The choice of which type of electricity is called "positive" and which "negative" was made around 1750 by Ben Franklin, early American scientist and man of many talents. Franklin studied static electricity, produced by rubbing glass, amber, sulfur etc. with fur or dry cloth. ... Later, when electric batteries were discovered, scientists naturally assigned the direction of the flow of current to be from (+) to (-). ... Exploration" home page (index) Glossary . Official GSFC Home Page .. ...

Подписка на рассылку обзоров astro-ph на Subscribe.Ru . ... Предыдущий выпуск (N335) . ... Обсудить на форуме Scientific.RU . ... Подписка на рассылку обзоров на Subscribe.Ru . Обзоры препринтов astro-ph . ... Собственно обзоры препринтов. ... Ранее обзоры также были на Астронете и на Scientific.Ru . ... АНКи доступны на Астронете , а с 2006 по 2008 г. также на сайте Элементы.Ру . ... Ранее они также размещались на сайте Астронет и в архиве моих обозрений (кодировка KOI8) на сайте Scientific.Ru . ...

... Astrophysics Group . ... COAST . COAST Current Status . ... COAST File Archive . ... Fringes and Power Spectra from COAST . ... The first stellar fringes were obtained in June 1991. ... We obtained sufficient data to reconstruct the first infrared image from an aperture synthesis array. ... The North telescope of the COAST array was moved to a new foundation, further to the North, making the longest baseline 67 metres. ... A fifth telescope was sited on the Southwest arm of the COAST array. ...

... But most importantly, please allow convective surface currents to carry your visits away from the redzones ! Link to Past calendar of hotspot areas. ... Orbits . ... STIS anneal . 15 orbit ToO Map . 15 orbits . ... ACS anneal . ... likely ToO activation . ... 15 orbit ToO map . ... all SAA free orbits! ... ToO Activation likely . ... 10370 . ... ToO Activation likel . ...

... Files in red?history) . ... Auroral Currents . 25H. Birkeland Currents . ... As noted earlier Kristian Birkeland, reporting in 1903 on his expeditions to the auroral zone, proposed that magnetic disturbances accompanying the aurora were caused by large electric currents flowing down the length of auroral formations. ... In later years these currents became known as the auroral electrojets , and considerable debate ranged over their cause and the way their circuit might be completed. ...

... Data Analysis SAS News What is SAS? ... Back to Calibration Homepage In order to analyze the data collected with XMM-Newton you need some calibration files (Current Calibration File, see below) and a copy of the Science Analysis System (SAS) available here . ... Mirroring the Calibration Archive . ... CCF$ or use instead: package=xmm-ccf comment="The XMM-Newton calibration archive" site=xmm.esac.esa.int mode_copy=true max_delete_files=100% remote_dir=pub/ccf/constituents local_dir=/ccf get_patt=^*.\...

pwb] ; ; To use any of these examples, remove the leading semicolon and include it ; in your tools.ini file. ... If you do not load the extensions, ; but want to match these messages in the compile window, add these to ; your tools.ini. ; ; ; pwbrmake ; build : message ^pwbrmake: [^U]+U[ 124 ] ; bind ; build : message ^BIND : [^U]+U[ 124 ] ; C ; build : message ^\\(\\:p\\)(\\(\\:z\\)) : [^C]+C[ 124 ] file line ; build : message ^[^C]+C[ 124 ][ 0-9 ]+: ; C or FORTRAN ; ...

Current is an open-source implementation of an up2date server, aka RedHat Network. The patched release 1.4.4.a is capable enough to support of an all channels for Fedora Core 1 2, AMDx86_64 et.a. Distributed free by GNU GPL . RPM 1.4.4.a package . SRPM 1.4.4.a source package . Public GPG-key , signed package builds.

Following are instructions to build and install the programs in this distribution. Make sure that you have all necessary tools for building executables. ... The automatic build process expects a configuration file called Config.local . ... The configuration file specifies the directory in which to install the binaries, as well as control over the generation of debugging code and reference clock support. ... Cleans out object files, programs and temporary files. make distclean . ...