... Пока я работал над своим 115-мм сферическим зеркалом, у меня появились хорошие знакомые среди курских любителей астрономии. ... Моя 158-мм заготовка имела правильную цилиндрическую форму, вполне удовлетворительно отшлифованную боковую поверхность и грубо обработанные плоские поверхности. ... Как правило, эта работа совмещается с обдиркой и грубой шлифовкой. ... Таким образом, я начал с вышлифовывания первоначального, грубого углубления рабочей поверхности зеркала, "обдирки". ... Центр зеркала . ...
Глава 2. ... Большинство исследователей в области космогонии, хотя и далеко не все, полагает, что Солнечная система возникла 4-5 млрд. лет назад и с тех пор не подвергалась значительным изменениям. ... Увеличение небесных тел . ... Рост небесных тел происходит, во-первых, за счет вычерпывания диффузной материи небесными телами, во-вторых, за счет падений на небесные тела Солнечной системы других, меньших по массе и размерам небесных тел; и в-третьих, за счет конденсации диффузной материи. ...
... Observing springtime deep-sky objects with a large telescope . ... Buy and sell astronomy gear April 9 . ... Astronomy.com: Jim Forbes . ... A refracting telescope makes use of this property with a carefully made lens having curved surfaces. ... The first telescope (of any type) was constructed by the Dutch spectacle maker Hans Lippershey (1570 1619) who, on October 2, 1608, filed a patent application for "an instrument for seeing faraway things as though nearby." ... Buying your first telescope . ...
Effective immediately, most commercial advertising on Astronomy Net is handled through Google Ads. Click on the "Advertise on this site" link on any of those Google ads to find out more. ... The Google advertising statistics reveal the Astronomy Net effective CPM range from $2 to $15 depending on web site page. ... That may be great for some sites, but do not expect your targeted ads to ever show up on Astronomy Net as these ads must compete with the "Keyword Targeting" ads. ...
... Новости ? История ? ... Новости астрономии и . ... астрономии . ... освоение космоса . ... Главный раздел сайта - практическое освоение космоса - уникальные космические проекты вчерашнего, сегодняшнего и завтрашнего дня! ... Наука и жизнь на международной космической станции... 11 марта 2001 г. России необходим новый "Мир" . Президент России должен в ближайшее время издать указ о создании новой национальной космической станции взамен станции "Мир" . ... Космические ядерные ракетные двигатели . ...
Astronotes Armagh Planetarium's Stellar Blog! ... Solar System . ... Space Flight . ... This is a recent (November 2011) NASA diagram summing up the past, present and future (plus a might have been) of US rocketry. €аThe rockets are arranged from left to right in order of size. ... It is towards the larger end we find the most familiar vehicles in the shapes of the Shuttle (NASA?s recently retired Space Transportation System ) and Saturn 5 (still the most capable US launch vehicle to actually fly). ...
... Любителям астрономии . ... Проект LFVN . ... История сайта ?Астрономия и Телескопостроение? начинается с 1999 года, когда в сети Интернет была опубликована любительская страница ?Для тех, кто не может равнодушно смотреть на небо? с информацией об отечественных производителях телескопов. ... Мы приглашаем любителей астрономии и астрономов-профессионалов для сотрудничества как для работы над сайтом, так и для участия в различных инициативных проектах, о которых вы можете узнать на его страницах. ...
... I?ve talked about IMSL on my pyIMSL post, which is a commercial scientific library. There is a GNU version of IMSL, GSL. ... V. measurement error and EM and his comment. Continue reading ?GSL ? GNU Scientific Library? Tags: C/C++ , GNU , GSL , IMSL , Jiangang . ... Entries RSS . Comments RSS . ... vlk on [MADS] Parallel Coordinates . upvc windows on [MADS] Parallel Coordinates . ... Alfred Inselberg on [MADS] Parallel Coordinates . ... Entries (RSS) and Comments (RSS) . ...
FFT. the FFT is written in C for efficiency and dynamically linked into Java at run time ...year. ... We do not discount the possibility of a version of Grid being made commercially available but none-the-less we will always provide a free version for download.. ... 1995. ISO is an ESA project with instruments funded by ESA member states (especially the PI countries: France, Germany, the Netherlands and the United Kingdom) and with the participation of ISAS and NASA...state. ... Germany. ...
XmTel uses the XPA interface for extensible connection to the operating system and scripting. ... Support for several commercial telescopes and controllers under Linux .. ... Software Bisque Paramount ME (requires RTS2 library) . ... In the current version of XmTel .. ... Offers command line and scripted operation using XPA . ... Version 7 includes the XPA server, telescope drivers, a client, utility software, and a standalone option that does not use XPA. ... Previous versions and support for INDI . ...
Next: Back-End Signal Processors Up: The Arecibo Observatory and Previous: Available Receivers . All receivers at the Arecibo telescope use local oscillators locked to the station hydrogen maser frequency/time standard. Commercial synthesizers in the dome and carriage house are remotely controlled to provide the first LO. ... Next: Back-End Signal Processors Up: The Arecibo Observatory and Previous: Available Receivers Robert Minchin 2012-02-22 ...
... Acknowledging SDSS III: Non-Commercial Use . Non-commercial scientific and technical publications using SDSS-III and SDSS-IV data should include the specific acknowledgments for each: SDSS-III and SDSS-IV (see bottom of web page for SDSS-IV) . ... Acknowledging SDSS: Commercial Use . Data from the SDSS public archive may not be used for any commercial publication or other commercial purpose except with explicit written approval by the Astrophysical Research Consortium (ARC). ...
This document describes how to efficiently serve an arbitrary number of virtual hosts with Apache 1.3. ... get the server name from the Host: header UseCanonicalName Off # this log format can be split per-virtual-host based on the first field LogFormat "%V %h %l %u %t \"%r\" %s %b" vcommon CustomLog logs/access_log vcommon # include the server name in the filenames used to satisfy requests VirtualDocumentRoot /www/hosts/%0/docs VirtualScriptAlias /www/hosts/%0/cgi-bin . ...
... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des actualitГїs . ... Accueil Lire/Voir/Ecouter Lire/Voire/Ecouter . ... Lire/Voir/Ecouter . ... Dans quelques semaines, le plus cГїlГЕbre des lanceurs russes devrait prendre la route de l'espace depuis la Guyane. ... La trajectoire d'une pierre ou d'une lance est gnoquable" , mais hГїlas pour les vulgarisateurs contemporains, un espace-temps Г 10 dimensions ne l'est plus, pas davantage que l'horizon des ГїvГїnements d'un trou noir. ...
... Members . ... The ATM's of Boston was founded in 1934 by a group of persons interested in assisting others in the art of optical polishing the craft of telescope making, and to learn together about the science of astronomy and the use of astronomical instruments. ... Mr. Jones introduced the club to Dr. Harlow Shapley at Harvard College Observatory. ... Regular shop activities resumed with the help of these "professional amateurs" and the club grew to 180 members. ... Club Newsletters . ...
... Bad Astronomy . ... Bad Astronomy : Comets whiz across the sky in a few seconds. Good astronomy : Comets appear to move very slowly, usually taking days to noticeably move. ... The orbital periods of comets are measured in years; the most famous comet of all, Comet Halley (usually--- and incorrectly-- called ``Halley's Comet''), takes about 76 years to orbit the Sun just once. ... Now, when a comet gets near the Earth, it tends to be moving pretty quickly. ... Want to know more about comets? ...
Winer Observatory P.O. Box 797, Sonoita, Arizona 85637-0797, USA . ... Projects . ... 2/3-m Telescope . ... Site . ... Donations . ... In 1995, Hughes Danbury Optical Systems (now Goodrich Optical and Space Systems Division, Electro-Optical Systems) donated to Winer a 2/3-m (26.5-inch) Corning Ultra Low Expansion ULE lightweighted mirror. Using this donation as a basis, we entered into a project with a private, non-sectarian school to design and build a telescope for the school and one for us. ...
... Barbara Hubal . ... Hidden Hollow 2008 . ... May 2 - 4, 2008 . ... Barb's home club is the Richland Astronomical Society (RAS), where she is currently serving as club secretary. She's been into astronomy since 2002, when her husband Ken won a 6-inch Dobsonian telescope at a star party. ... Barb's been interested in Dobsonian telescopes, since she helped build a 6-inch f/8 Dob in 2005 for a local teenager. ... BDH/TJP 27-Jan-2008 ...