This lesson is intended as a revision of basic direct-current (DC) circuits . It was discovered in the 19th century that certain materials (so-called ideal resistors) have a current through them I that is proportional to the potential difference (voltage) across them V. This is not a fundamental law of physics (like momentum conservation) but is an observed behavior which some materials roughly follow (like the friction law we covered earlier in the course). ... This equation is called Ohm's law. ...

... The star formation rate (SFR) of the current SF episode can be estimated from the total H luminosity. ... For the derived total flux F (H )=5.8 erg s -1 cm -2 we obtain a total H luminosity of 10 39 erg s -1 . ... The total mass of ionized gas can be obtained from the average mass density inside the H II region and its volume. An average mass density corresponding to the average electron density of 1 cm -3 within a volume with a diameter of 0.5 kpc yields a total ionized gas mass of 10 6 . ...

... 88.0, THAT GIVES FOR 28 MONTH (2011, APRIL) DEVELOPMENT CURRENT 24 CYCLES OF SOLAR ACTIVITY THE SMOOTHED MONTHLY MEAN SUNSPOT NUMBER W*apr.= ... 137.3 --------------------------------------------------------------------------- Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 31 - 06.11.2011, Forecast on 07 - 14.11.2011, Carrington Rotation 2016 (19,99.10.2011) SOLAR SUNSPOT ACTIVITY OF THE LAST PERIOD CHANGED FROM AVERAGE TO HIGH (3.11) AND BACK TO THE AVERAGE. ...

... In 1930, Trumpler noticed that linear diameters (LD) of open clusters increase with distance (D) from the Sun. ... Since that time, the interstellar absorption has become one of the best studied factor in astrophysics, and we may hope that current OCL distance scales are free from this LD-D correlation. To verify if this is the case we have chosen several modern OCL distance scales and test them with the same clusters and the same angular diameters that Trumpler had used back in 1930. ...

Novermber 2008 - WORK IN PROGRESS We are currently using the (just announced end-of-life) Netrestore software to install our systems. ... We automount our NFS-based home directories. ... On the Mac end, edit /etc/autofs.conf, and add ",resvport" to the AUTOMOUNTD_MNTOPTS. ... This is more of a problem, because Finder is a busybody, sticking it's nose in business it shouldn't. Simply symlinking to an autmounted directory failed abysmally. ... Here's our current list of files we change, and why: . ...

Next: Date conversion functions Up: Command line procedures Previous: Analysis procedures Contents . list_names [, names _char ] List HDS objects at current level. Store in parameter, if given. list_tree List HDS tree beginning at current level. list_scans [, index ] List observed scans, stars, times, stations, and codes. If index is specified, list only these scan IDs. list_bgscans List stars and back ground scans. list_stars [, stars _char ] List stars present in currently loaded data. ...

. Секция «Солнце» . Предварительная повестка дня . Пятница,   29 мая . 14:00–14:15 А. И. Подгорный, И.М. Подгорный.   Солнечная вспышки – модель и сравнение с наблюдениями. 14:15–14:30   Ю .В. Думин , Б.В. Сомов. Топологическое инициирование быстрого магнитного пересоединения . 14:30–14:45 П.А.   Грицык ,   Б.В. Сомов. Модель толстой мишени с обратным током и современные наблюдения солнечных вспышек. 14:45–15:00 Н.П.   Колесников, С.И. Безродных, Б.В. Сомов. Расчет течений плазмы в приближении сильного

Next: Future plans Up: Electronic database Previous: Electronic database . The JPDOC gives access to references to the papers, data files and links to the internet resources related to measurements and calculations of the optical constants in the wavelength interval from X-rays to the radio domain. ... The database also provides links to internet collections of optical data files and personal WWW pages with relevant software and includes some other useful information. ...

... Dr Jayanne English, Associate Professor of Physics in the Department of Physics and Astronomy at the University of Manitoba in Winnipeg, Canada will present the talk Cosmos versus Canvas: Tensions Between Art and Science in Astronomy Images in the Science Gallery, TCD, on August 7 th . ... Wednesday, 5 August 2009 00:15 . International Year of Astronomy, Ireland National Node . ...

Astronomy Discussion Forums . Forums: . ... Discussion Forums . ... I Hate Most Of Current Psychology As Now Practiced . Forum List | ... Post Message | ... In my experience, current psychology is all . ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

MOSCOW CENTER FOR CONTINUOUS MATHEMATICAL EDUCATION . INDEPENDENT UNIVERSITY OF MOSCOW . ... A MATHEMATICS PROGRAM IN ENGLISH . FOR UNDERGRADUATES AND GRADUATE STUDENTS . ... Students | IUM Library | ... About the IUM . ... Program features . ... Application: . ... Application procedure . Application form . ... Program: . ... Living in Moscow . ... Current semester info: . ... Alumni: . List of Alumni . Home Universities . ... University of California, Berkeley . ...

Home About Meade Product Information Dealer Locator Customer Support Investor Relations Dealer Support Employment Opportunities Site Map . Meade Instruments Corporation . ... Meade Pictor XT-Series CCD Autoguider/Imagers . ... The status bar provides tool tips for each menu item, communication status information, the current x and y coordinates of the mouse on the active image, and the temperature of the CCD chip. (left to right): . ... File Save: Saves the current active image. ... about meade | ...

Parent Directory . LATEST.OS2 . ... README.OS2 . ... emxrt.zip . ...

Name Last modified Size Description . Parent Directory - 98-apogee.rules 2010-06-19 02:22 130 Apn.h 2011-08-03 22:59 7.8K ApnCamera_USB.cpp 2010-06-19 02:17 25K ApogeeUsbLinux.cpp 2011-08-04 01:05 40K README 2011-08-03 23:48 1.6K install_apogee_usb 2010-06-19 15:14 352 libapogeedrv.cpp 2011-08-06 17:19 4.3K libapogeedrv.h 2011-08-06 17:12 833 makefile.xmccd 2010-06-19 02:23 1.5K models.mak 2011-08-03 23:29 4.1K . Apache/2.4.6 (Linux/SUSE) Server at www.astro.louisville.edu Port 80

Name Last modified Size Description . Parent Directory - Artemyev.ppt 03-Mar-2010 19:17 1.6M Frank_IKI-2010.ppt 03-Mar-2010 19:17 5.0M Lyahov.ppt 03-Mar-2010 19:17 1.5M Malova_OFN_2010a.ppt 03-Mar-2010 19:17 5.9M O_Ming_OFN_10.ppt 03-Mar-2010 19:17 14M Petrukovich.ppt 03-Mar-2010 19:17 3.7M Zelenyi_et_al_OFN-2010-v3.ppt 03-Mar-2010 19:17 1.8M .

... Up: Distributed Data Systems, Data Mining . ... The EROS (Exp?rience de Recherche d'Objets Sombres) experiment is a French collaboration between astronomers and particle physicists to search for the baryonic dark matter of the Galactic Halo by gravitational microlensing. ... Cross-identification with stellar objects in other surveys (e.g. ISOGAL, DENIS, see Omont et al. 1999) will also certainly become another use of EROS data in the next few years. ... EROS collaboration) 1998, A&A, 337, L17 . ...

. Other Relevant Links . Number counts have been illustrated earlier in the talk. QSO Clustering and Large-Scale Structure , Scott Croom et al . QSO Evolution and the Luminosity Function , B.J. Boyle et al . | Front page | . | << - Contamination | QSO close pairs - >> | . Robert J. Smith, ">rsmith@mso.anu.edu.au Last modified: Fri Sep 24 11:39:02 EST 1999 .

... Radio Astronomy . ... ASRAS Board Members . ... To see the most up to date news and events happening with ASRAS log in with your user name and password and then click on the Activities page. ... Messier Marathon (Member Observing) CANCELLED Saturday, April 9, 2016 9:00 PM Location:Farash Center Ionia NY . ... ASRAS Members meeting - Friday May 6 at Farash Center - Ionia NY . ... ASRAS Board members meeting - monday May 9 @ Farash Center Monday, May 9, 2016 7:00 PM Location:Farash Center Ionia NY . ...

... Comet Bradfield Rising . ... Comet Bradfield has become quite a sight just before sunrise -- for those with binoculars or cameras. ... D rad Bacteria: Candidate Astronauts . ... Comet C 2001 Q4 (NEAT) . ... Inbound from the distant solar system, comet C/2001 Q4 will soon pass just inside planet Earth's orbit and should be one of two bright, naked-eye comets visible in southern skies in May. ... Comet C 2002 T7 (LINEAR) . ... No comets of comparable brightness have graced the skies of Earth since...