... 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 (-...

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• Astronomical Names

Stellarium 0.12.3 . ... Classes . ... FileљStructure . ... ClassљIndex . ... StelIndexBuffer Class Reference abstract . Generic index buffer interface usable with all Renderer backends. ... virtualљ . ... voidљ . addIndex (const uint index) . ... virtual voidљ . ... index . ... virtual void StelIndexBuffer::addIndex_ . ... virtual void StelIndexBuffer::clear_ . ... virtual void StelIndexBuffer::lock_ . ... virtual void StelIndexBuffer::setIndex_ . ... virtual void StelIndexBuffer::unlock_ . ...

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• Stellarium: SphericalRegion::DrawParams Struct Reference
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Computer Ephemeris. Precession/nutation matrix. Explanations. Each row contains for the date specified at 0 h of Time Dynamical Terrestrial nine elements of equatorial precession/nutation matrix minus unity matrix multiplied on 10 8 . This matrix is to be used for coordinate transformation of equatorial coordinates between mean equatror and equinox J2000.0 and real equator and equinox of date. ... This is the matrix for transformation from J2000.0 to date. ...

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• Reduction quantities for Dynamical time. Explanations for Computer Ephemeris.
• Reduction quantities for Sidereal time. Explanations for Computer Ephemeris.
• Lunar orbital data. Explanations for Computer Ephemeris.

... is for inputs/outputs referenced to ground . ... On most architectures, lsampl_t is defined to be uint32. typedef struct comedi _trig_struct comedi _trig; struct comedi _trig_struct{ unsigned int subdev; /* subdevice */ unsigned int mode; /* mode */ unsigned int flags; unsigned int n_chan; /* number of channels */ unsigned int *chanlist; /* channel /range list */ sampl_t * data ; /* data list, size depends on subd flags */ unsigned ... read values from an input channel . ...

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• comedi_data_write
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... Michael E. Lopez-Alegria (Captain, USN, RET.) ... After his second mission, he led the International Space Station (ISS) Operations branch of the Astronaut Office. ... In October 2014 Lopez-Alegria became an independent consultant; he is based in Washington, D.C. SPACE FLIGHT EXPERIENCE: Mission Specialist (MS)-2, STS-73 Columbia (October 20 to November 5, 1995). ... The primary mission objective was delivery of the Expedition 6 crew to the ISS and the return of the Expedition 5 crew to Earth. ...

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• Astronaut Bio: Robert L. Stewart
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• Astronaut Bio: Timothy L. Kopra (10/2014)

... The default value is pointing to the parent directory. ... Link to parent directory $BBC_MAINSITE = ""; => Show no link $BBC_SHOW_CONFIG BBClone defaults to revealing the stats' settings. ... BBC_LANGUAGE = "en"; $BBC_MAXTIME This variable defines the length of an unique visit in seconds. ... BBC_NO_HITS = ""; => Show hits in time stats $BBC_NO_HITS = 1; => Show unique visits in time stats $BBC_IGNORE_IP This option can be used to exclude particular IP addresses or address ranges from counting. ...

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• http://hea.iki.rssi.ru/conf/hea2007/tmp/Mail-Bulkmail-3.12/migration.guide.txt
• http://hea.iki.rssi.ru/conf/hea2007/tmp/Mail-Bulkmail-3.12/blib/man3/Mail::Bulkmail::Object.3pm

When Apache starts, it connects to some port and address on the local machine and waits for incoming requests. By default, it listens to all addresses on the machine, and to the port as specified by the Port directive in the server configuration. ... There are two directives used to restrict or specify which addresses and ports Apache listens to. ... Listen can be used to make a single Apache server listen to more than one address and/or port. ... Syntax: Listen [ port | IP-address:port ] . ...

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• Apache module mod_mime
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.

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• ELECTRICITY GENERATION
• Astronomy 121 Distance Education Class
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. Figure 3. Dark dimmings and bright post-eruption arcades in solar sources of the severest FDs over the solar cycle 23 in SOHO/EIT 195 е fixed-base difference images. The FD magnitude of the strongest disturbances and the dates and time of their registration are specified in the upper right corner of each panel. The dates and time of EIT images subjected to the subtraction are specified at the bottom of each panel.

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Pulkovo NEO Page . ... EPOS Software Package . ... EPOS ( E phemeris P rogram for O bjects of the S olar system) is the Windows PC application for study and ephemeris support of observations of the Solar system objects. ... It controls the part of common data and transfers the control to one of the programs that solve the restricted set of tasks. ... So with the EPOS software package one can calculate the accurate ephemerides for many objects and get the quick illustration of their motion as well. ...

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... source code A class to hold all the information from a NIFS-produced data cube. ... Returns the data content of scidata as a numpy array. source code . ... Returns a spectrum from the specified spaxel, over the designated wavelength or velocity range. source code . ... source code Returns the data content of scidata as a numpy array. ... The fitscube instance is updated in-situ. source code Returns a spectrum from the specified spaxel, over the designated wavelength or velocity range. ...

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• Index of /~kcf/ATA

program fife; var st1 ,st2 : string; str12 : string[12]; m,n,k : word; inpF1 , inpF2 , inpF3 ,inpF, outF : text; d1,d2,d3,d,p : array[1..12] of real; begin { st1 :='D:\(DB5MIN)\1991c\1991kiel'; Assign ( inpF1 , st1 +'\'+'9112kie1.w5u'); Reset ( inpF1 ); Assign ( inpF2 , st1 +'\'+'9112kie2.w5u'); Reset ( inpF2 ); Assign ( inpF3 , st1 +'\'+'9112kie3.w5u'); Reset ( inpF3 ); Assign ( ...

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• http://www.wdcb.ru/stp/data/cosmic.ray/G%20L%20E/C005/YY/E10_UP_Y.PAS
• http://www.wdcb.ru/stp/data/geomagni.ind/Q-and%20D-days/qd.txt

... Exposure Time Calculator (ETC) . Survey processing . ... VISTA is a 4-m class wide field survey telescope for the southern hemisphere, equipped with a near infrared camera (1.65 degree diameter field of view at VISTA's nominal pixel size) containing 67 million pixels of mean size 0.34 arcsec and available broad band filters at Z,Y,J,H,K s and a narrow band filter at 1.18 micron. A wide field visible camera, if constructed, could also be used on VISTA. ... Tile . ... ESO VISTA Public Surveys . ...

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• VISTA Exposure Time Calculator Help v1.0

tranback -- Transform an X,Y position from output to input pixel position using the same conventions as drizzle tranback xout yout . xout = 400 [real] . ... The X dimension of the input image (this is used to determine the centre which is the origin of the transformations). (nyin = 800) [real] . ... If "output" the input image center is mapped to the center of the output grid, rotated about that center and then shifted along the grid of the output image. ...

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• ASNCOMBINE (Nov98) --- nictools --- ASNCOMBINE (Nov98)
• WCS2DR (V1.0) --- Jan00 --- WCS2DR (V1.0)
• TRAXY (V0.4) --- Dec99 --- TRAXY (V0.4)

... Space flight . Crew training . ... honing the skills of performing the tasks of operating the orbital (suborbital) spaceship in a normal autonomous flight and in case of occurrence of off-optimum situations; . ... preparing for conducting visual observations, photographing and video filming envisaged by the flight program; . ... preparing the astronaut's body to the effect of space flight factors, honing the skills of operating the spaceborne medical facilities, rendering self and mutual aid; . ...

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• Plan and technical specifications of the Baikonur cosmodrome, Russia's space
• Tourist flight on the world best jet fighters. MiG-25 Foxbat high-altitude

... Satellite data ] . SMIS ] . The program controls the data acquisition according to the specified schedule of the sessions. ... The calibration of AVHRR instrument data is performed during acquisition . The program can be started in parallel with the satellite pass visualization, that allows the user to monitor a session and store data only relevant to specific regions in manual selection mode. ... Back to SMIS Home Page . ...

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CREW 21/22 . ... ISS-21 IMAGE . ... ISS-22/23 Flight Engineer, . ... In August 1996 Wheelock was assigned to the Johnson Space Center as a test engineer to provide the Shuttle equipment test. ... He was assigned as a lead test engineer participating in the ISS hardware testing. ... In 2001 he was assigned as the support astronaut for the ISS-2 and ISS-4 crews. ... The main objective of the flight was to deliver the new Harmony module to the International Space Station and deploy P6 Solar Arrays. ...

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• S.P. KOROLEV ROCKET & SPACE CORPORATION ENERGIA
• S.P. Korolev RSC Energia - International Space Station

... GRIN lenses for telecommunication optics applications ? GTC (gradient telecom) lenses. ... GTC lenses are used in different fiber-optic devices: collimators, couplers, isolators and WDM etc . ... 2.Diameter . GTC lenses diameters are 1.0 mm, 1.8 mm, 3.0 mm and 4.0mm. ... 1.0 mm -3.0 mm diam GTC lenses are supplied in 0.22P, 0.23P, 0.25P, 0.27P and 0.29P length. 4.0 mm diam GTC lenses are supplied in 0.11P length. ... GTC . ... 3 scratches with 5mkm max width and 200mkm max length are allowed . ...

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... Heracles Triplane and Aerospace Systems . The key characteristics of two-stage aerospace systems are determined according to speed and carrying capacity of the aircraft-carrier used . ... So the SPIRAL system hypersonic carrier was expected to launch the second stage by weight 63 tons at a speed corresponding to 6M; whereas launching weight of the MAKS system orbital stage with the use of the An-225 MRIYA heavy subsonic aircraft reaches 275 tons, and the HERACLES aircraft - 450 tons. ...

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• Bor Vehicles

... Все это просим направлять по адресу: 198904 С.-Петербург, Старый Петергоф, Библиотечная пл. 2, Астрономический институт СПбГУ или по электронной почте: viva@pobox.spbu.ru , krivov@astro.spbu.ru и dpa@astro.spbu.ru . Самый же простой вариант -- прислать сообщение прямо отсюда: . ... не обязательно) . ... Тип Вашего сообщения: . ... Текст Вашего сообщения: . ...

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• AddElem.htm: Add elements
• Statist.htm: Add elements
• Brown et al., AA, V. 426 (2004)