... Carefully measure the diameter of the craters formed by the impact without disturbing the sand. ... Crater diameter increases with increasing mass. ... Without disturbing the sand, carefully measure the crater diameter. ... Did you measure any difference in the diameters of the craters? Yes, as velocity increases, so does crater diameter. ... Impact cratering. ... Impact craters can be demonstrated with younger or less advanced students using mud instead of sand and ball bearings. ...

... Pulsars offer a variety of observables for study of interstellar scattering. Observations of scattering of nearby pulsars and intra-day variable quasars point to the existence of a component of the interstellar medium (ISM) which has properties quite different from the more distant, diffuse ISM. ... The time series of electric field emitted by the pulsar is convolved with an impulse-response function due to scattering, when sampled at the observer plane [1]. ... Nearby interstellar scattering. ...

Find Similar Abstracts . ... The theory of large-scale structure of the universe - Local properties and global topology . Authors: . ... 00/1983 . ... ASTRONOMICAL MODELS, BIG BANG COSMOLOGY, GALACTIC CLUSTERS, GALACTIC STRUCTURE, UNIVERSE, ANISOTROPY, GALACTIC EVOLUTION, NEUTRINOS, TOPOLOGY . ... Use: Authors Title Text Query with Keywords Return: Query Results Query Form Database: Astronomy Instrumentation Physics and Geophysics ABSTRACT QUERY USER FEEDBACK HELP ...

ПУБЛИКАЦИИ - 1994 год . G.Ya.Smolkov , V.P.Nefedyev, A.M.Uralov , N.N.Kardapolova. Step-wise emergence and development of microwave emission of active regions-a fundamental property of active solar corona. Solar coronal structures, Proc of 144th IAU Coll, Veda, Publhouse of SAS, - 1994. ... The observations of solar microwave bursts at the Siberian solar radio telescope with 50-millisecond resolution. ... Nato Rubl/Nauka, - 1994. ... Electron beam propagation in the solar corona. ... 1994. ...

... Empirical and theoretical modeling of 3-D structures in the solar corona is confronted by the tremendous amount of data needed to represent phenomena with a large dynamic range both in size and magnitude, and with a rapid temporal evolution. Octree representation of the 3-D coronal electron distribution offers the right compromise between resolution and size, allowing computation of synthetic images of the solar corona. ... The time interval between images is one day. ...

... Part 00 PDF Introduction and Overview . ... Part 02 PDF Stars Phenomenology . Part 03 PDF Stellar Structure . Part 04 PDF Stellar Evolution . ... Part 06 PDF Basic Properties of Galaxies . Part 07 PDF Chemical Evolution . Part 08 PDF Stellar Dynamics . Part 09 PDF Spiral Galaxies . Part 10 PDF Elliptical Galaxies . Part 11 PDF Dwarf Galaxies . Part 12 PDF Active Galaxies . Part 13 PDF Large Scale Structure . ... Part 16 PDF Galaxy Evolution . ...

ATM Forum Message . Forums: . ... Post . ... Tool Base Material? ... Post Message | ... I've used Pour Stone in the past to make grinding and pitch lap tool bases. ... The pour stone tools worked quite well, but I've read about dental stone and that it doesn't need to be sealed and it doesn't seem to take very long to set up. ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Progress in science is inversely proportional to the number of journals" . ... PHYSICS JOURNALS . SPIRES-HEP Database Covers more than 415,000 high-energy physics related articles, including journal papers, preprints, e-prints, technical reports, conference papers and theses, received by the SLAC and/or DESY Libraries since 1974. ... Journal of Physics G: Nuclear and Particle Physics . ... Journal of Geometry and Physics (Special Issues) . ... Journal of Nuclear Materials (Special Issues) . ...

To the Deputy Head of the Administration of Russian Federation President Mr. A.V.Ogarev . ... First the international space station (ISS) Alpha, which is under construction now, will compare to the OS Mir on the amount of information only in 5-7 years. ... Thirdly, the participation of Russian Federation in the international space projects, including work on the international space station (ISS) Alpha, is to be aimed first of all at the providing of Russian interests. ...

Download Izmccd (~2.7 MB). ... a) a choice of the best mode of measurements of stars and objects ("Properties/Measurement"), . b) a choice of reference stars. ... 1) necessity of presence on an image of a plenty of stars (we recommend to apply this mode, if on the frame of reference stars is more 100) . ... Sx and Sy depend from residuals at all reference stars (reference stars are marked by blue color). ... These residuals are the image of the star a minus function of a profile for each pixel. ...

... Charles J. Camarda (Ph.D.) . ... AWARDS: б  NASA Certificates of Recognition (12); Sustained Superior Performance Awards (2); Special Achievement Awards (2); Technology Commercialization Awards (2); Space Station Program Team Excellence Award; NASA Group Achievement Award; NASA Superior Accomplishment Award; NASA Honor Award; One NASA Peer Award; Research and Development 100 Award from Industrial Research Magazine for one of the top 100 technical innovations in 1983, a Heat-Pipe-Cooled Sandwich...

This directory contains material for running demonstrations of the routines in the IRAF.STECF package impol To run these demonstrations IRAF/ STSDAS is mandatory and the impol package must be loaded The directory is composed of the following files : reflneb.fits A 512x512 intensity image of a model reflection nebula demo_foc.cl demo_nicmos.cl IRAF cl scripts for running the demo's for the demo_wfpc2.cl three HST instruments and a SPECIAl (non-HST) demo_special.cl ...

... While there is practically no detector noise present at energies above , X-ray data below are considerably contaminated by noise events, which become more and more dominant towards the lowest transmitted energies (Fig. ... Investigations of 40 hours of in-orbit calibration data with the filter wheel closed, taken over a period of more than two years, showed that the noise properties vary with position and energy, but are fairly stable in time for most areas on the detector. ...

. Эмблема основной программы полета первого японского астронавта. First Material Processing Test .

... Солнечные и гелиосферные возмущения, приведшие к сильной магнитной буре 20 ноября 2003 года. ... Для анализа взят интервал с 15 октября по 21 ноября 2003 г., за который произошло 11 солнечных вспышек рентгеновского класса выше X и 3 геомагнитные бури с Dst Таблице (MSWord) . ... Наблюдения мощных активных областей в октябре-ноябре 2003г. в микроволновом диапазоне волн на РАТАН-600. MSWord 464Kb) . ... Солнечные и гелиосферные явления в октябре-ноябре 2003г.: Причины и следствия ; Космич.Исслед. ...

Pulsar - the neutrone star. ... Its physical properties are greatly changed. ... Naturally after the discovery of pulsar connection with the remains of the supernew star outbursts it was supposed that the pulsars and the neutron stars are the same objects. ... In the external layer of a neutron star, where the substance dense is not so great to break the cores; they may from the hard chip structure, which at the pulsar rotation decreasing is broken the starquake. ...

... We publish 16 Doppler imaging temperature maps for the years 1994-2002 of the active RS CVn star II Peg. ... Through Doppler imaging we want to study the spot evolution of the star and in particular compare this with previous results showing a cyclic spot behaviour and persistent active longitudes. ... The derived temperature maps are quite similar to the ones obtained earlier with a different methods, the main differences occurring in the spot latitudes and relative strength of the spot structures....

... part 1 | ... The Basic Stages in Earth's Pre-geological Development . ... After fragments of the Vortex sleeves separated, whirlwinds of second and third orders ("NC" - new micro-vortex) were generated- future planet cores and their satellites - all of them developing independently, governed by the common laws of development of cosmogenic vortexes. ... Our planet's core today is comprised of considerably deteriorated cosmogenic vortex; consequently, the Earth has a moderated magnetic field. ...

Class 1 Introduction, Background History of Modern Astronomy The Night Sky, Eclipses and the Seasons Kepler's Laws Newtonian Gravity General Relativity Matter and Light Telescopes Class 2 Solar System Characteristics Formation Exosolar Planets Class 3 Stars The S un Stellar Evolution of Low and High Mass Stars Deaths of Stars Exotic Stars Class 4 Galaxies Galaxy Classification Formation of Galaxies Galactic ... Low mass stars live and die differently than high mass stars. ...

Main . ... About meteorites . ... What to do if you found a meteorite! ... About the laboratory . ... You may have a question: what to do if you found a stone which looks like meteorite. ... According to the Meteorite Nomenclature Committee, in order for a meteorite to be officially registered in the International Meteorite Catalog, 20% by weight of the main mass of the identification sample must be contributed to a qualified scientific organization. ... The Staff of the Laboratory of Meteoritics. ...