... Clearing the library. Note the different flooтАж . Sidebar Left . Sidebar Top . ... Title: Clearing the library. Note the different floor levels. There were at least 4 different levels of underfloor in the library. Description: NOTE: All images and movies are copyright and must not be reproduced or mirrored in any form without written permission. ... NOTE: All images and movies are copyright and must not be reproduced or mirrored in any form without written permission. ...

... 2015 December 6 . A Force from Empty Space: The Casimir Effect . ... Measuring slightly over one tenth of a millimeter, the ball moves toward a smooth plate in response to energy fluctuations in the vacuum of empty space. ... The form and genesis of dark energy is almost completely unknown, but postulated as related to vacuum fluctuations similar to the Casimir Effect but generated somehow by space itself . ... About APOD | ...

Crater Gassendi . ... I made this drawing was made on the 26th of november 2001. If you compare this one with the previous drawing of Gassendi (below) the differences are clear. ... This drawing was made on the 28th of september 2001. After nearly a full month without observations I had a one hour gap between the thicker clouds. ... This drawing was made on the 29th of august 2001. ... This drawing was made on the 27th of august 2001. ... This drawing was made on the 25th of august 2001. ...

Astronomy Picture of the Day . Mars: Big Crater in Stereo . ... Credit: Mars Global Surveyor Project , MSSS , JPL , NASA Explanation: Get out your red/blue glasses and check out this stereo picture of "Big Crater" on Mars! ... At just under a mile in diameter, Big Crater is not all that big but it is an important landmark in the vicinity of the Mars Pathfinder landing site on an ancient flood plain in Ares Vallis. ... Publications with keywords: mars pathfinder - Mars - crater . ... Mars in View . ...

... Bad Astronomy . ... Every few months, one of a series of questions comes up on the USENET group sci.astro involving tides, or the rotation of the Moon, or the recession of the Moon from the Earth. ... Why the Moon's rotation period is the same as the length of time it takes to orbit the Earth (same as number 1, but phrased differently). ... But when this happens, the time it takes for the Earth to rotate once will be slowed to exactly the same time it takes for the Moon to go around the Earth once! ...

Galileo showed convincingly that heavy objects fell no faster that light ones. ... If an iron ball was pulled down with a much greater force than a wooden one of the same size, why didn't it fall any faster? ... 1) It is harder to lift. ... It is the fact that the loaded wagon has a greater mass that gives it a larger inertia , a larger tendency to oppose any change in its state of rest or of constant motion in a straight line. ... One important quantity was the body mass of the astronauts. ...

... Carefully measure the diameter of the craters formed by the impact without disturbing the sand. ... Crater diameter increases with increasing mass. ... Without disturbing the sand, carefully measure the crater diameter. ... Did you measure any difference in the diameters of the craters? Yes, as velocity increases, so does crater diameter. ... Impact cratering. ... Impact craters can be demonstrated with younger or less advanced students using mud instead of sand and ball bearings. ...

Enceladus . ... Enceladus [en-SELL-ah-dus] is one of the innermost moons of Saturn. ... Parts of Enceladus shows craters no larger than 35 km in diameter. ... This Voyager 2 mosaic of Enceladus was made from images taken through the clear, violet and green filters on August 25, 1981, from a distance of 119,000 kilometers (74,000 miles). ... This image was created by projecting a digital map of Enceladus onto an orthographic view and then replacing the color channels by low resoultion color images. ...

... Low Polar Orbit . ... Different types of satellite orbits have different uses: while the synchronous orbit is best for communication satellites, Lagrangian point orbits help monitor the solar wind before it reaches Earth. ... Many spacecraft use such orbits, e.g. the US Air Force surveillance satellites of the DMSP series, or the series of French Earth-resources spacecraft SPOT . ... If the satellite then starts near a noon-midnight orbit, it will always pass near noon and near midnight. ...

National Aeronautics and Space Administration . ... JOHN E. BLAHA (COLONEL, USAF, RET.) NASA ASTRONAUT (FORMER) . ... EDUCATION: Graduated from Granby High School in Norfolk, Virginia, in 1960; received a bachelor of science in engineering science from the United States Air Force Academy in 1965 and a master of science in astronautical engineering from Purdue University in 1966. ... NASA EXPERIENCE: Selected as an astronaut in May 1980, Blaha has logged 161 days in space on 5 space missions. ...

... The SDSS 2.5-m primary mirror is supported in a manner similar to the Apache Point Observatory 3.5-m telescope primary. ... The axial support is provided by 48 air pistons. The pistons have the same diameter thereby applying equal forces with the same air pressure. ... Each group supports a 120њ sector of the mirror. ... Figure 1: CAD drawing showing the 2.5-m primary mirror and the locations of actuators (green circles) These actuators apply forces (10*cos2 N) to correct astigmatism. ...

... Taking into account the probability of forced emergency landings, cosmonauts are trained for their actions at the forced landing site in various climatic and geographical zones. ... To work out practical skills of the crew on maintaining work capacity and preserving their lives during their independent (autonomous) stay in difficult physical-geographic conditions with rational use of the descent capsule equipment, portable emergency kit, regular harness, improvised materials on the terrain; . ...

... This description of Bridge World Standard, intended as a clarification of the items in the summary, was developed by Jim Loy. ... For the Summary itself, see Bridge World Standard Summary . ... Abbreviations that I have used: m = minor suit, M = major suit, x = any suit (as in 2x). ... Bridge World Standard 1994 . ... Game raise is slam try [example: 1NT-2H-2S-4S] [Use Texas with only game] . ... New-suit jump after single major raise [example: 1H-2H-3S] . ... Bridge World Standard 1984 Summary . ...

Microsymposium 40, abstract 78, 2004 (A4 format) A TREATMENT OF DATA BANK OF MORPHOLOGIC CATALOGUE OF MERCURIAN CRATERS. ... Coordinates of craters in the catalogue are changed in accordance with [2] new data of Mercury"s North Pole. A treatment of data bank is fulfilled with the use of software in regime of "client-server" on the choice of ensemble of the objects, compiling maps of density distribution of craters. ... Flat floor of craters on Mercury is met often than on the Moon. ...

This diagram illustrates the effects of floating a box ("inner") and how its "sibling" is forced below it due to the 'clear' property. A document window is shown, with 8 lines (numbered 1 to 8), each 24px high. Text before the "inner" box flows on lines 1 and halfway on line 2. The "inner" box has been floated to the right and occupies the second half of lines 3 and 4. ... The lines, as they appear in the image, contain: 1 Beginning of body contents. ... Inner contents" is blue. ...

... Line break and tab elements can be used when you need a little more control over how the browser renders the text. The <BR> element is used to force a line break. ... Shouldn't we have a conditional line break element like Netscape's WBR thats indicates where to break lines when needed and when wordwrap is disabled? ... An SGML identifier used as the target for hypertext links or for naming particular elements in associated style sheets. ... CLASS . ... CLEAR . ... clear=left . ... clear=right . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Space Flight . ... Posted on January 13, 2012 | No Comments The aurora is a stunning celestial event associated with EarthтАЩs polar regions. ... Continue Reading.. Posted on October 20, 2011 | ... Posted on September 26, 2011 | ... Posted on July 19, 2011 | ... Posted on May 27, 2011 | ... Time was originally defined and quantified through astronomy, and today astronomers are used to glibly talking of vast stretches of time. ...

... 05/09/2013 Galaxy Evolution over Five Decades - Cambridge 2013 Nuclear activity and environment Effect of environment on AGN is not completely clear yet. ... 05/09/2013 Galaxy Evolution over Five Decades - Cambridge 2013 Effect of the mass Mass slices ­ optical and radio AGN overall interaction one-on-one interaction relative location 05/09/2013 Galaxy Evolution over Five Decades - Cambridge 2013 Stratified study Stratifed study that considers several strata of mass. ...

What eventually became the first total lunar eclipse visible from much of Ireland for several years occurred in the evening of 3rd March, 2007. ... Armagh Observatory astronomers Tolis Christou, Miruna Popescu and John McFarland captured on camera the different phases of the eclipse from County Armagh, noting the now familiar coppery-red colour of the eclipsed Moon due to sunlight filtering through progressively denser layers in the Earth's atmosphere as seen from the Earth's natural satellite. ...

Astronomy Discussion Forums . ... What Really Exists Outside The Universe . ... Post Message | ... Picture a bowl of marbles. ... Each of the spheres in your marble bowl represents a single universe. Now in reality these marble spheres exist infinitly in numbers and are not limited to some sort of cosmic bowl. ... www.astronomy.net . About Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...