The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc. ... LIG acknowledges partial support from the European Commission's TRM Programme, "Access to Large-Scale Facilities", under contract ERBFMGECT950012 and the European Commission's TRM programme, Research Network Contract ERBFMRXCT 96-0034 "CERES". ... the US Naval Observatory (USNO) Radio Reference Frame Image Database (RRFID), . ...

... LUMAM . ... ABOUT LOMO . ... MICROSCOPES . ... Home Products Microscopes Lumam . ... LUMAM™ microscopes include high-performance fluorescence filters specially developed by LOMO for fluorescence microscopy. ... It allows the attachment of all modules and components, such as the mechanical stage, condensers, objectives, filters, fluorescence cubes, mercury epi-illuminator and observation heads. ... The LUMAM Mercury Epi-Illumination is the standard light source system for research fluorescence. ...

... ARTICLE: The Adventurous Search For The Astronomical Unit . ... Kepler himself had suggested to use the rare occasions of Venus transiting (crossing) the solar disk to measure our distance to the planet. ... Due to the orbital inclination of Venus against the ecliptic of 3.5°, a Venus transit is so rare that it happens only at intervals of 121.5 years, 8 years, 105.5 years, 8 years and so on. ... Crabtree witnessing the transit of Venus 1639 . ... Transits of Venus - The Quest for the Solar Parallax...

... ESA, XMM-Newton SOC, Villanueva de la CaУБada | ... 28691 | ... ESAC, Madrid | European Space Astronomy Centre (ESAC) P.O. Box, 78 | ... SRON, Netherlands Institute for Space Research | ... Institute of Astronomy, University of Cambridge, UK | ... INTA), ESAC Campus, P. O. Box 78, 28691 Villanueva de la CaЫ?n | ... Department of Physics, Durham University | ... University of Oulu, Department of physics, astronomy division | ... University of Iowa, Department of Physics and Astronomy, Iowa City | ...