... 2008 April 21 . Bacteriophages: The Most Common Life-Like Form on Earth . ... Explanation: There are more bacteriophages on Earth than any other life-like form. These small viruses are not clearly a form of life , since when not attached to bacteria they are completely dormant. ... Although initially discovered early last century, the tremendous abundance of phages was realized more recently when it was found that a single drop of common seawater typically contains millions of them. ...

... The Cross-Quarter Days thus mark the middle of each season under our current system, or seasonal boundaries under the alternative system. ... Beltane / Bealtaine - Celtic bonfire festival May 4-7 2nd Cross-Quarter Day May 5 - Cinco de Mayo (Mexico) May 2nd Sunday - Mother's Day May last Monday - Memorial Day ( Decoration Day , officially May 30) June 14 - Flag Day June 3rd Sunday - Father's Day June 20-22 2nd Quarter Day - Summer Solstice June 21 - Litha (Norse/Anglo-Saxon for ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. January 10, 1998 . Disorder in Stephan's Quintet . ... Explanation: What are five closely grouped galaxies doing in this image ? The grouping is commonly known as Stephan's Quintet. ... It is probably a foreground object which happens to lie along the line of sight to the more distant galaxies. ... About APOD > . ...

... Bacteriophages: The Most Common Life Like Form on Earth . ... Credit: Wikipedia ; Insert: Mike Jones Explanation: There are more bacteriophages on Earth than any other life-like form. These small viruses are not clearly a form of life , since when not attached to bacteria they are completely dormant. Bacteriophages attack and eat bacteria and have likely been doing so for over 3 billion years ago. ... Publications with keywords: Earth - life . Publications with words: Earth - life . ...

... Public . Science . ... Science Users Information Science Software Common Pipeline Library jump to navigation jump to content . Science Users Information . ... Observing with ESO Telescopes . ... Publications with ESO Data . ... Large Programmes . ... Common Pipeline Library . ... The Common Pipeline Library (CPL) comprises a set of ISO-C libraries that provide a comprehensive, efficient and robust software toolkit to develop astronomical data-reduction tasks (known as "recipes"). ...

... Posts tagged ?Common Errors? ... My astronomer neighbor mentioned this book a while ago and quite later I found intriguing quotes. Continue reading ?Quotes from Common Errors in Statistics ? Tags: book , Common Errors , confidence intervals , estimate . Category: Bad AstroStat , Cross-Cultural , Quotes | Comment . ... Entries RSS . Comments RSS . ... vlk on [MADS] Parallel Coordinates . upvc windows on [MADS] Parallel Coordinates . ... Entries (RSS) and Comments (RSS) . ...

Sloan Digital Sky Survey Telescope Technical Note 19970728 Edward J. Mannery and Walter Siegmund . ... Common corrector mount inspection . ... The corrector nearest the secondary mirror, the common corrector (so named because it is common to both imaging and spectroscopic configuations) is located with respect to the telescope optics support structure by the common corrector mount. ... The fused silica common corrector is 32.5 inches in diameter and is 0.47 inches thick. ...

... All significant tables, images, and spectra published in journals should appear in the astronomical data centres. ... Journals, data centres, and users should collaborate to define formats, table descriptions, and metadata that are easy for authors to adhere to, and can automatically be entered by the data centres into their databases. ... Major astronomical journals and data centres should provide free or reduced-cost electronic access to institutions in developing countries. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Planets . ... Exoplanets . ... Space Flight . ... Science Fiction . ... August . ... By admin August 18, 2011 Posted in: August . Artist's impressions of Kepler and the light curve of transiting planet (Image credit: NASA) . ... In 1995 we knew of only nine planets (including Pluto, how times change), but in that year the first of the extra-solar planets or exoplanets was confirmed. ... Another is one of the most Earth-like worlds yet discovered . ...

. Common photo of participants, by I.Salnikov, click to enlarge, 523 kB . Dr. Michael G. Gavrilov, Founding Chairman of the International Astronomy Olympiad, . ISSP of Russ. Acad. Sci., Academician Ossipyan street 2, 142432 Chernogolovka, Moscow region, Russia. URL: http://www.issp.ac.ru/iao/2011/ . e-mail: gavrilov@issp.ac.ru . fax: + 7-(496-52)-28-160 . Updated 06.10.2011.

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... This shows the Sun, Moon and Earth (not to scale) together with the . ... They have tested the technique on the Earthshine, the light reflected from the Earth by the Moon, and showed that it can reveal the presence of life in our planet. ... This technique uses the fact that the light reflected from the planet is polarised, whereas that emitted by the star is not. ... Polarised light can tell us about the reflecting surface...

... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...

... Gallery . ... The Common Room frame goes up . Sidebar Left . Sidebar Top . No Sidebar . Sidebar Bottom . Sidebar Right . ... Title: The Common Room frame goes up . Description: NOTE: All images and movies are copyright and must not be reproduced or mirrored in any form without written permission. ... The Common Room frame goes up NOTE: All images and movies are copyright and must not be reproduced or mirrored in any form without written permission. ...

... Bojan Nikolic web pages home . Next: Phase Correction for ALMA with 183 GHz.. ... Finding the URL for download of the ALMA Common Software (ACS) sources can be a bit tricky so for my own and maybe other peoples future reference the current URL to use is: ftp://ftp.eso.org/projects/acs/public/Releases/ . Please enable JavaScript to view the comments powered by Disqus. blog comments powered by Disqus . Copyright 2012, Bojan Nikolic feedback welcome ...

... I normally begin by asking the class what they think would be different if the Moon didn't exist, or if the Sun were closer to Earth, or if a star exploded nearby. ... The winds would be much stronger. ... In using what-if questions in the classroom, it is worth bearing in mind that students extrapolating the effects of new scenarios will encounter two different situations: direct changes to the new version of Earth and indirect changes resulting from the direct changes. ...

. Next: Compiler Options Up: Programming in C Previous: References . Here we list common C Compiler options. They can be tagged on to the compiler directive. Some take an additional argument. E.g. c89 -c -o prog prog.c . The -o option needs an argument, -c does not. Compiler Options . Dave.Marshall@cm.cf.ac.uk . Wed Sep 14 10:06:31 BST 1994

... R.A. = 00h55m04s.86, Decl. = -37 41'43".7 . ... Variable star in NGC 1511 . ... Variable star near Pegasus 2001bn IAUC 8624 BV anon 2001bh 7622 K star ugc11635 2001dh 7482 M star ic5374 1999db 7227 QSO anon 1999dc 7227 AGN anon 1999cx 7210 AGN anon 1999cu 7210 AGN anon 1999bs 7141 cat var ugc11093 1998di 6982 dwarf nova anon 1993U 5818 QSO anon 1993V 5818 QSO anon 1992W 5517 M star mcg 8-23-96 1992X 5517 M star mcg 6-32-24 1991ap 5327 QSO anon 1989Z 5162 var ngc4013 1985J 4059 CV ugc6274 ? ...

... The PCIPS image processing system (Smirnov & Piskunov 1994) has been in development since 1991; the current version is 2.01. ... Key features of the system include: (1) an intuitive graphical user interface (GUI), (2) all functionality is provided by external application modules, which are easily added to the system as they are developed, (3) there is an application program interface (API) for development of custom applications, and (4) the code runs on practically any Intel-based PC. ...

. Album : asv-album :: Travels to distant places and countries :: 1998/05 Boston (USA) :: 1 Boston streets . Up . << Prev . Policeman on the horse in Boston Commons . Next >> . Photo album generated by album a script by David Madison on Tue Jun 23 14:46:37 2015 .

... It provides for logging of the requests made to the server using the Common Logfile Format. This module has been replaced by mod_log_config in Apache 1.2 The log file contains a separate line for each request. A line is composed of several tokens separated by spaces: host ident authuser date request status bytes If a token does not have a value then it is represented by a hyphen (-). ... day = 2*digit . ... TransferLog . ... Context: server config, virtual host . ... Module: mod_log_common . ...