Note that different students may see different quiz forms.) ... Giant stars are rare because . a) they do not form as often as main sequence stars. b) giant stars are unstable. c) the giant stage is very short compared to the main sequence stage. d) elements heavier than helium are relatively rare. In a color-magnitude diagram of a star cluster, the blue end of the main sequence is useful for defining the age of the cluster because . ... 2) Some idea. 3) Good idea. ...

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• Reading Quiz PAUL J. GREEN - ConcepTests
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... 314, 2004 F. Ochsenbein, M. Al len, and D. Egret, eds. VO Enabled Mirage and the IVOA Client Package Samuel Carliles1, Tin Kam Ho2 , William O'Mullane1 1 2 Johns Hopkins University, Baltimore, Maryland Bel l Laboratories, Lucent Technologies, Murray Hil l, New Jersey Abstract. ... In order to increase the value of this tool to astronomers, we have added two features to Mirage, namely a module for viewing FITS images, and the ability to load VOTable data. ...

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Johann Kepler - a Legislator of the Sky. The laws of the planets movements put by Johann Kepler destroyed the thousand year old dogmas about the circles and spheres and opened the way to scientific understanding of celestial occurrences. ... The best object for observation was Mars - its orbit unlike the Earth's one has a noticeable eccentricity, the rotation period in comparison with Jupiter and Saturn is not too long and observation conditions are better than for Mercury and Venus. ...

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... A Teacher's Introduction to the Earth's Magnetosphere . ... Exploration" as a Classroom Resource . A basic chronology of key dates in the exploration of the magnetosphere. ... Radiation Belts. The Sun and the Solar Wind. ... Close-Up of the Aurora. ... The Polar Aurora . ... 10H. History: 1910--Einstein introduces "adiabatic invariants". 10a. Particle Drift in Space (optional) . ... 25H. History: 1903--Birkeland observes the electric currents of the polar aurora. 25a. The Triad Spacecraft . ...

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OptInt PmWiki : Pm Wiki / Page specific variables . ... Page variables have the form {$ variable } , and can be used in page markup or in certain formatting strings in PmWiki. ... Prefixing the variable name with an asterisk (*) means the variable reflects the value related to the target page or main page. ... Namespaced} - spaced page name, as in "Page Variables" . ... Defines new Page Variable of name $CurrentSkin, which can be used in the page with {$CurrentSkin} (also for Conditional markup ). ...

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... PmWiki . ... Basic Variables | ... Page variables have the form {$ variable } , and can be used in page markup or in certain formatting strings in PmWiki . ... Note that these variables do not necessarily exist in the PHP code, because they have to be determined for a specific page. ... Prefixing the variable name with an asterisk (*) means the variable's value is related to the target page or main (body) page. ... Title} - page title (may differ from Name), as in "Page specific variables" . ...

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Astronomes Amateurs du Luxembourg a.s.b.l. " We bring the Universe to you ! Founded in 1971 by a group of enthusiasts and star aficionados, our association is now counting more than 130 members.As a national association we attract hobby astronomers from the whole country to our regular night-sky observations and to the meetings in our club at Dudelange. ... by topic : PDF File Download (360KB) . ... Article about AAL in "Le Quotidien" newspaper of Juli 21 2005 - PDF File Download (132KB) . ...

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... Enter Authors : (Last, F.I.) (one per line) Exact Author name search ( OR AND simple logic ) Shakura, N. Lipunov, V. Postnov, K. Prokhorov, M. Panchenko, I. Nazin, S. Ketsaris, N. Popov, S. Raguzova, N. Sazhin, M. Petrov ... Belokurov, V. Kosenko, D. Drozdova, D. Kuranov, A. Zeldovich, I. Zeldovich, J. Zeldovich, Y. Zelmanov, A. Zelmanoff, A. Publication Date : From: To: Month(MM) Year(YYYY) Month(MM) Year(YYYY) Enter Title Words : (Combine with: OR AND simple logic boolean ...

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... Meade Instruments Corporation . ... Choosing the Right Microscope . ... On most microscopes the specimen glass remains fixed while the microscope's objective lens and eyepiece move as a unit up or down to focus the image. ... Eyepieces of varying powers work with objective lenses of varying powers to yield a range of microscope magnifications. ... Magnification: The effective magnification of a microscope is determined by multiplying the eyepiece power by the objective lens power . ... about meade |...

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... Dept. for Astrometry & Space Geodynamics . ... Dept. for Physics of Stars&Galaxies . ... Dept. for Physics of Planetary Systems . ... Science . ... All Pages . ... Research of the stars with planets which pass apparent star disk (transiting exoplanets). The transit method based on a detection star brightness decrease during a passing of planet in front of its disk. Observed brightness system decries when planet pass star disk and its volume depend of the relative sizes star and planet. ...

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II-VI compound crystal growth, HPVB & HPVZM basics . ... Developed and first time applied for II-VI compound crystal growth in our lab back in late sixties [1]. ... Basics . The II-VI compounds have particular physical-chemical properties that present a challenge for the crystal growth. ... In the general case of II-VI compounds and HPVB growth conditions: . ... These peculiarities of composition stipulate another problem of the II-VI compound crystal growth from the melt - "bubbles". ...

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... Уголки, кронштейны, пластины . Матрас Nido Magia Form Lana 75х75 BabySleep обеспечит правильный и здоровый сон. ... Рассматриваемый матрас состоит из экологически чистых 'кокосовых плит', основой служит блок Natural form, а .. Матрасы . ...

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The database contains references to the papers, data files and links to the Internet resources related to measurements and calculations of the optical constants in the wavelength interval from X-rays to radio domain. ... References to some useful books and reviews on the subject (e.g. the classical handbooks edited by E.D.Palik) and links to Internet collections of optical constants and personal WWW pages with related software were also placed in the database. You have arrived at our welcome page. ...

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• Database of Optical Properties -- Level: subsubpage
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National Aeronautics and Space Administration . ... JOHN E. BLAHA (COLONEL, USAF, RET.) NASA ASTRONAUT (FORMER) . ... EDUCATION: Graduated from Granby High School in Norfolk, Virginia, in 1960; received a bachelor of science in engineering science from the United States Air Force Academy in 1965 and a master of science in astronautical engineering from Purdue University in 1966. ... NASA EXPERIENCE: Selected as an astronaut in May 1980, Blaha has logged 161 days in space on 5 space missions. ...

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... Чтобы представить заполняемую форму, используемую для таких действий пользователя, как регистрация, упорядочение пользователя или формирование запроса. ... Нечто подобное заполняемой на бумаге форме. FORM ACTION=" URL "> . содержание формы, включая элементы INPUT и, возможно, элементы TEXTAREA и SELECT . FORM> . ... Пример FORM-1.html : <FORM ACTION="mailto:Jukka.Korpela@hut.fi" METHOD=POST> <TEXTAREA ROWS=5 COLS=72 NAME=Comments></TEXTAREA> <P> <INPUT TYPE=SUBMIT VALUE=Send> </FORM> . ...

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A team of U.S. and German astrophysicists have made the first ever detection of X-rays coming from a comet. ... Following the initial detection, the team reported repeated X-ray emissions from the comet over the next 24 hours. ... One preliminary theory is that X-ray emission from the Sun was absorbed by a cloud of gaseous water molecules surrounding the nucleus of the comet, and then were re-emitted by the molecules in a process physicists call "fluorescence." ... Comets . ...

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... The variability of the spectrum of the optical component of the IR-source IRAS01005+7910 was discovered for the first time in the BTA spectra [1]. ... The spectral features include absorptions that form in near-photospheric layers, narrow envelope emissions, and emission-absorption profiles that form in photosphere-to-envelope transition layers (the wind). ... Discovery of spectral variation in the optical counterpart of IRAS01005+7910. ... Dashed line - envelope curve of all the SiII 5979 profiles ...

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Program Id: . ... UTC End Time: . Astronomer/PI Name(s): . ... Observer Name(s): . Nightlog Day: Sunday Monday Tuesday Wednesday Thursday Friday Saturday Month: January Febuary March April May June July August September October November December Day (DD): Year (YYYY): Full Night A (First half) B (Second half) Special Schedule . ... Note: Open this weather logfile program in another browser window. Please copy and past the resultant info below at the end of the night) . ...

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MODERN APPROACHES TO CALCULATION OF THE PROPERTIES OF MATERIALS FOR ENERGY STORAGE A. Kabanov Samara State University The modern technologies demands to compact and effective rechargeable systems of energy storage. ... In this work we investigated the activation energies of one promising compound ­ Li2CoPO4F using combination of two methods ­ ab-initio and geometrical calculations. ... The nudged elastic band (NEB) method is adopted to find the kinetic energy barrier along diffusion pathways. ...

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• SSAU develops cooperation with the world's leading technology corporations

... Robert Naeye, Editor in Chief of Sky Telescope Magazine . ... NASA's Gamma-Ray Large Area Space Telescope (GLAST), recently renamed FERMI Gamma Ray Space Telescope, is a powerful space observatory that will open a wide window on the universe. ... He was recently the Senior Science Writer in the Astrophysics Science Division at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

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