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 .. ...

... Asteroid . ... In case you didn't hear about it, which you probably didn't: On Jan. 7, an asteroid 1,000 feet across -- nearly three times the current diameter of Marlon Brando -- barely missed the Earth, which is most likely your planet of residence. ... What if this asteroid had hit the Earth? ... As it happens, the American Astronomical Society was holding a conference in Washington AT THE VERY SAME TIME as the asteroid nearly hit the Earth. ...

1975SvAL.. ... Total number of objects found: 1 . Currently displayed are the first identifier in SIMBAD and the object type. By clicking on the [Dic CAT] anchor, you get the informations from the nomenclature dictionnary for the corresponding catalogue. By clicking on the identifier itself , you get the basic data and all the identifiers from SIMBAD. ... SBC 741 .. ... Dic SBC] . Return to object query page . E-mail to: question@simbad.u-strasbg.fr ...

... As the outcome of the meeting we expect some identification of joint research projects which would benefit Glasgow-Pulkovo collaboration and FP-7 "RadioSun" staff exchange scheme. Where : The workshop will be hosted at Pulkovo Observatory, Saint Petersburg. When : August 11-15, 2014 . ... This is the format of the workshop we had for Glasgow-Meudon collaboration ) We anticipate that each speaker will have 45 mins, which includes 30 mins to present material and 15 minutes for questions. ...

... 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 . ...

... Radio Astronomy . ... ASRAS Board Members . ... To see the most up to date news and events happening with ASRAS log in with your user name and password and then click on the Activities page. ... Messier Marathon (Member Observing) CANCELLED Saturday, April 9, 2016 9:00 PM Location:Farash Center Ionia NY . ... ASRAS Members meeting - Friday May 6 at Farash Center - Ionia NY . ... ASRAS Board members meeting - monday May 9 @ Farash Center Monday, May 9, 2016 7:00 PM Location:Farash Center Ionia NY . ...

... LABORATORY OF RADIO ASTRONOMICAL OBSERVATIONS . Radio sources identification is one of the most important tasks of the current radio astrophysics. ... Optical idetification. ... Optical identifications of subsample of steep spectra radio sources from RC catalog using 6m SAO telescope of SAO RAS: optical observations. ... Astronomy Reports. ... Identification of radio sources with data of various radio catalogs allows one to construct continual spectrum of the object and its radio structure. ...

Software Forum Message . Forums: . ... Discussion Forums | Astronomy Software Discussion | ... Help Needed On Adding Additional Objects To FITS Images.. Forum List | ... Post Message | ... Additional Information . ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... News Latest News News Archive Newsletter Quarterly Status Report . ... How to use SAS SAS Workshops SAS Version Changes Download and Install SAS Science Simulator (SciSim) . Archive, Pipeline & Catalogues XMM-Newton Science Archive Pipeline Processing System Observation Data Status Time Correlation Fix Serendipitous Source Catalogue OM Serendipitous Source Catalogue Slew Survey Catalogue Latest Slew Results Browsing Interface for RGS Data Live Radiation Monitor Plots Radiation Monitor Files . ...

... 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. ...

. Other Relevant Links . Number counts have been illustrated earlier in the talk. QSO Clustering and Large-Scale Structure , Scott Croom et al . QSO Evolution and the Luminosity Function , B.J. Boyle et al . | Front page | . | << - Contamination | QSO close pairs - >> | . Robert J. Smith, ">rsmith@mso.anu.edu.au Last modified: Fri Sep 24 11:39:02 EST 1999 .

Estimating the NEO Population and Impact Risk: Past, Present and Future . ... Since most of the risk resides in the largest impactors, finding that fraction of the largest bodies, and that none of them has a significant chance of impacting in the next century or so, "retires" more than 90 % of the impact risk, including most of the risk of a globally catastrophic impact event. ... In the mid-size range, from ~150 m to ~1 km, the main risk is from tsunami generated by an ocean impact. ...

... Several HST instruments both current and decommisioned have provided imaging linear polarimetry capabilities. ... The STECF IRAF layered package impol provides five tasks specifically aimed at reduction of HST imaging polarimetry data. ... Reduction of HST polarimetry data and simulation of raw polarimetry images, together with polarization vector plotting, are covered. ... For reduction of data from imaging linear polarization instruments other than from HST, the instrument name is `SPECIAL'. ...

Storing and accessing the largest astronomical catalogues with the SAI CAS project S. Koposov1,2,3, O. Bartunov2, S. Karpov4 et al2. ... Why we want to build our own Catalogue Access Service The requirements for our CAS system The importance of the Database for the CAS (PostgreSQL & Q3C) The technical realization of CAS What has been already done Example of work TODO Storing and Accessing Astronomical Catalogues Existing projects CDS OpenSkyQuery CASjobs with SDSS They are all really great! ...

... Bad Astronomy . ... Mad Science . ... Where is the Hubble space telescope currently? (near what planet?) You may be surprised by this, but the Hubble Space Telescope (HST) is orbiting the Earth! ... At that height, HST is above almost all of the Earth's atmosphere, which gives it a clearer view of the sky than telescopes on the Earth. ... You can find pictures and info from STIS here , which is a page brought to you by the Space Telescope Science Institute . ... 2008 Phil Plait. ...

... 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...

... SOLAR WEB RESOURCES AND RESEARCH SITES LINKS . ... http :// solar .nro.nao.ac.jp/ - The Nobeyama Radioheliograph : daily solar images at 17 GHz. http ://umbra.nascom.nasa.gov/batse/batse_years.html - CGRO BATSE solar flare database at the SDAC. http ://umbra.nascom.nasa.gov/yohkoh_archive.html - The Yohkoh Archive. ftp://140.252.1.21/kpvt/ daily - U.S. National Solar Observatory at Kitt Peak anonymous ftp directories. http ://www.bbso.njit.edu - Big Bear Solar ...

. eng || rus . Home . Projects . Research . Publications . Astronomy Letters . Conferences . SRG Project . RSDC . Contacts . The main scientific projects of the department . Orbital observatory "Rentgen" . on MIR station . Granat orbital observatory . INTEGRAL gamma-ray observatory . SRG Project . Russian-Turkish 1.5-m Telecope . 2016 IKI RAN

... 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.&lt;div&gt;&lt;br&gt;&lt;/div&gt;&lt;div&gt;Цоколь: E14.&lt;/div&gt;&lt;div&gt;Мощность: 8х40.&lt;/div&gt; . ... Ящик для 20 ключей Office-Force с кодовым замком, цвет: черный - Office-Force - Office-Force . ...

... Activities | ... Collaborations | ... The main objective of laboratory #235 is development of imaging array detectors for different applications (including radio-astronomy, safety and security systems). We develop ultra-sensitive detectors (bolometers) and detector arrays, planar antennas and tuning circuits, refractive and reflective quasi-optical systems focusing millimeter and sub-millimeter wave irradiation on the detectors. ...