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Books > Science & Mathematics > Astronomy, space & time

VLBI and Compact Radio Sources (Hardcover, 1984 ed.): Roberto Fanti, K. Kellerman, G. Setti VLBI and Compact Radio Sources (Hardcover, 1984 ed.)
Roberto Fanti, K. Kellerman, G. Setti
R5,420 Discovery Miles 54 200 Ships in 18 - 22 working days

I.A.U. symposium No. 110 on VLBI and Compact Radio Sources was held in Bologna, Italy from June 27 to July 1, 1983. 166 participants from 19 countries were registered and 106 invited and contributed papers were registered. The scientific presentations and discussion concentrated on VLBI observation and interpretation of galactic and extragalactic radio sour ces, including topics as diverse as quasars and galactic nuclei, inter stellar masers, pulsars, and astrometry. Geodetic applications and tech nical development were treated only briefly, as these topics have been the subject of other recent international symposia. Since the first VLBI observations in 1967, sensitivity, resolution, and image quality have improved dramatically. Radio maps shown at the symposium were of comparable quality to conventional synthesis maps be ing made at the time of the first VLBI experiments 15 years ago, but with a resolution more than a factor of 1000 better. We wanted to accommodate the large number of contributed papers in this rapidly developing field, but there was inadequate time for normal oral presentations and discussion. We therefore asked that all contrib uted papers be put on display for at least 24 hours prior to a brief oral summary. A question and discussion period followed groups of oral pres entations on the same or similar topic. In this way the opportunity for interactive discussion, not available in conventional poster displays, was preserved."

Physics of the Earth and the Solar System - Dynamics and Evolution, Space Navigation, Space-Time Structure (Hardcover, 1990... Physics of the Earth and the Solar System - Dynamics and Evolution, Space Navigation, Space-Time Structure (Hardcover, 1990 ed.)
B. Bertotti, Paolo Farinella
R5,411 Discovery Miles 54 110 Ships in 18 - 22 working days

From the reviews:

.."...The book is a very good balance between theory and applications, of analysis and synthesis, keeping always the focus on the comprehension of the physics ruling our planetary system.

In summary, this represents both an excellent textbook for students and a fundamental reference, and encyclopedic summary current knowledge, for researchers in the Solar System field." (Alessandro Rossi, Celestial Mechanics and Dynamical Astronomy, 2005)

Cores to Clusters - Star Formation with Next Generation Telescopes (Hardcover, 2005 ed.): M. S. Nanda Kumar, M. Tafalla, P.... Cores to Clusters - Star Formation with Next Generation Telescopes (Hardcover, 2005 ed.)
M. S. Nanda Kumar, M. Tafalla, P. Caselli
R5,155 Discovery Miles 51 550 Ships in 18 - 22 working days

It was with pleasure that CAUP became for three days the core to the cloud of star formation experts all over the world. Close to the celebration of its 15th anniversary - therefore still in the early stages of institutional evolution - we are proud of our multiple activities in Astronomy: a productive research centre, classi?ed as "Institution of excellence" within the Portuguese research units, but also an "Institution of Public Utility" as recognised by the Government. Fifteen years ago we choose to play a role not only in research, as expected from any research centre but also in the training of the future astronomers and the promotion of science and scienti?c culture. This choice is clearly stated in our by-laws and also in the multiple activities we have carried out since. Along the years we have organized on a regular basis international Workshops similar to "Cores to Clusters." Sometimes we have chosen to organize int- national conferences of a larger size. On other occasions the choice has been for smaller and more informal discussion meetings. Or even doctoral schools with very different objectives. In common all those meetings have always had, besides the formal registered participants, a group of informal participants, our undergraduate students of Astronomy, so eager to be in touch with the real world.

Particle Acceleration and Kinematics in Solar Flares (Hardcover, Reprinted from SPACE SCIENCE REVIEWS, 101:1-2, 2002): Markus... Particle Acceleration and Kinematics in Solar Flares (Hardcover, Reprinted from SPACE SCIENCE REVIEWS, 101:1-2, 2002)
Markus Aschwanden
R2,673 Discovery Miles 26 730 Ships in 18 - 22 working days

Over the last decade we entered a new exploration phase of solar flare physics, equipped with powerful spacecraft such as Yohkoh, SoHO, and TRACE that pro vide us detail-rich and high-resolution images of solar flares in soft X-rays, hard X -rays, and extreme-ultraviolet wavelengths. Moreover, the large-area and high sensitivity detectors on the Compton GRO spacecraft recorded an unprecedented number of high-energy photons from solar flares that surpasses all detected high energy sources taken together from the rest of the universe, for which CGRO was mainly designed to explore. However, morphological descriptions of these beau tiful pictures and statistical catalogs of these huge archives of solar data would not convey us much understanding of the underlying physics, if we would not set out to quantify physical parameters from these data and would not subject these measurements to theoretical models. Historically, there has always been an unsatisfactory gap between traditional astronomy that dutifully describes the mor phology of observations, and the newer approach of astrophysics, which starts with physical concepts from first principles and analyzes astronomical data with the goal to confirm or disprove theoretical models. In this review we attempt to bridge this yawning gap and aim to present the recent developments in solar flare high-energy physics from a physical point of view, structuring the observations and analysis results according to physical processes, such as particle acceleration, propagation, energy loss, kinematics, and radiation signatures.

The Sun: New Challenges - Proceedings of Symposium 3 of JENAM 2011 (Hardcover, 2012 ed.): Vladimir N. Obridko, Katya Georgieva,... The Sun: New Challenges - Proceedings of Symposium 3 of JENAM 2011 (Hardcover, 2012 ed.)
Vladimir N. Obridko, Katya Georgieva, Yury A. Nagovitsyn
R4,027 Discovery Miles 40 270 Ships in 18 - 22 working days

These are the proceedings of the Symposium 3 of JENAM 2011 on new scientific challenges posed by the Sun. The topics covered are

1. The unusual sunspot minimum, which poses challenges to the solar dynamo theory

2. The Sun's Terra-Hertz emission, which opens a new observational window

3. Corona wave activity

4. Space weather agents - initiation, propagation, and forecasting

In 21 in-depth contributions, the reader will be presented with the latest findings."

The New Science of Astrobiology - From Genesis of the Living Cell to Evolution of Intelligent Behaviour in the Universe... The New Science of Astrobiology - From Genesis of the Living Cell to Evolution of Intelligent Behaviour in the Universe (Hardcover, 2001 ed.)
Julian Chela-Flores
R2,688 Discovery Miles 26 880 Ships in 18 - 22 working days

Astrobiology is a very broad interdisciplinary field covering the origin, evolution, distribution, and destiny of life in the universe, as well as the design and implementation of missions for solar system exploration. A review covering its complete spectrum has been missing at a level accessible even to the non-specialist.
The last section of the book consists of a supplement, including a glossary, notes, and tables, which represent highly condensed windows' into research ranging from basic sciences to earth and life sciences, as well as the humanities.
These additions should make The New Science of Astrobiology accessible to a wide readership: scientists, humanists, and the general reader will have an opportunity to participate in one of the most rewarding activities of contemporary culture.

Whatever Shines Should be Observed - [quicquid nitet notandum] (Hardcover, New ed): Susan M.P. McKenna-Lawlor Whatever Shines Should be Observed - [quicquid nitet notandum] (Hardcover, New ed)
Susan M.P. McKenna-Lawlor
R2,655 Discovery Miles 26 550 Ships in 18 - 22 working days

It is good to mark the new Millennium by looking back as well as forward. Whatever Shines Should Be Observed looks to the nineteenth century to celebrate the achievements of five distinguished women, four of whom were born in Ireland while the fifth married into an Irish family, who made pioneering contributions to photography, microscopy, astronomy and astrophysics.

The women featured came from either aristocratic or professional families. Thus, at first sight, they had many material advantages among their peers. In the ranks of the aristocracy there was often a great passion for learning, and the mansions in which these families lived contained libraries, technical equipment (microscopes and telescopes) and collections from the world of nature. More modest professional households of the time were rich in books, while activities such as observing the stars, collecting plants etc. typically formed an integral part of the children's education.

To balance this it was the prevailing philosophy that boys could learn, in addition to basic subjects, mathematics, mechanics, physics, chemistry and classical languages, while girls were channelled into 'polite' subjects like music and needlework. This arrangement allowed boys to progress to University should they so wish, where a range of interesting career choices (including science and engineering) was open to them. Girls, on the other hand, usually received their education at home, often under the tutelage of a governess who would not herself had had any serious contact with scientific or technical subjects. In particular, progress to University was not during most of the nineteenth century an option for women, and access toscientific libraries and institutions was also prohibited.

Although those women with aristocratic and professional backgrounds were in a materially privileged position and had an opportunity to 'see' through the activities of their male friends and relatives how professional scientific life was lived, to progress from their places in society to the professions required very special determination. Firstly, they had to individually acquire scientific and technical knowledge, as well as necessary laboratory methodology, without the advantage of formal training. Then, it was necessary to carve out a niche in a particular field, despite the special difficulties attending the publication of scientific books or articles by a woman. There was no easy road to science, or even any well worn track. To achieve recognition was a pioneering activity without discernible ground rules.

With the hindsight of history, we recognise that the heroic efforts which the women featured in this volume made to overcome the social constraints that held them back from learning about, and participating in, scientific and technical subjects, had a consequence on a much broader canvas. In addition to what they each achieved professionally they contributed within society to a gradual erosion of those barriers raised against the participation of women in academic life, thereby assisting in allowing University places and professional opportunities to gradually become generally available. It is a privilege to salute and thank the wonderful women of the nineteenth century herein described for what they have contributed to the women of today. William Herschel's famous motto quicquid nitet notandum (whatever shinesshould be observed) applies in a particular way to the luminous quality of their individual lives, and those of us who presently observe their shining, as well as those who now wait in the wings of the coming centuries to emerge upon the scene, can each see a little further by their light.

Observational Imprints of Binary Evolution on B- and Be-star Populations (Hardcover, 1st ed. 2022): Julia Bodensteiner Observational Imprints of Binary Evolution on B- and Be-star Populations (Hardcover, 1st ed. 2022)
Julia Bodensteiner
R3,321 Discovery Miles 33 210 Ships in 18 - 22 working days

This book presents novel observational evidence toward detecting and characterizing the products of massive, interacting binary stars. As a majority of massive stars are born in close binary systems, a large number of so-called massive binary interaction products are predicted to exist; however, few have been identified so far. Based on observations with the largest telescopes around the world, equipped with state-of-the-art instrumentation, this book helps to remedy this situation. In her outstanding PhD-thesis Julia Bodensteiner identifies a new class of post-interaction binaries in a short-lived phase just briefly after the initially more massive star has been stripped of part of its envelope. She further provides new evidence for the Be phenomenon to largely result from binary interactions. These results represented a new and testable prediction for the evolution of these stars and opened up a new way forward for identifying hundreds of post-interaction products. Finally, using the MUSE integral field spectrograph at the Very Large Telescope in Chile, the author presents a novel spectroscopic campaign focusing on the 40 Myr-old star cluster NGC 330 in the Small Magellanic Clouds. Combined with photometric observations from the Hubble Space Telescope, the MUSE data allow to characterize the entire massive star population of NGC 330, revealing their multiplicity properties and rotational velocities and providing unique observational constraints on their (binary) evolution history. This is made possible by the developments of novel numerical methods allowing to extract star spectra from the MUSE integral field spectroscopic data and to characterize their properties by the simultaneous comparison of MUSE spectroscopy and Hubble photometry with atmospheric models. This book is a partly re-written version of the author's thesis offering a highly readable coherent text presenting not only new insights into the properties of binary interaction products but also giving students an excellent introduction into the field.

The Science of Time 2016 - Time in Astronomy & Society, Past, Present and Future (Hardcover, 1st ed. 2017): Elisa Felicitas... The Science of Time 2016 - Time in Astronomy & Society, Past, Present and Future (Hardcover, 1st ed. 2017)
Elisa Felicitas Arias, Ludwig Combrinck, Pavel Gabor, Catherine Hohenkerk, P.Kenneth Seidelmann
R7,061 Discovery Miles 70 610 Ships in 10 - 15 working days

The uses of time in astronomy - from pointing telescopes, coordinating and processing observations, predicting ephemerides, cultures, religious practices, history, businesses, determining Earth orientation, analyzing time-series data and in many other ways - represent a broad sample of how time is used throughout human society and in space. Time and its reciprocal, frequency, is the most accurately measurable quantity and often an important path to the frontiers of science. But the future of timekeeping is changing with the development of optical frequency standards and the resulting challenges of distributing time at ever higher precision, with the possibility of timescales based on pulsars, and with the inclusion of higher-order relativistic effects. The definition of the second will likely be changed before the end of this decade, and its realization will increase in accuracy; the definition of the day is no longer obvious. The variability of the Earth's rotation presents challenges of understanding and prediction. In this symposium speakers took a closer look at time in astronomy, other sciences, cultures, and business as a defining element of modern civilization. The symposium aimed to set the stage for future timekeeping standards, infrastructure, and engineering best practices for astronomers and the broader society. At the same time the program was cognizant of the rich history from Harrison's chronometer to today's atomic clocks and pulsar observations. The theoreticians and engineers of time were brought together with the educators and historians of science, enriching the understanding of time among both experts and the public.

Galaxies and their Masks - A Conference in Honour of K.C. Freeman, FRS (Hardcover, Edition.): David L. Block, Kenneth C.... Galaxies and their Masks - A Conference in Honour of K.C. Freeman, FRS (Hardcover, Edition.)
David L. Block, Kenneth C. Freeman, Ivanio Puerari
R5,230 Discovery Miles 52 300 Ships in 18 - 22 working days

The year: 1660. The date: November 28. Present: The Lord Brouncker, Mr Boyle, Mr Bruce, Sir Robert Moray, Sir Paule Neile, Dr Wilkins, Dr Goddard, Dr Petty, Mr Ball, Mr Hooke, Mr Wren, and Mr Hill. Occasion: A lecture by Mr Wren at Gresham College, United Kingdom. AfterChristopherWrenhaddeliveredhislectureatGreshamCollegeonthathistoric occasion in November 1660, "they did according to the usual manner, withdraw for mutual converse." It was in 1660 that the Royal Society was founded, with 12 persons present. This year, 2010, is thus a special year for scientists worldwide: it celebrates the 350th anniversary of the founding of the Royal Society, whose current President is Martin Rees. One of the enormous challenges facing scientists in the 1600s was the great need fortheclassi cationofobjectstheywerestudying,particularlyinthe eldofbotany. The seeds for classi cation lie in the works of the British naturalist John Ray (1628-1705), who commencing in 1660 with hisCatalogusplantarumcirca Cantabrigiamnascentium (Catalogue of Cambridge Plants) - published in the year in which the Royal Society was founded - and ending with the posthumous publi- tion ofSynopsisMethodicaAviumetPiscium in 1713, pioneered systematic studies on plants, birds, mammals, sh, and insects.

Relativistic Astrophysics and Cosmology - A Primer (Hardcover, 2006 ed.): Peter Hoyng Relativistic Astrophysics and Cosmology - A Primer (Hardcover, 2006 ed.)
Peter Hoyng
R1,450 Discovery Miles 14 500 Ships in 18 - 22 working days

Relativistic Astrophysics and Cosmology offers a succinct and self-contained treatment of general relativity and its application to compact objects, gravitational waves and cosmology. The required mathematical concepts are introduced informally, following geometrical intuition as much as possible. The approach is theoretical, but there is ample discussion of observational aspects and of instrumental issues where appropriate.

The book includes such topical issues as the Gravity Probe B mission, interferometer detectors of gravitational waves, and the physics behind the angular power spectrum of the cosmic microwave background (CMB). Written for advanced undergraduates and beginning graduate students in (astro)physics, it is ideally suited for a lecture course and contains 140 exercises with extensive hints. The reader is assumed to be familiar with linear algebra and analysis, ordinary differential equations, special relativity, and basic thermal physics.

Frontiers in Particle Physics - Cergese 1994 (Hardcover, 1995 ed.): Jean-Marc Gerard, Raymond Gastmans, Jean Iliopoulos, M. Levy Frontiers in Particle Physics - Cergese 1994 (Hardcover, 1995 ed.)
Jean-Marc Gerard, Raymond Gastmans, Jean Iliopoulos, M. Levy
R5,505 Discovery Miles 55 050 Ships in 18 - 22 working days

The 1994 Cargese Summer Institute on Frontiers in Partide Physics was organized by the Universite Pierre et Marie Curie, Paris (M. Levy), the Ecole Normale Superieure, Paris (J. Iliopoulos), the Katholieke Universiteit Leuven (R. Gastmans), and the Uni- versite Catholique de Louvain (J. -M. Gerard), which, since 1975, have joined their efforts and worked in common. It was the eleventh Summer Institute on High Energy Physics organized jointly at Cargese by three of these universities. Severa! new frontiers in partide physics were thoroughly discussed at this school. the new euergy range in deep-iuelastic electron-proton scattering is beiug In particular, explored by HERA (DESY, Hamburg), and Professor A. De Roeck described the first results from the H1 and Zeus experiments, while Professors A. H. Mueller aud Z. Kuuszt discussed their relevance from the theoretical point of view. Also, the satellite exper- iments offer new possibilities for exploring the links between astrophysics, cosmology, and partide physics. A critica] a. nalysis of these experiments was performed by Pro- fessor B. Sadoulet, and Professor M. Spiro made the connection with the results from earth-based neutrino experiments. Finally, much attentiou was giveu to the latest re- sults from the TEVATRON (Fermilab, USA), showing further evidence for the loug awaited top quark. Professor A. Tollestrup gave a detailed presentation of these results aud discussed their importance for the Standard Model.

99 New Discoveries in Astronomy (Hardcover): P.J. Tomlin 99 New Discoveries in Astronomy (Hardcover)
P.J. Tomlin
R689 Discovery Miles 6 890 Ships in 10 - 15 working days

This book presents what are possibly the greatest advances in astronomy and physics for years. It quantifies the force responsible for the expansion of the universe and describes its source. It identifies the greatest destructive mechanism in the universe. The enigmas behind the Hubble constant were resolved and this led to all the discoveries. The mysteries behind dark matter and dark energy are solved. The cause of all solar energy, including gravitational and radiant energy is identified. Surprisingly hydrogen fusion is found to be responsible for the sun's remarkable prolonged stability, but it is an impossible source of surplus energy. The most unexpected finding was that time has an unusual property, one that is responsible for much of the behaviour of the universe. Also uncovered was an inverse relationship between time and mass. Another finding was the greatest catastrophe to befall the earth with after effects that we still feel today, such as shifting plate tectonics, tsunamis and earthquakes, and why the Pacific Ocean is so deep. That catastrophe led to Snowball Earth. But it also eventually caused the oxygenation of earth's atmosphere and the emergence of life. Also found were why Jupiter is so hot compared with its surroundings and what drives its equatorial storms. Another discovery was the mechanism responsible for Saturn's marvellous ring system. Also identified within that ring system was the physics behind the most spectacular sight in the solar system. But there are many other discoveries, such as that the theory of the Big Bang must be wrong, the quantification of gravitational energy and so on. This book should do to Astronomy what Darwin's book The Origin of Species did to biology.

Neutrino Astrophysics with the ANTARES Telescope (Hardcover, 2015 ed.): Vladimir Kulikovskiy Neutrino Astrophysics with the ANTARES Telescope (Hardcover, 2015 ed.)
Vladimir Kulikovskiy
R3,172 Discovery Miles 31 720 Ships in 18 - 22 working days

This thesis is devoted to ANTARES, the first underwater neutrino telescope in the Mediterranean sea. As the main scientific analysis, a search for high-energy neutrino emission from the region of the Fermi bubbles has been performed using data from the ANTARES detector. A method for the background estimation using off-zones has been developed specially for this measurement. A new likelihood for the limits calculation which treats both observations in the on-zone and in the off-zone in the similar way and also includes different systematic uncertainties has been constructed. The analysis of 2008-2011 ANTARES data yielded a 1.2 excess of events in the Fermi bubble regions, compatible with the no-signal hypothesis. For the optimistic case of no energy cutoff in the flux, the upper limit is within a factor of three of the prediction of the purely hadronic model based on the measured gamma-ray flux. The sensitivity improves as more data are accumulated (more than 65% gain in the sensitivity is expected once 2012-2016 data are added to the analysis).

The Last Stargazers - The Enduring Story of Astronomy's Vanishing Explorers (Paperback): Emily Levesque The Last Stargazers - The Enduring Story of Astronomy's Vanishing Explorers (Paperback)
Emily Levesque
R346 R315 Discovery Miles 3 150 Save R31 (9%) Ships in 9 - 17 working days

SHORTLISTED FOR THE ROYAL SOCIETY SCIENCE BOOK PRIZE 2021 FINALIST FOR THE PEN/E.O. WILSON LITERARY SCIENCE WRITING AWARD AN AMAZON BEST BOOK OF 2020 To be an astronomer is to journey to some of the most inaccessible parts of the globe, braving mountain passes, sub-zero temperatures, and hostile flora and fauna. Not to mention the stress of handling equipment worth millions. It is a life of unique delights and absurdities ... and one that may be drawing to a close. Since Galileo first pointed his telescope at the heavens, astronomy has stood as a fount of human creativity and discovery, but soon it will be the robots gazing at the sky while we are left to sift through the data. In The Last Stargazers, Emily Levesque reveals the hidden world of the professional astronomer. She celebrates an era of ingenuity and curiosity, and asks us to think twice before we cast aside our sense of wonder at the universe.

Rediscovering the Integral Cosmos - Physics, Metaphysics, and Vertical Causality (Hardcover): Jean Borella, Wolfgang Smith Rediscovering the Integral Cosmos - Physics, Metaphysics, and Vertical Causality (Hardcover)
Jean Borella, Wolfgang Smith; Introduction by Bruno Berard
R710 Discovery Miles 7 100 Ships in 18 - 22 working days
Instrumentation for Combustion and Flow in Engines (Hardcover, 1989 ed.): D.F.G. Durao, J.H. Whitelaw, P.O. Witze Instrumentation for Combustion and Flow in Engines (Hardcover, 1989 ed.)
D.F.G. Durao, J.H. Whitelaw, P.O. Witze
R5,360 Discovery Miles 53 600 Ships in 18 - 22 working days

Much has been said and written about the abilities of modern instrumentation to help solve problems of combustion in engines. In the main, however, the design and fabr ication of combustion chambers continues to be based on extrapolation of exper ience gained from use and rig tests, with little input from advanced techniques such as those based on optical diagnotics. At the same time, it has become increasingly difficult to design better combustion chambers without knowledge of the relevant flow processes. Thus, the future must involve improved understanding which, in turn, will require detailed measurements of velocity, temperature and concentration. The need to narrow the gap between current industrial practice and the acquisition and implementation of improved techniques motivated the organization of the Advanced Study Institute upon which this volume is based. This Institute on Instrumentation for Combustion and Flow in Engines was arranged to display the needs of industry and the possibilities made available by modern instrumentation and, at the same time, to make clear the relative advantages of optical and probe techniques. Held at Vimeiro during the period from 13 to 26 September, 1987, the Institute was attended by 120 participants and 16 invited lecturers.

Cataclysmic Variables. Recent Multi-Frequency Observations and Theoretical Developments - Proceedings of IAU Colloquium No. 93,... Cataclysmic Variables. Recent Multi-Frequency Observations and Theoretical Developments - Proceedings of IAU Colloquium No. 93, held in Bamberg, F.R.G., June 16-19, 1986 (Hardcover, 1987 ed.)
H. Drechsel, Y. Kondo, Jurgen H. Rahe
R5,592 Discovery Miles 55 920 Ships in 18 - 22 working days

Recent advances in observational and theoretical efforts in understanding the nature of cataclysmic variables had reached such maturity that there existed a strong, shared feeling among the workers in this field that an international colloquium sponsored by the International Astronomical Union would be timely. To be more specific, this was due primarily to the accumulation of the new data from satellite observatories, such as the International Ultraviolet Observatory (IUE) and EXOSAT, as well as ground-based optical and radio telescopes, and the advances in modeling the putative accretion disks and the thermo-nuclear run-away phenomena in the vinicity of the white dwarf stars in cataclysmic variables. A series of workshops on this subject held in North America over the past several years and that held in Europe in 1985 had all contributed to the advances in our knowledge that led to IAU Colloguium No. 93, held in Bamberg from the 16th to 19th of June 1986. In all, 157 astronomers from 27 countries participated in this conference. Judging from the papers presented, both invited and contributed, and from the enthusiasm seen in discussions, the meeting was indeed a success.

The Janus Point - A New Theory of Time (Hardcover): Julian Barbour The Janus Point - A New Theory of Time (Hardcover)
Julian Barbour
R769 Discovery Miles 7 690 Ships in 10 - 15 working days

In a universe filled by chaos and disorder, one physicist makes the radical argument that the growth of order drives the passage of time -- and shapes the destiny of the universe. Time is among the universe's greatest mysteries. Why, when most laws of physics allow for it to flow forward and backward, does it only go forward? Physicists have long appealed to the second law of thermodynamics, held to predict the increase of disorder in the universe, to explain this. In The Janus Point, physicist Julian Barbour argues that the second law has been misapplied and that the growth of order determines how we experience time. In his view, the big bang becomes the "Janus point," a moment of minimal order from which time could flow, and order increase, in two directions. The Janus Point has remarkable implications: while most physicists predict that the universe will become mired in disorder, Barbour sees the possibility that order -- the stuff of life -- can grow without bound. A major new work of physics, The Janus Point will transform our understanding of the nature of existence.

Evolutionary Processes in Interacting Binary Stars - Proceedings of the 151st Symposium of the International Astronomical... Evolutionary Processes in Interacting Binary Stars - Proceedings of the 151st Symposium of the International Astronomical Union, Held in Cordoba, Argentina, August 5-9, 1991 (Hardcover, 1992 ed.)
Y. Kondo, R.F. Sistero, R.S. Polidan
R7,934 Discovery Miles 79 340 Ships in 18 - 22 working days

This book contains the proceedings of IAU Symposium No. 151 Evolutionary Processes in Interacting Binary Stars, ' which was held from 5 to 9 August 1991 in Cord ba, Argentina. The primary aim of this conference was to review and evaluate our current understanding of the evolutionary processes in wide variety of interacting binary stars from their births to their deaths. Subjects included the formation of binaries, mass flow and transfer, accretion processes, and binaries with collapsed components, such as novae, X-ray binaries and binary pulsars. As the field covered is both broad and diverse, there were in all thirty-seven invited talks; sixty-two contributed papers were also presented. In addition, these proceedings contain comments from a panel discussion of the major unsolved problems of interacting binary stars.

The Origin of the Universe Understanding the Universe Astronomy Book Science Grade 8 Children's Astronomy & Space Books... The Origin of the Universe Understanding the Universe Astronomy Book Science Grade 8 Children's Astronomy & Space Books (Hardcover)
Baby Professor
R690 R614 Discovery Miles 6 140 Save R76 (11%) Ships in 18 - 22 working days
Christ and the Multiverse - Following Jesus in Our Wild, Infinite Creation (Hardcover): David Williams Christ and the Multiverse - Following Jesus in Our Wild, Infinite Creation (Hardcover)
David Williams
R646 R580 Discovery Miles 5 800 Save R66 (10%) Ships in 18 - 22 working days
Reports on Astronomy (Hardcover, 1976 ed.): G. Contopoulos Reports on Astronomy (Hardcover, 1976 ed.)
G. Contopoulos
R4,171 Discovery Miles 41 710 Ships in 18 - 22 working days
Observation of the Earth System from Space (Hardcover, 2006 ed.): Jakob Flury, Reiner Rummel, Christoph Reigber, Markus... Observation of the Earth System from Space (Hardcover, 2006 ed.)
Jakob Flury, Reiner Rummel, Christoph Reigber, Markus Rothacher, Gerd Boedecker, …
R5,245 Discovery Miles 52 450 Ships in 18 - 22 working days

In the recent years, space-based observation methods have led to a subst- tially improved understanding of Earth system. Geodesy and geophysics are contributing to this development by measuring the temporal and spatial va- ations of the Earth's shape, gravity ?eld, and magnetic ?eld, as well as at- sphere density. In the frame of the GermanR&D programmeGEOTECHNO- LOGIEN,researchprojectshavebeen launchedin2002relatedto the satellite missions CHAMP, GRACE and ESA's planned mission GOCE, to comp- mentary terrestrial and airborne sensor systems and to consistent and stable high-precision global reference systems for satellite and other techniques. In the initial 3-year phase of the research programme (2002-2004), new gravity ?eld models have been computed from CHAMP and GRACE data which outperform previous models in accuracy by up to two orders of m- nitude for the long and medium wavelengths. A special highlight is the - termination of seasonal gravity variations caused by changes in continental water masses. For GOCE, to be launched in 2006, new gravity ?eld analysis methods are under development and integrated into the ESA processing s- tem. 200,000 GPS radio occultation pro?les, observed by CHAMP, have been processed on an operational basis. They represent new and excellent inf- mation on atmospheric refractivity, temperature and water vapor. These new developments require geodetic space techniques (such as VLBI, SLR, LLR, GPS) to be combined and synchronized as if being one global instrument.

The Diffuse Interstellar Bands (Hardcover, 1995 ed.): A.G.G.M. Tielens, TP Snow The Diffuse Interstellar Bands (Hardcover, 1995 ed.)
A.G.G.M. Tielens, TP Snow
R5,373 Discovery Miles 53 730 Ships in 18 - 22 working days

The mystery of the diffuse interstellar bands has been variously a curiosity, a co nundrum, and a nuisance for astronomers in the seven decades since the features were first noticed, but recently they have become a forefront issue in astrophysics. Ever since Paul Merrill, in a series of papers starting in 1934, pointed out the interstellar and unidentified nature of the bands, a Who's Who of twentieth century astronomers have tried their hands at solving the problem of identifying the carriers. Henry Norris Russell, Pol Swings, Otto Struve, Paul Ledoux, W. W. Morgan, Walter Adams, Jesse Greenstein, Lawrence Aller, and Gerhard Herzberg all briefly entered the stage, only to move on quickly to other problems where the chances for progress appeared more realistic. In more recent times a number of equally prominent scientists have pursued the bands, but generally only as a sideline to their real astronomical research. But in the past decade, and particularly in the past three years, the view of the search for the diffuse band absorbers as an interesting but perhaps quixotic quest has changed. Today there are several astronomers, as well as laboratory chemists, who are devoting substantial research time and resources to the problem and, as perhaps the most reliable indicator of the newly elevated status of research in this field, some research grants have now been awarded for the study of the bands."

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