World Library  


 
  • Cover Image

Evidence of Things Unseen: Why Not Dark Matter?

By: Les Johnson

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...

Read More
  • Cover Image

The Closest Extra-solar Planet to Earth: What's Alpha Centauri Bb ...

By: Les Johnson

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....

Read More
  • Cover Image

Becoming Martian

By: Terry Burlison

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 ...

Read More
  • Cover Image

It's Lonely Out There: The Evolutionary Explanation for the Fermi ...

By: John Lambshead

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.

Read More
  • Cover Image

Rediscovering the Universe

By: Les Johnson

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.

Read More
  • Cover Image

The Exoplanet Hunters

By: William Ledbetter

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

Read More
  • Cover Image

R.I.P., Moc

By: Terry Burlison

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!)

Read More
  • Cover Image

Rediscovering the Solar System

By: Les Johnson

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.

Read More
  • Cover Image

Fate of Colloids During Estuarine Mixing in the Arctic : Volume 10...

By: C. Causserand; L. S. Shirokova; T. Y. Vorobieva; A. V. Chupakov; F. Candaudap; V. P. Shevchenko; J. Viers; V. V. Gordeev; O. S. Pokrovsky; A. Lanzanova; C. Zouiten

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...

Read More
  • Cover Image

Smithsonian Contributions to Knowledge

By: Smithsonian Institution

Description: Mode of access: Internet

Read More
  • Cover Image

Science; Volume: 15

By: Michels, John, 1875- edt; American Association for the Advancement of Science

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

Read More
  • Cover Image

Effects of the Climate Change on Regional Ozone Dry Deposition : V...

By: R. Mészáros; I. Lagzi; E. Kolozsi-komjáthy

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...

Read More
  • Cover Image

Data-driven Exploration of Orographic Enhancement of Precipitation...

By: A. Pozdnoukhov; M. Kanevski; L. Foresti

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...

Read More
  • Cover Image

New York State Museum Bulletin

By: New York State Museum

Description: Title from cover

Read More
  • Cover Image

Jahresbericht Der Schlesischen Gesellschaft Für Vaterländische Kultur

By: Schlesische Gesellschaft Für Vaterländische Kultur

Description: Suspended 1919-23

Read More
  • Cover Image

Transactions and Proceedings of the Royal Society of Victoria ..

By: Royal Society of Victoria (Melbourne, Vic.)
Read More
  • Cover Image

A Method to Generate Fully Multi-scale Optimal Interpolation by Co...

By: A. Alvera-azcárate; I. Tomazic; A. Barth; J.-m. Beckers

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, ...

Read More
  • Cover Image

Proceedings of the American Philosophical Society; Volume: 17 (187...

By: American Philosophical Society

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

Read More
  • Cover Image

[Mémoires Et Procès-verbaux]

By: Congrès Scientifique De France

Description: Mode of access: Internet

Read More
  • Cover Image

Zapiski Imperatorskoï Akademiia Nauk SSSR. Mémoires De L'Académie ...

Description: Each issue has also a distinctive title

Read More
 
1
|
2
|
3
Records: 1 - 20 of 45 - Pages: 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Fair are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.