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The solar system probably formed about 4.5 billion years ago from a giant disk of gas, dust and ice in space. ... All forms of life on Earth require liquid water to survive, so the presence of liquid water is a good criterion for deciding whether other planets in the universe could be habitable. Earth is the only habitable planet in the solar system. Venus, closer to the Sun, is too hot to have liquid water. Planets and moons in the outer solar system are too cold for liquid water. ...

... Do you know why we have seasons on Earth? ... Even if you offer students the great activities developed by the Harvard researchers, or the great activities in ASP's teacher resource book, The Universe at Your Fingertips , your students still won't learn anything unless they work hard and think about their work. ... But none of these are worth a hoot unless they are also accompanied by hard work on students' part. ... The key to success in astronomy is the same as it is in everything else: hard work....

... The begining of program -- Target function: a * b with TEXT_IO ; use TEXT_IO ; procedure EXAMPLE is package IO_INT is new INTEGER_IO ( INTEGER ) ; use IO_INT ; r,b,a: INTEGER ; begin put ( Enter unsigned number 'b', please ... unsigned number 'a', please: ) ; get ( a ) ; declare VAR0 , VAR1 : INTEGER ; begin VAR0 := a; VAR1 := b; declare VAR3 , VAR2 , VAR4 : INTEGER ; begin VAR3 := 0 ; VAR2 := VAR0 ; VAR4 := VAR1 ; while VAR2 /= 0 loop begin if ...

... While extrasolar planet discoveries are sure to continue, none - so far - points clearly to another planetary system like our own. Take, for example, the newly discovered parent star HD38529. ... No direct picture of the planet was taken - the planet was discovered by the gravitational wobble it created on its parent star, Epsilon Eridani. ... The Coma Cluster of Galaxies . ... The Coma Cluster of Galaxies pictured above is one of the densest clusters known - it contains thousands of galaxies. ...

Next: Silicate minerals Up: A Database of Optical Previous: Database of Optical Properties . ... If necessary, data have been determined for the different crystallographic axes. ... In the following we give some examples of the data and their possible applications. Table: Summary of data measured in the Jena laboratory, which are currently available from the JPDOC. compound . ... amorph. ... Next: Silicate minerals Up: A Database of Optical Previous: Database of Optical Properties root 2003-03-06 ...

. The Twin Jet Nebula (PN M2-9) is a striking example of a bipolar planetary nebula. Bipolar planetary nebulae are formed when the central object is not a single star but a binary system. Studies have shown that the nebula s size increases with time, and measurements of this rate of increase suggest that the stellar outburst that formed the lobes occurred just 1,200 years ago. ESA/Hubble NASA; Acknowledgement: Judy Schmidt

Name Last modified Size Description . Parent Directory - ppm/ 2009-02-10 15:26 - tif/ 2009-02-10 15:26 - . Apache/2.4.6 (Linux/SUSE) Server at www.astro.louisville.edu Port 80

... The example demontsrates a way how to use the coefficients arrays and the Software . Let us suppose that we have a direction in the S/C frame, determined by the angles u1, u2, where: u1 - angle between vector and X axis (polar angle) u2 - angle on the YZ plane from Y axis (anticlockwise); . ... We use the file 950909t1 (the beginning data 9.09.06), which line 2 interval beginning : date 10.10.95 , time 1.926 thousands of sec, the interval duration is 4.583 thousand of sec. ...

Instructions for Uploading Images and Video Related to the Columbia Accident . For anyone who has recorded video or taken photos that they believe may be of aid in the investigation of the Space Shuttle Columbia accident, NASA has established a special location on the Web where Internet users may upload their media files to be reviewed by NASA. ... Image file: johndoe_020203_0415pm.jpg . ... If you have any problems uploading your files, please e-mail Mike Koester . ...

I. Installation . ... AMPLE package distributive (created with program InstallShield for Microsoft Visual C++) has been downloaded on FTP server of IAA RAS as archive Ample.zip. ... Note: If the window "file download" appears, select Open... switch button, then press OK button. ... The shortcut for AMPLE will be linked with this folder, and auxiliary files will be created here during AMPLE work. ... When running AMPLE all auxiliary and new configuration files are created in the WORK folder. ...

... According to the most popular cosmological paradigm, the greater part of the galaxy mass is accumulated in the dark matter halo. ... The polar ring galaxies (PRGs) reveal external rings or disks of gas, dust and stars rotating in a plane roughly perpendicular to the disk of the central galaxy. ... The shape of the dark halo in the model was chosen so as to achieve the best fit to the observed rotation of both galaxies themselves and their polar rings. ... The SPRC-7 galaxy. ...

Astronomy Discussion Forums . ... Let Me Be More Clear . ... Post Message | ... However, if I have identified it, how do I know this 'thing' is something that exists versus only thought of as existing? ... However, by me identifying 'red' as 1 (i.e., as I originally did), I am assuming that there is 'red' as something that exists. ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

A methodical and didactical complex "Sign Language" . ... ABSTRACT The process of communication of the deaf includes the wide use of the sign language. ... The aim of this work is to develop a tool that should facilitate process of sign language teaching and also give to the trainee a means for independent study of various normative variants of sign language - for example, Russian, English, International and so on. ... The process of dialogue of the deaf people includes wide use of sign languages. ...

The laboratory has developed a fabrication technology of boron/aluminium structural elements that does not involve high-temperature/high-pressure equipment which is usualle very expensive. ... For example, to produce boron/aluminum tubes with longitudinal reinforcement, see Fig.1 for examples, which are characterized in Table 1, we have constructed a simple equipment (Fig.2) based on a commercially available furnace. ... Maximum tube length is 1500 mm, maximum diameter is 75 mm. ... Diameter . ...

fitshdr - FITS-file headers manipulation tool fitshdr [options] [FITSfile_name] . ... fitshdr [options] --edit FITSfile_name . ... If You want to modify headers of FITSFILE using new FITS-header lines from HEADER file (or from stdin), You have to use this option (You can skip this option, if -H or --header option is used). ... Empty header lines are not displayed (in 'dump' mode only). --line-offsets . ... In 'dump' mode: file offset will be displayed for each header line. --no-line-offsets . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Planets . ... Our Galaxy . ... Weird and Fun . ... It came from another galaxy: This artistтАЩs impression shows HIP 13044 b, an exoplanet orbiting a star that entered our galaxy from beyond. ... HIP 13044 is one of tens of millions of stars in the тАЬHelmi streamтАЭ, stars that belonged to a dwarf galaxy consumed by our own Milky Way galaxy, some six to nine billion years ago. ... Tweets that mention ESO finds weird doomed planet from another galaxy | ...

... Несколько примеров 3-многообразий: тор T^3, сфера S^3, S^3. Их геометрические (например, оптические) своиства. Евклидова и сферическая геометрия и, возмможно, чуть-чуть гиперболическои геометрии. ... Несколько разныкх определений (напр., факторпространство сферы по действию группы Z_p, результат склейки двух полноторий). ... Их геометрические свойства. ... Гиперболическая геометрия на нем. Его расслоение над окружностью со слоем проколотый тор. ...

... Bad Astronomy . ... Mad Science . ... Please explain what the fourth dimension is and how it can be visualized. ... I never found any really good books describing it, although there is one fun one called "The Fourth Dimension Simply Explained". ... The fourth dimension would be if you could draw a line perpendicular to all three lines. ... If you could move in the fourth dimension, you could go straight out from the center of the sphere, receding forever, but never actually touch the surface. ...