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This digital document is an article from Epoca, published by Difusora de Informacion Periodica, S.A. (DINPESA) on August 9, 1999. The length of the article is 2086 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.

Citation Details
Title: El último eclipse del siglo.(astronomía; investigaciones científicas; España)(TT: The last eclipse of the century.)(TA: astronomy; research; Spain)
Author: Ana Del Paso
Publication: Epoca (Magazine/Journal)
Date: August 9, 1999
Publisher: Difusora de Informacion Periodica, S.A. (DINPESA)
Page: 28

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This ringbound book and DVD-ROM provides the ultimate, comprehensive guide to one of America's top research organizations, the Naval Research Laboratory (NRL). NRL has been involved in many historic scientific achievements, including gamma-ray radiography, radar, radio propagation, nuclear subs, the liquid thermal diffusion process, solar spectrum, lubricants, detection of solar x-rays, fracture testing, Vanguard rockets and satellite, over-the-horizon radar, operational intelligence satellites, nuclear reactor safety, deep ocean search, GPS, lasers, holography, gyroscopes, the lunar Clementine satellite, and more. ... Read more

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The 33 papers presented in this volume represent the state-of-the-art research in relation to gamma ray astronomy. Results obtained from both COMPTEL and SIGMA telescopes are recorded. ... Read more

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This supplement contains observation and research projects authored by Steve McMillan, as well as projects for the Starry Night ProTMplanetarium software by Erin O'Connor (Santa Barbara City College). ... Read more

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Most people are familiar with NASA and the Soviet and then Russian space programs, but how many people have heard of the Austrian Space Agency? Space Ireland? SUPARCO of Pakistan? Space exploration and space-related scientific applications, far from being the province of the superpowers, are a worldwide effort and are developing in some seemingly unlikely places. Forty-two countries or groups of countries, besides the United States, have or have had active space programs.

This near-comprehensive (American agencies, well documented elsewhere, are omitted) history of the worlds space programs is full of detailed information. The heavily illustrated chapters, arranged alphabetically, describe each country's facilities; launch vehicles, rockets and satellites; major areas of research; and more. ... Read more

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This Elibron Classics book is a facsimile reprint of a 1808 edition published in London. ... Read more

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This 22nd volume in the series contains 15 invited reviews and highlight contributions from outstanding speakers presented during the 2009 annual meeting of the Astronomical Society on the subject of "Deciphering the Universe through Spectroscopy", held in Potsdam, Germany.
Topics range from the measurements of magnetic fields on the surface of the sun via detailed measurements of abundances in stellar atmospheres to the kinematics of the universe at its largest scales.
The result is a systematic overview of the latest astronomical and cosmological research.
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Driven by discoveries, and enabled by leaps in technology and imagination, our understanding of the universe has changed dramatically over the course of the last few decades. The fields of astronomy and astrophysics are making new connections to physics, chemistry, biology, and computer science. Based on a broad and comprehensive survey of scientific opportunities, infrastructure, and organization in a national and international context, New Worlds, New Horizons in Astronomy and Astrophysics outlines a plan for ground- and space- based astronomy and astrophysics for the decade of the 2010's.

Realizing these scientific opportunities is contingent upon maintaining and strengthening the foundations of the research enterprise including technological development, theory, computation and data handling, laboratory experiments, and human resources. New Worlds, New Horizons in Astronomy and Astrophysics proposes enhancing innovative but moderate-cost programs in space and on the ground that will enable the community to respond rapidly and flexibly to new scientific discoveries. The book recommends beginning construction on survey telescopes in space and on the ground to investigate the nature of dark energy, as well as the next generation of large ground-based giant optical telescopes and a new class of space-based gravitational observatory to observe the merging of distant black holes and precisely test theories of gravity.

New Worlds, New Horizons in Astronomy and Astrophysics recommends a balanced and executable program that will support research surrounding the most profound questions about the cosmos. The discoveries ahead will facilitate the search for habitable planets, shed light on dark energy and dark matter, and aid our understanding of the history of the universe and how the earliest stars and galaxies formed. The book is a useful resource for agencies supporting the field of astronomy and astrophysics, the Congressional committees with jurisdiction over those agencies, the scientific community, and the public.
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It is generally believed that most of the matter in the universe is dark, i.e. cannot be detected from the light which it emits (or fails to emit). Its presence is inferred indirectly from the motions of astronomical objects, specifically stellar, galactic, and galaxy cluster/supercluster observations. It is also required in order to enable gravity to amplify the small fluctuations in the cosmic microwave background enough to form the large-scale structures that we see in the universe today. For each of the stellar, galactic, and galaxy cluster/supercluster observations the basic principle is that if we measure velocities in some region, then there has to be enough mass there for gravity to stop all the objects flying apart. Dark matter has important consequences for the evolution of the universe and the structure within it. According to general relativity, the universe must conform to one of three possible types: open, flat, or closed. The total amount of mass and energy in the universe determines which of the three possibilities applies to the universe. In the case of an open universe, the total mass and energy density (denoted by the Greek letter U) is less than unity.If the universe is closed, U is greater than unity. For the case where U is exactly equal to one the universe is 'flat'. This new book details leading-edge research from around the globe. ... Read more

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This symposium was the first in a series of meetings devoted to the science of the Gamma-ray Large Area Space Telescope (GLAST), yet it was also a successor of the five remarkable Compton Symposia and subsequent Gamma2001 meeting. The GLAST Symposia provide an essential forum for exchange of ideas and information across a broad range of scientific investigations. GLAST, NASA's new gamma-ray observatory to be launched within the next year, will open a wide new window on the universe. Gamma rays are the highest-energy form of electromagnetic radiation, and the gamma-ray sky is spectacularly different from what we perceive with our own eyes. With a huge leap in all key capabilities, GLAST data will enable scientists to answer persistent questions across a broad range of topics, including supermassive black hole systems, pulsars, gamma-ray bursts, the origin of cosmic rays, and searches for signals of new physics. An astro-particle physics partnership, GLAST was developed in collaboration with the U.S. Department of Energy, along with important contributions from France, Germany, Italy, Japan, and Sweden. More information can be found at http://glast.gsfc.nasa.gov/ and at links therein.

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Pulsars are stars, a significant part of whose observed energy output is not continuous but is emitted as distinct flashes or pulses of electromagnetic radiation. Many pulsars also emit some radiation weakly and constantly, forming a background for the more intensive pulses. Three distinct classes of pulsars are presently known to astronomers, according to the source of energy that powers the radiation: Rotation-powered pulsars, where the loss of rotational energy of the star powers; the radiation X-ray pulsars, where the gravitational potential energy of accreted matter is the energy source, and Magnetars, where the decay of an extremely strong magnetic field powers the radiation. Although all three classes of objects are neutron stars, their observable behaviour and the underlying physics are quite different. There are, however, connections. For example, X-ray pulsars are probably old rotation-powered pulsars that have already lost most of their energy, and have only become visible again after their binary companions expanded and began transferring matter on to the neutron star.The process of accretion can in turn transfer enough angular momentum to the neutron star to "recycle" it as a rotation-powered millisecond pulsar. ... Read more