... 2009 July 6 . Unknown Dark Material on Mercury . Credit: MESSENGER , NASA , JHU APL , CIW . ... Pictured above on the lower right, a large crater -- about 100 kilometers across -- has unusual dark material of unknown composition near its center. ... If so, the composition of the dark mound might be similar to the composition of some mysterious dark ring s also recently discovered on Mercury. Alternatively, the dark material could be related to an unusual composition of the impacting rock . ...

... Educational programs (English) . ... SSAU History . ... On June 11 Heinz Palkovski, Director of Institute of Metallurgy from Germany conducted a lecture on Preparation, testing and use of sandwich materials . ... The very same material is a sandwich, where the base and the filler arranged in layers of a certain thickness. ... Professor Heinz Palkovski is currently engaged in research of sandwich materials and his lecture was devoted to this theme. ... Tags: heinz palkovski lecture sandwich materials...

Nalini Chandra & John Percy, University of Toronto . ... Some works to refer to when using multicultural astronomy in your classroom: . ... Nalini Chandra is a doctoral candidate at the University of Toronto in the Department of Curriculum Teaching and Learning at OISE/UT. ... OISE-University of Toronto . ... John Percy, Professor of Astronomy at the University of Toronto, is a Past President of the ASP, and is active in astronomy education at all levels. ... ASP Multicultural Astronomy Resources . ...

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. ...

. Note: This material is from a 1994(!) Talk about CCDs - the physics remains the same, only the detector size has increased since then. ___________________________________________________________________ The Electronic Universe Project e-mail: nuts@moo.uoregon.edu

... Science . ... Science Users Information > Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Thesis Topic: Why most supermassive black holes do not accrete material . ... Implicitly, we will also better understand why most supermassive black holes fail in accreting material. ... 1) Analyse multi-wavelength data for selected galaxies to describe and quantify the different physical phenomena in their centres, and most notably to derive their central supermassive black hole masses....

... Open here the home page of a Spanish translation "La Exploraci n de la Magnetosfera Terrestre" , by J. M ndez of Algorta, Spain. Open here the home page of a French translation L'Exploration de la Magn tosph re Terrestre , by Kamil Fadel and Marielle Verg s of Paris, France. ... Both home pages list translated files in bold face . ... This is the home page of an overview of space research on the Earth's environment in space. ... A Teacher's Introduction to the Earth's Magnetosphere . ...

Orbital intersection . ... Structure of Taurid stream . ... Meteoroid swarm and Taurid fireballs . ... The following four diagrams schematically show four different Taurid orbits and the orbits of Earth and Jupiter. ... The Taurid stream contains particles (small, solid grains) at different stages of their precession cycles. ... The study of when a meteor stream can produce a meteor shower is the study of when precession brings orbits to intersection with Earth, or e.g. with Mars . ...

... New families of high-temperature composite materials: . refsic, refsicoat and refsicut. ... In Institute of Solid State Physics of Russian Academy of Sciences (ISSP RAS) refsic, refsicoat and refsicut new families of high-temperature composite materials were invented and developed last years. ... Possible applications of refsic , refsicoat and refsicut materials . ... тАв€а orders on R&D oriented on design of new patentable technical products, using refsic , refsicoat and refsicut materials. ...

... HST . ... APT . ... HST Overview . ... Phase I Proposing . ... Astronomer's Proposal Tool . ... So we have provided a series of short training movies to demonstrate the APT tools - feedback from GOs shows the movies are highly recommended. ... General Overview of APT GUI . Yes . 6 mins. ... Note: The Phase I Proposal Roadmap contains all of these links in a high level step-by-step proposal writing procedure. ... Creating mosaics in Phase I . ... 5.5 min . ... Creating a Big Phase II Proposal . ...

. A dark snaking line in the upper right of these images on Sept. 30, 2014, show a filament of solar material hovering above the sun's surface. NASA's SDO captured the images in extreme UV light different colors represent different wavelengths of light and different temperatures of solar material. NASA/SDO

... It has been largely superceded by MatWeb . Conversion Factors . Material properties . Physical constants . Astronomical constants . This table gives conversion factors to convert various units to their SI equivalents. ... The units are SI. This is a short list of physical constants in SI units. ... Boltzmann constant . ... Gas constant . ... Mass . ... Plank's . ... Radiation constant . ... This is a short list of astronomical constants in SI units. ... Sun . ...

. Search this album . Gallery . :: Stromlo Reconstruction . :: Demolition of houses . :: Toxic materials were sealed in drums before dтАж . Sidebar Left . Sidebar Top . No Sidebar . Sidebar Bottom . Sidebar Right . View full size . Title: Toxic materials were sealed in drums before disposal. File name: DSCN1188.jpg . Dimensions: 432 x 324 px . Page: 1 2 3 4 5 6 7 8 9 10 62 63 . Powered by Gallery 3.0.9 (Chartres) . Login

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. ...

P. Frisch - Warm partially ionized interstellar gas at the Sun . ... W. M. Goss - Time variations in small-scale galactic HI structure toward 3C138 . S. Stanimirovic - Does tiny-scale atomic structure exist in the ISM? ... T. Bania - The distance to molecular clouds via HI self-absorption . ... C. Heiles - Arecibo Millennium Survey statistics of magnetic field, column density and turbulence in the CNM . R. Crutcher - Magnetic fields in molecular clouds . ...

... Bojan Nikolic web pages (r. 329) . Statistics for astronomy graduate course . Lecture hand outs 2008/9 . ... Materials . Astrophysical techniques graduate course . Lecture Slides . ... The search results are restrict to these pages only . ... Copyright 2005 -- 2016, Bojan Nikolic feedback welcome ...

Iapetus . Saturn VI . Iapetus [eye-AP-i-tus] is one of the stranger moons of Saturn. ... Its leading side is dark with a slight reddish color while its trailing side is bright. ... If the dark material is thin, it must be constantly renewed since a meteor impact would punch through the layer to reveal brighter surface material. The dark material may have originated from Phoebe , which has a very low albedo . ... Orbital period (days) . ... Credit: Calvin J. Hamilton) . ...

... Unknown Dark Material on Mercury . ... 6.07.2009 . ... Credit: MESSENGER , NASA , JHU APL , CIW Explanation: What is that strange material on Mercury? ... Pictured above on the lower right, a large crater -- about 100 kilometers across -- has unusual dark material of unknown composition near its center. ... One origin hypothesis is that the dark material was uncovered from beneath Mercury's surface during the impact that created the surrounding crater. ... Publications with keywords: Mercury . ...

... II-VI Semiconductors . ... CdS . ZnS . ... ZnS -UV-radiation semiconductor lasers for optical lithography . ZnSe - blue radiation semiconductor lasers for projection systems . ... Zn 1-x Cd x Se - light-blue and red radiation semiconductor lasers for projection systems light modulators . Zn 1-x Cd x S -light-blue and red radiation semiconductor lasers for projection systems . Zn 1-y Cd y S 1-x Se x -UV and light-blue and red radiation semiconductor lasers for projection systems . ...

... Fill out the Application form . Attention: In the very unlikely case that you do not receive our reply within three business days after your form was sent, please check your spam folder and contact us at mim@mccme.ru . ... Please note that if you are applying for a scholarship (including AMS-NSF scholarships) you have to fill out the application form on the corresponding website and to provide recommendation letters and other required documents independently of the application process here. ...