V 14.10 0.03 2455710.84028 V 13.53 0.02 2455713.64631 V 13.66 0.02 2455714.65479 V 14.11 0.03 2455714.71823 V 14.12 0.02 2455714.78596 V 14.20 0.02 2455717.39593 V 14.37 0.03 2455726.62861 V 14.83 0.04 2455727.16343 V 14.57 0.04 2455730.50586 V 14.57 0.03 2455730.57329 V 14.56 0.03 2455730.70360 V 14.66 0.04 2455738.32865 V 14.00 0.02 2455742.86146 V 14.21 ...
XPA version: 2.1.15 exposure: exposure on/off [time] file: file basename filter: filter number instrument: instrument name interrupt: interrupt mode: mode single/focus/multi multicount: multicount number number: image number process: process on/off region: region on/off [ds9/clear/select x y w h] relay: relay mask time status: on/off target: target name telescope: telescope name temperature: temperature setpoint type: type light/dark/bias/flat
... 8 AAAP Meeting The Space Elevator is coming to Princeton! ... Program Chair Michele Novatski has invited Michael J. Laine of the LiftPort Group, Bremerton, WA, (http://liftport.com), who will present "Space Elevator- Countdown to 2018". ... To bring this vision to Winter Observing. ... For me, CCD astronomy is the way to go. life requires commitment and work by the members. ... Swift has successfully begun its mission to study gamma-ray bursts and identify their origins. ...
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Ссылки http://www.princetonastronomy.org/newsletters/02_2005sidereal.pdf -- 257.5 Кб -- 30.01.2005 Похожие документы
... General astronomy . ... PHYSICAL CONSTANTS.. ... Nobel Laureates in Physics 1901-2002 . ... Lectures Astronomy-161 "Solar System" (Also it contains info about History of Astronomy) . ... The History of Science . ... College-Level Astronomy Courses - at American, Australian Universities and Colleges . ... Messier: . ... Science . ... Scientific American . ... JOURNAL OF COMPUTATIONAL PHYSICS . ... Scientific Journals . ... American Physical Society Journals: Physical Review, Review of Modern Physics ...
... The bright supernova (hereafter SN) in the galaxy NGC 4527 was first sighted by S. Knight (USA) on April 13.17UT at magnitude ~14.0v. The report of the sighting was subsequently forwarded by phone to the AAVSO. ... SN 1991T. The galaxy NGC 4527 is an Sb(s)II type galaxy with an apparent Blue magnitude of 11.32 (Shapley-Ames, 1981). ... An analysis of this event utilizing visual observations by amateurs, plus a light curve is presented.. ... THE LIGHT CURVE: . ... ISN SN 1991T web page . ...
... Fifteen years ago, on February 20, 1986 the launching of the Core Block marked the beginning of the Mir Orbital Station construction. Currently the Mir Station consists of 6 modules. ... The Mir Station total mass is near 130 tons. ... For sinking unburned Mir Station fragments after reentering atmosphere a Southern Pacific Ocean area limited by the following point coordinates: 53 њ S, 175 њ W; 23 њ S, 175 њ W; 23 њ S, 132 њ W; 30 њ S, 127 њ W; 30 њ S, 90 њ W; 53 њ S, 90 њ W is choosen. ...
... Space activity at the beginning of XXI-st Century view from inside G.M.Chernyavskiy STC for Earth Space monitoring of FSUE , Russia 1. The systemic approach in astronautics Everyone who has linked his life with astronautics and those who are interested in the future of the inhabitancy medium and its expansion up to cosmic scales, are troubled about the current state and development of space activity in the World and in the Native Land of the first artificial Earth satellite (AES). ...
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Ссылки http://resurs.cpi.space.ru/files/Space_activity_at_the_beginning_of_XXI-st_Century.doc -- 160.5 Кб -- 16.08.2012 Похожие документы
... за 1 триместр и 1 полугодие 2010 - 2011 учебного года . ... Незнамова Анастасия - 7 B . ... Усачева Александра - 10A . ... Давыдова Анастасия - 10A . ... Президент КИДа Артур Шиндяпин, ученик 10 класса. 26 сентября 2010 года праздновался "Европейский день языков". ... 1 место - Анастасия Томарова (6А) . ... A reward for a good idea - Анастасия Гурьянова 6Б . ... 1 место - the 7 A team (captain A. Blinov) . ... The results of the supporters` comtest 1 место - the 7 A supporters (E.P. Sharkova) . ...
NEWS FEDERATION rus ENCYCLOPEDIA rus HISTORY rus MIR STATION RUSSIAN . ... Cosmonauts. ... Launches . ... Launch Vehicles. ... Space Science . Military Space . ... Launch of Foton-M microgravity research mission on October 15 ended in a disaster due to a foreign piece of metal in Soyuz strap-on booster's hydrogen peroxide pump. ... Foton-M: The First But Not The Last One . ... European gamma-ray observatory was successfully launched by Russian Proton just two days after the Plesetsk failure. ...
. Webcams . Networking . Weather . Power . System health . Measurements . Sky status at Sat Apr 9 22:28:00 2016 is Clear Sky status at Sat Apr 9 22:28:00 2016 is Clear . Copyright 2007 2013.
... GRIN lenses for telecommunication optics applications ? GTC (gradient telecom) lenses. ... GTC lenses are used in different fiber-optic devices: collimators, couplers, isolators and WDM etc . ... 2.Diameter . GTC lenses diameters are 1.0 mm, 1.8 mm, 3.0 mm and 4.0mm. ... 1.0 mm -3.0 mm diam GTC lenses are supplied in 0.22P, 0.23P, 0.25P, 0.27P and 0.29P length. 4.0 mm diam GTC lenses are supplied in 0.11P length. ... GTC . ... 3 scratches with 5mkm max width and 200mkm max length are allowed . ...