Description: Les Johnson describes what scientists have discovered about Dark Matter.
Excerpt: Scientists now believe that dark matter accounts for about 84 percent of the matter in the universe. In other words, when you look into the sky and add up the mass of the planets, the Sun, all the stars (many of which, we now know, have planets circling them), the black holes, pulsars and quasars you will have only accounted for about 16% of the mass that should be there – if our understanding of gravity and its effects are correct. Something different (not made...
Description: Les Johnson talks about the new discovery of a possible earth-like planet that scientists have found in the Alpha Centauri star system.
Excerpt: Alpha Centauri A and B are particularly interesting for astronomers and science fiction writers because they are both very similar to our sun. If Sol, our sun, is “just right” for producing planets with life, then it would make sense that other similar stars could do the same. And since they are close, at least in astronomical distances – I wouldn’t call being ~25,278 billion miles away “close,” – any planets found there would be exciting and hugely significant....
Description: This article presents new scientific findings which, with great hope, will take us steps closer to being able to travel to Mars.
Excerpt: Mars One intends to launch robotic missions beginning in 2016, establishing a communications and life-support infrastructure for the explorers while training private citizens for arrival several years later. The colony will consist of landers launched every two years and configured for different purposes: Life Support Units, Supply Units, and Living Units (with inflatable habitats). As each lander arrives, a rover/trailer, launched in 2018, will transport it to ...
Description: This article touches into the Fermi Paradox. It explains different theories by numerous scientists on the Fermi Paradox and John Lambshead's opinion on the theories.
Excerpt: Another untestable possibility is that aliens are deliberatively quarantining Earth for some social, scientific or alien reason. This is known somewhat unflatteringly as the Zoo Hypothesis. Presumably, some pettifogging minor official in the Galactic Central Bureaucracy has decided that we are not ready, or worthy, or whatever, to join the great Galactic Society.
Description: Les Johnson takes history back to when the Universe was first created about 14 billion years ago. He explains the theories that scientists have developed about our currently expanding universe.
Excerpt: Since the stars in a galaxy, like our Milky Way Galaxy, orbit the massive black hole at their center in a manner similar to the way the planets in our solar system orbit the Sun, one would expect that the stars nearer the center of the galaxy to orbit faster than those near the edge. Unexpectedly, when astronomers measured their orbital velocities, they weren't moving as expected. In fact, measurements indicate that all of these stars are moving at about the same angular speed.
Description: This article lists a few discoveries made by scientists about our solar system and the tools used to make these discoveries.
Excerpt: Gravitational Microlensing is also an interesting, if less used way, to find extrasolar planets. When a small star passes in front of a larger star, its gravity works like a magnifying glass, warping and brightening the farther star's light. If a planet is orbiting the nearer star, that planet will also warp the light from the distant planet, causing it to brighten even more and for a measurable period of time
Description: This article explains the history of MOC (Missions Operations Computer) from its birth up to when it 'retired'.
Excerpt: The MOC’s original IBM 7094 was the fastest, most powerful computer of its day. It sported a whopping 64K of main core storage, the area of a computer where programs actually run. To get a sense of scale, consider that a modern laptop has about the same memory capacity as 100,000 MOCs. (Playing my copy of Angry Birds would require the memory of 500 IBM 7094s. And while fast for its day, the machine would require several months of 40-hour weeks to play a single minute of the game!)
Description: This article takes you back to our solar system. Over the years our solar system has changed. This article gives you up to date imformation about whats happening in our current day solar system.
Excerpt: It is likely that in the 4.5 billion year history of the Solar System, we’ve come close enough to other star systems for us to share members of our Oort Cloud with theirs. Yes, some of the objects now circling our star might actually have originated elsewhere – from around a star now long-gone on its own trek around the Milky Way.
Description: Georesources and Environment Toulouse GET, UMR5563, CNRS, Université Paul Sabatier, 14 Avenue Edouard Belin, 31400 Toulouse, France. The estuarine behavior of organic carbon (OC) and trace elements (TE) was studied for the largest European sub-Arctic river, which is the Severnaya Dvina; this river has a deltaic estuary covered in ice during several hydrological seasons: summer (July 2010, 2012) and winter (March 2009) baseflow, and the November–December ...
Alfaro-De la Torre, M. C., Beaulieu, P. Y., and Tessier, A. T.: In situ measurement of trace metals in lakewater using the dialysis and DGT techniques, Anal. Chim. Acta, 418, 53–68, 2000.; Allard, T., Menguy, N., Salomon, J., Calligaro, T., Weber, T., Calas, G., and Benedetti, M. F.: Revealing forms of iron in river-borne material from major tropical rivers of the Amazon Basin (Brazil), Geochim. Cosmochim. Ac., 68, 3079–3094, 2004.; Amon, R. M. W. and Benner, R.: Photoch...
Description: Mode of access: Internet
Supplemental catalog subcollection information: American Libraries Collection; Historical Literature; All the latest news for the scientific community, including daily news from ScienceNOW and weekly news from Science magazine.; A weekly record of scienti
Description: Department of Meteorology, Eötvös Loránd University, Budapest, Hungary. This impact study investigates connections between the regional climate change and the tropospheric ozone deposition over different vegetations in Hungary due to the possible changes of atmospheric and environmental properties. The spatial and temporal variability of the dry deposition velocity of ozone was estimated for different time periods (1961–1990 for reference period and two...
Ashmore, M., Emberson, L., Karlsson, P. E., and Pleijel, H.: New directions: A new generation of ozone critical levels for the projection of vegetation in Europe, Atmos. Environ., 38, 2213–2214, 2004.; Bartholy, J., Pongrácz, R., Gelybó, Gy., and Szabó, P.: Analysis of expected climate change in the Carpathian Basin using the PRUDENCE results, Id\H{o}járás, 112, 249–264, 2008.; Gerosa, G., Marzuoli, R., Desotgiu, R., Bussotti, F., and Ballarin-Denti, A.: Validation of th...
Description: Institute of Geomatics and Analysis of Risk, University of Lausanne, Switzerland. This study presents a methodology to analyse orographic enhancement of precipitation using sequences of radar images and a digital elevation model. Image processing techniques are applied to extract precipitation cells from radar imagery. DEM is used to derive the topographic indices potentially relevant to orographic precipitation enhancement at different spatial scales, ...
Frei, C.: Eine Länder übergreifende Niederschlagsanalyse zum August Hochwasser 2005. Ergänzung zu Arbeitsbericht 211., Tech. rep., Arbeitsbericht MeteoSchweiz Nr. 213, 2006.; Germann, U. and Zawadzki, I.: Scale-dependence of the Predictability of Precipitation From Continental Radar Images. Part I: Methodology, Mon. Weather Rev., 130, 2859–2873, 2002.; Gray, W. R. and Seed, A. W.: The characterisation of orographic rainfall, Meteorol. Appl., 7(2), 105–119, 2000.; Hartiga...
Description: Title from cover
Description: Suspended 1919-23
Description: GeoHydrodynamics and Environment Research, MARE, University of Liège, Sart-Tilman B5, 4000 Liège, Belgium. We present a method in which the optimal interpolation of multi-scale processes can be expanded into a succession of simpler interpolations. First, we prove how the optimal analysis of a superposition of two processes can be obtained by different mathematical formulations involving iterations and analysis focusing on a single process. From the...
Beckers, J.-M. and Rixen, M.: EOF calculation and data filling from incomplete oceanographic datasets, J. Atmos. Ocean. Tech., 20, 1839–1856, 2003.; Alvera-Azcárate, A., Barth, A., Rixen, M., and Beckers, J.-M.: Reconstruction of incomplete oceanographic data sets using Empirical Orthogonal Functions. Application to the Adriatic Sea Surface Temperature, Ocean Model., 9, 325–346, doi:10.1016/j.ocemod.2004.08.001, ...
Supplemental catalog subcollection information: Medical Library Collection; Historical Literature; V.81; no.2. Symposium. Progress in astrophysics. 1939; Biological abstracts; Chemical abstracts; Engineering index monthly; Issued irregularly in parts which, in v. 1-54 are numbered consecutively no. 1-220; in later vols. the consecutive numbering was discontinued; vols. 1-50, 1838-1911; vols. 51-75, 1912-1935; vols. 76-100, 1936-1956; Elecresource; Engineering index annual
Description: Each issue has also a distinctive title