... 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 (the stamp on the left commemorates his role as first US postmaster--and colonial postmaster before that). ... Franklin knew of two types of electric charge, depending on the material one rubbed. ... Later, when electric batteries were discovered, scientists naturally assigned the direction of the flow of current to be from (+) to (-...

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. ... CDFIR 1st ep. 2 solid days . ... 03.223+/-1day . 03.227 +/- 1day . 9822 . ... COSMOS 1st epoch . CDFIR 1st ep. ... 03.231+/- 1day . 03.234+/-1day . ... 03.237+/-1day . 03.241+/-1day . ... 03.244+/-1day . 03.248+/1day . ... 03.251+/-1day . 03.255+/-1day . ... UDF Epoch 1 . ... COSMOS 2nd epoch . ... 02.339+/-1day . ...

... 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=^*.\...

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 . ...

... 1 polarization, 3-level autocorrelation: 16384 spectral channels . 2 polarizations, 3-level autocorrelation: 8192 spectral channels . 1 polarization, 9-level autocorrelation: 4096 spectral channels . 2 polarizations, 9-level autocorrelation: 2048 spectral channels . ... Full Stokes, 9-level autocorrelation: 2048 spectral channels . ... 1 polarization, 3-level autocorrelation: 8192 spectral channels . ... 1 polarization, 9-level autocorrelation: 2048 spectral channels . ...

... The Phase 2 Waiver Request procedure is the channel to handle such requests. ... Waiver requests are handled from PROP, enabling easy(er) back-up in case of absence of the support astronomer to whom the run is assigned. ... The following file lists the standard waivers providing guidelines whether the specific waiver request is handled directly by USD support astronomer or it requires input from Paranal: . ... USD support astronomer sends the final decision on the waiver to the user who requested it...

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.

... PmWiki . ... Go to new wiki . ... The (:if:) directive allows portions of a page to be included or excluded from processing. ... if name PAGENAME:) . current page is named " PAGENAME " . ... if auth LEVEL PAGENAME:) . ... if true:) . ... true if current date is DATE . ... true if current date is DATE or later (unlimited) . ... true if current date is in range DATE1 to DATE2 (inclusive) . ... true if the page pagename exists . ... current page is in group PmWiki or a group beginning with Pmwiki . ...

Novermber 2008 - WORK IN PROGRESS We are currently using the (just announced end-of-life) Netrestore software to install our systems. ... We automount our NFS-based home directories. ... On the Mac end, edit /etc/autofs.conf, and add ",resvport" to the AUTOMOUNTD_MNTOPTS. ... This is more of a problem, because Finder is a busybody, sticking it's nose in business it shouldn't. Simply symlinking to an autmounted directory failed abysmally. ... Here's our current list of files we change, and why: . ...

This lesson is intended as a revision of basic direct-current (DC) circuits . It was discovered in the 19th century that certain materials (so-called ideal resistors) have a current through them I that is proportional to the potential difference (voltage) across them V. This is not a fundamental law of physics (like momentum conservation) but is an observed behavior which some materials roughly follow (like the friction law we covered earlier in the course). ... This equation is called Ohm's law. ...

... Up: Distributed Data Systems, Data Mining . ... The EROS (Exp?rience de Recherche d'Objets Sombres) experiment is a French collaboration between astronomers and particle physicists to search for the baryonic dark matter of the Galactic Halo by gravitational microlensing. ... Cross-identification with stellar objects in other surveys (e.g. ISOGAL, DENIS, see Omont et al. 1999) will also certainly become another use of EROS data in the next few years. ... EROS collaboration) 1998, A&A, 337, L17 . ...

Dams are frequently located upstream from major population centers: . 1918--1958: 33 Major dam failures resulting in 1680 documented fatalities . 1959--1965: 9 major dams failed throughout the world . 1976: Teton Dam failure in Idaho . ... The Salmon Problem: . ... Some Federal Dam Licenses can now be lost because of salmon migration problems . ... Actual Salmon Count data is available for these dam sites: . John Day Dam . Bonneville Dam . ... Adverse effects of dams on salmon: . ...

Open Systems Handbook: A Guide to Building Open Systems . ... This book is designed to provide interested individuals and organizations with an overview of open systems and the work being done to achieve them. ... This section is organized using a descriptive model of an open systems environment developed by the IEEE PI 003.0 Working Group, which is developing the Guide to POSIX-based Open System Architecture. ... Standards for open systems 13 . Chapter 3: The open systems environment (OSE) 15 . ...

... Размер: 2;1 . Цвет: Голубой . ... Рубашки / Блузки . ... Артикул: D122_15KR Цвет: белый Состав: 50% вискоза, 50% полиэстер Описание: элегантная блуза без рукава. ... Цвет: черный . ... Черный глянец металла облагораживает и сдерживает невероятный шик образа, достойного лучших интерьеров.<div><br></div><div>Цоколь: E14.</div><div>Мощность: 8х40.</div> . ... Ящик для 20 ключей Office-Force с кодовым замком, цвет: черный - Office-Force - Office-Force . ...

... Share your current Research with us . ... От: "Journal of Geology Geosciences" . ... Тема: Share your current Research with us . ... Journal of Geology Geosciences publishes original Research/Review/Mini-review/Commentary/Opinion articles, Short communication, Case Reports etc, which covers the topics related to Earth Sciences, Climatic Change, Disaster Management, Disaster Preparedness Mineralogy, Geodesy, GIS, Remote Sensing, Anthropology, Geography of the Earth, Primatology, Planetary Sciences...

... Wind Speed: 0 mph . ... Average (15 minutes): 1 mph . Current Rainfall: 0.00 in/hr . Rain Storm Total: 0.00 in . Storm Started: n/a . Rainfall Totals: . Today: 0.00 in . This Month: 0.78 in . ... Sunrise: 7:06AM . ... Credit: Joe Jaworski's Davis Weather Station Linux software . ...

... The star formation rate (SFR) of the current SF episode can be estimated from the total H luminosity. ... For the derived total flux F (H )=5.8 erg s -1 cm -2 we obtain a total H luminosity of 10 39 erg s -1 . ... The total mass of ionized gas can be obtained from the average mass density inside the H II region and its volume. An average mass density corresponding to the average electron density of 1 cm -3 within a volume with a diameter of 0.5 kpc yields a total ionized gas mass of 10 6 . ...