.

... Electrons . ... 4a. Electric Fluid . ... First electric currents were brought up, in connection with Oersted's work. ... An electric current is essentially the continuous flow of electric charge. ... By long tradition, the direction of the electric current is defined as the direction in which positive charges move. ... Currents that flow may depend on such voltages, but don't look to Ohm's law for guidance, because the flow of current is primarily dictated by magnetic fields, which makes a...

. B0101ћ8-3012 . Redshift = 0.89, Separation = 16 arcsec. Projected separation is 71/h kpc. The difference in the measured velocities is 300?850 km/s. From the flux ratios, it is clear that the continuum shapes are also remarkably similar. | Front page | . | << - QSO close pairs | . Robert J. Smith, ">rsmith@mso.anu.edu.au Last modified: Fri Sep 24 11:39:02 EST 1999 .

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Although their determination is based on the scattering process model, independent check-ups by rocket experiments have shown their correctness in experimental applications. ... Ionospheric data analysis, especially during strong disturbances, cannot be without some other kinds of diagnostic tools. ... The lack of data has always been a challange in this case. ...

AUTOMATIC STATION OF ECOLOGICAL CONTROL . ... BASIC PERFORMANCE SPECIFICATION . STATE OF ASEC DEVELOPMENT . AIR POLLUTION MONITORING . ... OF MEASURING CHANNELS . ... unit of measurement . ... Nitric oxide (NO) concentration, . ... power measured by ASEC . ... In particular, RSC Energia finalizes its work on measurement systems designed to measure dust, volumetric activity of radioactive gases and aerosols and other environmental parameters. ... Official WEB-site of S.P.Korolev RSC Energia . ...

Next: Model of clusters Up: paper2 Previous: paper2 . ... It allows estimating different microphysical properties of scatterers (size, complex refractive index, shape, etc.) from measured characteristics of the scattered radiation. ... The complexity of the direct problem depends on its input parameters characterizing the shape, size and structure of the scattering particle. ... Next: Model of clusters Up: paper2 Previous: paper2 root 2003-04-11 ...

... The Science Operation Department is composed of Astronomers, Telescope Instruments Operators(TIOs) and Data Handling Administrators(DHAs). ... Astronomers have proposed several methods to quantitatively measure the amount of turbulence above the telescope, which the most common ones is Differential Image Motion Monitor (DIMM). In optical testing, the Hartmann test is the common method to test the quality of optical components. ... Hartmann mask consists of 48 lenses. ...

Astronomy Discussion Forums . Forums: . ... TIME DILATION . ... Time dilation is what we take to be the disagreement in the total time of an event as measured by a moving frame and stationary frame. ... Imagine a car 100km from a stationary observer and which is positioned such that it would travel 200km on a straight line in a direction away from the stationary observer. ... Therefore the total time of motion of the car as measured by the stationary observer is T= t- 100km/C + (100km+200km/C). ...

We have designed the laboratory model of static Fourier spectrometer for onboard usage for spectral study of atmosphere and ionosphere. The gain of model is to simulate onboard FS which will not have any moving elements (all its optical elements will be mounted at fused quartz monolithic construction), to compare experimental results with theoretical estimations and to measure MTF of CCD array. ... This fact connected with low frequency response of CCD array due to small format of it. ...

... Magnetic field experiment on Vega - 1 and 2 spacecraft. ... Two spacecrafts, Vega-1 and Vega-2 have been launched aboard Proton rockets from Baykonour on 15 and 21 December 1984, respectively. ... For magnetic field measurement two-sensor fluxgate system was used. ... During the cruise phase from Earth to Venus both Vega-1 and Vega-2 spacecrafts had one-axis orientation i.e. Bx of magnetometer was directed to the Sun, By and Bz axes were rotated around Bx-axis. ... Vega-1 magnetic data for 1984 . ...

Next: Media Coverage Up: Widening Access Previous: Web-Site Content and Internet Contents . One measure of the success of the Armagh web-site is the annual number of distinct e-Visitors (DeVs), in fact the number of distinct hosts served by the Observatory's web-site. ... For the Observatory's three principal web-sites ( star , climate and arpc65 ), the detailed breakdown of these figures for 2004 is shown in Table 3 (see http://star.arm.ac.uk/stats.html). ... Data Exported . ... 305,000 . ...

... Activity 3: Measuring the Position of the Sun in the Sky . Purpose: To give students the opportunity to measure the position of the Sun in the sky using simple tools and methods. ... Alternatively, you may have students devise their own methods of relative measurement and apply them to measuring the position of the Sun in the sky. ... Rangi is the sky, and when the Sun is near Rangi's head it is summer in New Zealand. ... Read the Maori story to students. ... back to Teachers' Newsletter Main Page ...

... They are known: active quantum frequency standards on the ammonia molecules beams (molecular generator) on the hydrogen generator (hydrogen generator) passive quantum frequency standards on the Cs atoms’ beam (cerium atomic beam tube); active and passive quantum frequency standards with an optical pumping of Cs or Rb steams. The stability of atomic beam quantum frequency standard achieves 10^ - 14. ...

... Tracking stations will be selected in accordance with the schedule issued daily by the General Operative Control Group (GOCG) in Lavochkin Association with the gaps in operations during spacecraft contact with the control stations (CS). ... Communication frequencies (carrier): high data rate information transmission downlink from the SRT ­ 15.000 GHz; uplink synchronization ­ 7.2075 GHz; downlink synchronization ­ 8.400 GHz. ...

... Home Education Classes AAA Winter Astronomy Class: Measuring Distances in Space тАУ Dec 2015 тАУ Feb 2016 . ... Classes . AAA Fall Astronomy Class: Astronomy Basics тАУ October-November 2015 . AAA Winter Astronomy Class: Measuring Distances in Space тАУ Dec 2015 тАУ Feb 2016 . AAA Spring Astronomy Class: The Physics of Astronomy тАУ February - March 2016 . ... This MonthтАЩs Sky тАУ April 2016 . ... Dec. ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ...

While the curtain-like aurorae we see at Earth are green at the bottom and red at the top, NASA's Cassini spacecraft has shown us similar curtain-like aurorae at Saturn that are red at the bottom and purple at the top. This is how the aurorae would look to the human eye. ... Within each element, colors can differ because of atmospheric density, the levels of the atomic version of an element versus the molecular version, and the energy of impacting electrons. ...

... Tiny Tim has been used for generating Hubble Space Telescope ( HST ) point-spread functions (PSFs) for deconvolution, algorithm testing, proposal planning, and optical studies. ... Tiny Tim is a stand-alone program for simulating HST PSFs as viewed with the on-board imaging cameras (WF/PC-1, WFPC2, FOC, COSTAR/FOC). ... The measured aberrations for FOC f/96, WF/PC-1 PC6, WFPC2, and COSTAR/FOC are used by Tiny Tim . ... Figure: FOC f/96 observed and Tiny Tim model PSFs (pre-COSTAR) at 253 nm. ...

... SMIS ] . noise temperature of the low noise amplifier less than 100 K . automatic frequency and polarization adjustment of the received signal . double transform of frequency . power supply: single phase, 220 V, 50 Hz . power consumption: less than 30 Wt . the unit measures: 470 x 300 x 130 mm . weight: less than 10 kg . ... Back to SMIS Home Page . ...

Hubble Finds Oxygen Atmosphere On Jupiter's Moon Europa . Astronomers using NASA's Hubble Space Telescope (HST) have identified the presence of an extremely tenuous atmosphere of molecular oxygen around Jupiter's second moon, Europa . ... Europa's oxygen atmosphere is so tenuous that its surface pressure is barely one hundred billionth that of the Earth," said Principal Investigator Doyle Hall, of Johns Hopkins. ... The oxygen gas slowly leaks into space and must be replenished continuously. ...

. Overview . Package . Class . Use . Tree . Deprecated . Index . Help . PREV NEXT . FRAMES NO FRAMES All Classes . Package Hierarchies: . All Packages . java.lang.Object . ij.measure. Calibration (implements java.lang.Cloneable) . ij.measure. CurveFitter . ij.measure. ResultsTable (implements java.lang.Cloneable) . ij.measure. SplineFitter . ij.measure. Measurements . Overview . Package . Class . Use . Tree . Deprecated . Index . Help . PREV NEXT . FRAMES NO FRAMES All Classes .