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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.

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Rendevous and Docking: a User's Guide for Non Rocket Scientists

By: Terry Burlison

Description: A user's guide for non rocket scientists for rendevous and docking.

Excerpt: Two times each day, your launch site will pass directly under the plane of your target orbit. This is when you must launch! If you delay, you will be launching into a different orbital plane; even if it has the same inclination, it will cross the equator at a different point and create a wedge angle between the orbits. Since the earth rotates 360° in 24 hours, elementary school math tells you that’s a degree every 15 minutes. Very quickly, you’ll be too far out ...

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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.

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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.

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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....

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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

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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...

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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!)

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Atmospheric Boundary Layer Wind Profile at a Flat Coastal Site – W...

By: S.-e. Gryning; E. Batchvarova; A. N. Hahmann; T. Mikkelsen; R. Floors; A. Peña

Description: Wind Energy Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark, P.O. Box 49, 4000 Roskilde, Denmark. Wind profiles up to 600 m height are investigated. Measurements of mean wind speed profiles were obtained from a novel wind lidar and compared to model simulations from a mesoscale model (WRF-ARW v3.1). It is found that WRF is able to predict the mean wind profile rather well and typically within 1–2 m s−1

Blackadar, A.: The vertical distribution of wind and turbulent exchange in a neutral atmosphere, J. Geophys. Res., 67, 3095–3102, 1962.; Chen, F. and Dudhia, J.: Coupling an advanced land surface-hydrology model with the Penn State-NCAR MM5 modeling system. Part I: Model implementation and sensitivity, Mon. Weather Rev., 129, 569–585, 2001.; Draxl, C., Hahmann, A., Pe{ñ}a, A., Nissen, J., and Giebel, G.: Validation of boundary-layer winds from WRF mesoscale forecasts wit...

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Comptes Rendus Hebdomadaires des Seances de L'Academie des Science...

By: Académie des Sciences (France); Centre National de la Recherche Scientifique (France)

CIS abstracts; Vols. 1 (1835)-31 (1850). 1 v.; Vols. 32 (1851)-61 (1865). 1 v.; Vols. 62 (1866)-91 (1880). 1 v.; Vols. 92 (1881)-121 (1895). 1 v.; Vols. 122 (1896)-151 (1910). 1 v.; Vols. 212 (1941)-241 (1955). 1 v; The proceedings for the period prior to 1835 are contained in: Acad‚mie des sciences (France). ProcŠs-verbaux des s‚ances de l'Acad‚mie tenues depuis la fondation de l'Institut jusqu'au mois d'ao–t 1835; Split into: Comptes rendus hebdomadaires des s‚ances de...

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Öfversigt Af Kongl. Vetenskaps-akademiens Forhandlingar

By: Kungl. Svenska Vetenskapsakademien

Description: Supplements accompany some issues

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Nature; Volume: 55 Nov. 1896 - Apr. 1897

By: Lockyer, Joseph Norman, Sir 1836-1920, Editor

Rare book preservation notes: Due to the deteriorated condition of this book, there were limitations with the digital preservation of this books. There may be pages missing, narrow margins or page content running into the gutter. Because of the historic u

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Nyt Magazin for Naturvidenskaberne

By: Physiographiske Forening I Christiania

Description: Vols. for 1836-1873 issued by the Physiographiske forening i Christiania

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Transactions and Proceedings and Report of the Royal Society of So...

By: Royal Society of South Australia
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Multi-scale Optimal Interpolation: Application to Dineof Analysis ...

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 untangled 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 th...

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, 2005.; Alvera-Azcárate, A., Barth, A., Beckers, J.-M., and Weisberg, R. H.: Multivariate reconstruction of missing data in sea surface temperature, c...

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The recent progress of astronomy, especially in the United States

By: Loomis, Elias, 1811-1889
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Magazin Für Das Neueste Aus Der Physik Und Naturgeschichte

By: Voigt, Johann Heinrich, 1751-1823, Ed

Description: Edited 1781-1785 by [G.C.] Lichtenberg; 1786-1799 by [J.H.] Voigt

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The Elements of Theoretical and Descriptive Astronomy, for the Use...

By: White, Charles Joyce, 1839-1917
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Co-existence of Wind Seas and Swells Along the West Coast of India...

By: V. M. Aboobacker; P. Vethamony; R. Rashmi; M. P. John

Description: National Institute of Oceanography (CSIR), Dona Paula, Goa, India. Wave data collected along the west coast of India (off Goa, Ratnagiri and Dwarka) during non-monsoon season have been analysed to study the co-existence of wind seas and swells. Diurnal variation in wind and wave parameters is noticeable along the central west coast of India (off Goa and Ratnagiri), and this is not present along the northwest coast of India (off Dwarka). Swells are pr...

Aboobacker, V. M., Vethamony, P., and Rashmi, R.: Shamal swells in the Arabian Sea and their influence along the west coast of India, Geophys. Res. Lett., 38, L03608, doi:10.1029/2010GL045736, 2011a.; Aboobacker, V. M., Rashmi, R., Vethamony, P., and Menon, H. B.: On the dominance of pre-existing swells over wind seas along the west coast of India, Cont. Shelf Res., 31, 1701–1712, 2011b.; Aparna, M., Shetye, S. R., Shank...

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Bulletin - New York State Museum

By: New York State Museum

Description: No. 52-79, Bulletin of the University of the state of New York; no. 80-118, Bulletin of the New York State Education Dept

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