Download or read book The Variable Universe written by Krzysztof Zbigniew Stanek and published by . This book was released on 2009 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: A symposium to celebrate the life of Bohdan Paczynski (1940-2007), Lyman Spitzer Jr. Professor of Theoretical Astrophysics at Princeton University, took place on 29-30 September 2007. Bohdan Paczynski impacted astronomy and astronomers alike with his innovative ideas, philosophies, and insight to astronomy, science and life in general. This volume has assembled thoughts, memories and scientific accomplishments influenced in one way or another by Bohdan, who was a Giant in his field. Nine friends, colleagues and admirers who have been touched by Paczynski personally, professionally, or both, contributed invited presentations. Topics in this volume include the influence of Bohdan Paczynski in the field of stellar evolution and variable stars, his crucial role in making the Optical Gravitational Lensing Experiment (OGLE) and the All Sky Automated Survey (ASAS) possible, and his revolutionary insistence on allowing anyone and everyone access to his stellar evolution code: The Paczynski Code. Also included are Bohdan's contributions to gravitational microlensing and the search for dark matter in the form of MACHOs. Particular emphasis is given to advances and unexpected discoveries from surveys such as MACHO, OGLE, and EROS. The impact Paczynski had on our understanding of gamma-ray bursts is also discussed. Finally, this celebration of Professor Bohdan Paczynski is completed with the addition of personal accounts of his life, brilliance, sense of humor, and inspiration to others. Paczynski's scientific contributions reach across all of astrophysics and bridge the gap between observation and theory. This book is of interest not only to those who knew him, but also to those who know of him and the immeasurable ways he left his mark on the community.
Download or read book The Variable Universe written by Jakob Chapman and published by Lulu.com. This book was released on 2014-12-28 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Variable Man: Philip K DickHe fixed things--clocks, refrigerators, vidsenders and destinies. But he had no business in the future, where the calculators could not handle him. He was Earth's only hope--and its sure failure!The Misplaced Spaceship: Harry HarrisonIt might seem careless to lose track of something like a battleship but interstellar space is on a different scale of magnitude. A misplaced battleship in the wrong hands can be most dangerous.Youth: Isaac AsimovThey found the two strange animals the morning after they heard the thunder sounds. They knew that they could never show their new pets to their parents.Bread Overhead: Fritz LeiberThe Staff of Life suddenly anddisconcertingly sprouted wings--and mankind had to eat crow!Rainworm: Jakob ChapmanThe bond was only marred in one way. I relived her strongest memories and emotions: the explosion of Candeo--being flung from the inferno while the rest of her race sizzled in silence--the planet below a glowing brand.
Download or read book The Variable Man written by Philip K. Dick and published by Prabhat Prakashan. This book was released on 2021-01-01 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: Philip K. Dick's 'The Variable Man' is a short science fiction story. This story was first published in the year 1952 in a magazine named the Planet Stories.
Download or read book The variable universe a celebration of Bohdan Paczy ski proceedings of a symposium held at Princeton University Princeton New Jersey USA 29 30 September 2007 written by Krzysztof Z. Stanek and published by . This book was released on 2009 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: A symposium to celebrate the life of Bohdan Paczynski (1940-2007), Lyman Spitzer Jr. Professor of Theoretical Astrophysics at Princeton University, took place on 29-30 September 2007. Bohdan Paczynski impacted astronomy and astronomers alike with his innovative ideas, philosophies, and insight to astronomy, science and life in general. This volume has assembled thoughts, memories and scientific accomplishments influenced in one way or another by Bohdan, who was a Giant in his field. Nine friends, colleagues and admirers who have been touched by Paczynski personally, professionally, or both, contributed invited presentations. Topics in this volume include the influence of Bohdan Paczynski in the field of stellar evolution and variable stars, his crucial role in making the Optical Gravitational Lensing Experiment (OGLE) and the All Sky Automated Survey (ASAS) possible, and his revolutionary insistence on allowing anyone and everyone access to his stellar evolution code: The Paczynski Code. Also included are Bohdan's contributions to gravitational microlensing and the search for dark matter in the form of MACHOs. Particular emphasis is given to advances and unexpected discoveries from surveys such as MACHO, OGLE, and EROS. The impact Paczynski had on our understanding of gamma-ray bursts is also discussed. Finally, this celebration of Professor Bohdan Paczynski is completed with the addition of personal accounts of his life, brilliance, sense of humor, and inspiration to others. Paczynski's scientific contributions reach across all of astrophysics and bridge the gap between observation and theory. This book is of interest not only to those who knew him, but also to those who know of him and the immeasurable ways he left his mark on the community.
Download or read book The Universe written by Naresh Dadhich and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is with great joy that we present a collection of essays written in honour of Jayant Vishnu Narlikar, who completed 60 years of age on July 19, 1998, by his friends and colleagues, including several of his for mer students. Jayant has had a long research career in astrophysics and cosmology, which he began at Cambridge in 1960, as a student of Sir Fred Hoyle. He started his work with a big bang, expounding on the steady state theory of the Universe and creating a new theory of gravity inspired by Mach's principle. He also worked on action-at-a-distance electrodynamics, inspired by the explorations of Wheeler, Feynman and Hogarth in that direction. This body of work established Jayant's rep utation as a bold and imaginative physicist who was ever willing to take a fresh look at fundamental issues, undeterred by conventional wis dom. This trait, undoubtedly inherited from his teacher and mentor, has always remained with Jayant. It is now most evident in his untir ing efforts to understand anomalies in quasar astronomy, and to develop the quasi-steady state cosmology, along with a group of highly distin guished astronomers including Halton Arp, Geoffrey Burbidge and Fred Hoyle. In spite of all this iconoclastic activity, Jayant remains a part of the mainstream; he appreciates as well as encourages good work along conventional lines by his students and colleagues. This is clear from the range of essays included in this volume, and the variety and distribution of the essayists.
Download or read book The Young Universe written by Richard Taillet and published by John Wiley & Sons. This book was released on 2022-09-08 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Young Universe presents four major physical and astrophysical themes related to these extreme phases of the primordial universe. In particular, it presents the physics of the primordial plasma and the concepts of quantum and particle physics necessary to describe this extreme state. It discusses the cosmological background radiation and explores inflation, an extremely rapid expansion phase that is believed to have occurred very early in cosmological history and to have shaped our present universe. The book also provides a synthesis of the dark matter problem.
Download or read book Understanding Variable Stars written by John R. Percy and published by Cambridge University Press. This book was released on 2007-05-24 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book was first published in 2007. Variable stars are those that change brightness. Their variability may be due to geometric processes such as rotation, or eclipse by a companion star, or physical processes such as vibration, flares, or cataclysmic explosions. In each case, variable stars provide unique information about the properties of stars, and the processes that go on within them. This book provides a concise overview of variable stars, including a historical perspective, an introduction to stars in general, the techniques for discovering and studying variable stars, and a description of the main types of variable stars. It ends with short reflections about the connection between the study of variable stars, and research, education, amateur astronomy, and public interest in astronomy. This book is intended for anyone with some background knowledge of astronomy, but is especially suitable for undergraduate students and experienced amateur astronomers who can contribute to our understanding of these important stars.
Download or read book The Glass Universe written by Dava Sobel and published by Penguin. This book was released on 2017-10-31 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: From #1 New York Times bestselling author Dava Sobel, the "inspiring" (People), little-known true story of women's landmark contributions to astronomy A New York Times Book Review Notable Book Named one of the best books of the year by NPR, The Economist, Smithsonian, Nature, and NPR's Science Friday Nominated for the PEN/E.O. Wilson Literary Science Writing Award "A joy to read.” —The Wall Street Journal In the mid-nineteenth century, the Harvard College Observatory began employing women as calculators, or “human computers,” to interpret the observations their male counterparts made via telescope each night. At the outset this group included the wives, sisters, and daughters of the resident astronomers, but soon the female corps included graduates of the new women's colleges—Vassar, Wellesley, and Smith. As photography transformed the practice of astronomy, the ladies turned from computation to studying the stars captured nightly on glass photographic plates. The “glass universe” of half a million plates that Harvard amassed over the ensuing decades—through the generous support of Mrs. Anna Palmer Draper, the widow of a pioneer in stellar photography—enabled the women to make extraordinary discoveries that attracted worldwide acclaim. They helped discern what stars were made of, divided the stars into meaningful categories for further research, and found a way to measure distances across space by starlight. Their ranks included Williamina Fleming, a Scottish woman originally hired as a maid who went on to identify ten novae and more than three hundred variable stars; Annie Jump Cannon, who designed a stellar classification system that was adopted by astronomers the world over and is still in use; and Dr. Cecilia Helena Payne, who in 1956 became the first ever woman professor of astronomy at Harvard—and Harvard’s first female department chair. Elegantly written and enriched by excerpts from letters, diaries, and memoirs, The Glass Universe is the hidden history of the women whose contributions to the burgeoning field of astronomy forever changed our understanding of the stars and our place in the universe.
Download or read book The Conscious Universe written by Menas Kafatos and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: This discussion resulted from a dialogue which began some seven years ago between a physicist who specializes in astrophysics, general relativity, and the foundations of quantum theory, and a student of cultural history who had done post-doctoral work in the history and philosophy of science. Both of us at that time were awaiting the results of some experiments being conducted under the direction of the physicist Alain Aspect at the University of Paris-South. ! The experiments were the last in a series designed to test some predictions based on a mathematical 2 theorem published in 1964 by John Bell. There was no expectation that the results of these experiments would provide the basis for developing new technologies. The questions which the experiments were designed to answer concerned the relation ship between physical reality and physical theory in the branch of physics known as quantum mechanics. Like most questions raised by physicists which lead to startling new insights, they were disarmingly simple and direct. Is quantum physics, asked Bell, a self-consistent theory whose predictions would hold in a new class of experiments, or would the results reveal that the apparent challenges of quantum physics to the understanding in classical physics of the relationship between physical theory and physical reality were merely illusory? Answering this question in actual experiments could also, suggested Bell, lead to another, quite dramatic, result.
Download or read book Advanced Computational Methods in Energy Power Electric Vehicles and Their Integration written by Kang Li and published by Springer. This book was released on 2017-09-01 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt: The three-volume set CCIS 761, CCIS 762, and CCIS 763 constitutes the thoroughly refereed proceedings of the International Conference on Life System Modeling and Simulation, LSMS 2017, and of the International Conference on Intelligent Computing for Sustainable Energy and Environment, ICSEE 2017, held in Nanjing, China, in September 2017. The 208 revised full papers presented were carefully reviewed and selected from over 625 submissions. The papers of this volume are organized in topical sections on: Biomedical Signal Processing; Computational Methods in Organism Modeling; Medical Apparatus and Clinical Applications; Bionics Control Methods, Algorithms and Apparatus; Modeling and Simulation of Life Systems; Data Driven Analysis; Image and Video Processing; Advanced Fuzzy and Neural Network Theory and Algorithms; Advanced Evolutionary Methods and Applications; Advanced Machine Learning Methods and Applications; Intelligent Modeling, Monitoring, and Control of Complex Nonlinear Systems; Advanced Methods for Networked Systems; Control and Analysis of Transportation Systems; Advanced Sliding Mode Control and Applications; Advanced Analysis of New Materials and Devices; Computational Intelligence in Utilization of Clean and Renewable Energy Resources; Intelligent Methods for Energy Saving and Pollution Reduction; Intelligent Methods in Developing Electric Vehicles, Engines and Equipment; Intelligent Computing and Control in Power Systems; Modeling, Simulation and Control in Smart Grid and Microgrid; Optimization Methods; Computational Methods for Sustainable Environment.
Download or read book The Master Set Universe written by Maxwell Katz and published by Janus Publishing Company Lim. This book was released on 2007 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Master Set Universe is an in-depth investigation, through the realms of Quantum Mechanics and Mathematics, of the concept of the Master Set, an all-encompassing 'every thing', entirely self-referential in nature. Maxwell Katz makes use of a number of analogies to illustrate his themes. The way in which the Master Set projects the illusion of a 'mechanical world', for example, is likened to a computer game, which plays out certain events although, at the same time, it contains infinite possibilities within itself. Meaning and truth are analysed in the light of this Projective Realm. There are no absolutes; meaning is simply a way that we define ourselves, giving us perspective in the way we perceive all 'other'. The overriding feature of the Master Set Universe is its Oneness. From it comes every thing; it is every thing.
Download or read book The Extravagant Universe written by Robert P. Kirshner and published by Princeton University Press. This book was released on 2016-09-13 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Extravagant Universe tells the story of a remarkable adventure of scientific discovery. One of the world's leading astronomers, Robert Kirshner, takes readers inside a lively research team on the quest that led them to an extraordinary cosmological discovery: the expansion of the universe is accelerating under the influence of a dark energy that makes space itself expand. In addition to sharing the story of this exciting discovery, Kirshner also brings the science up-to-date in a new epilogue. He explains how the idea of an accelerating universe--once a daring interpretation of sketchy data--is now the standard assumption in cosmology today. This measurement of dark energy--a quality of space itself that causes cosmic acceleration--points to a gaping hole in our understanding of fundamental physics. In 1917, Einstein proposed the "cosmological constant" to explain a static universe. When observations proved that the universe was expanding, he cast this early form of dark energy aside. But recent observations described first-hand in this book show that the cosmological constant--or something just like it--dominates the universe's mass and energy budget and determines its fate and shape. Warned by Einstein's blunder, and contradicted by the initial results of a competing research team, Kirshner and his colleagues were reluctant to accept their own result. But, convinced by evidence built on their hard-earned understanding of exploding stars, they announced their conclusion that the universe is accelerating in February 1998. Other lines of inquiry and parallel supernova research now support a new synthesis of a cosmos dominated by dark energy but also containing several forms of dark matter. We live in an extravagant universe with a surprising number of essential ingredients: the real universe we measure is not the simplest one we could imagine.
Download or read book The Expanding Universe written by Robert W. Smith and published by Cambridge University Press. This book was released on 1982-04-08 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book analyses, with archival evidence, the three major changes to astronomers' theories between 1900 and 1931.
Download or read book Our Almost Impossible Universe written by R. Mirman and published by iUniverse. This book was released on 2006 with total page 535 pages. Available in PDF, EPUB and Kindle. Book excerpt: WHY GOD COULD NOT CREATE THE UNIVERSE WITH A DIFFERENT DIMENSION EVEN IF IT WANTED TO or perhaps anything else. Perhaps the universe must be the way it is. It seems that what is omnipotent is mathematics, elementary arithmetic, just counting. Yet even mathematics is not powerful enough to create a universe¿there are just too many conditions, conflicting. Existence is impossible. Beyond that for there to be structure is quite inconceivable. But the universe does exist, there are galaxies, stars, even the possibility of life. That life is possible merely allows it to exist but only with the greatest good fortune does it actually occur. Intelligence is vastly less likely, ability and technology far more improbable. That we are, what we are, seem so strange, inconceivable, that we are left merely with wonder¿and, as we seem unable to realize, the need for the deepest care, responsibility and gratitude. We have been given by the unbelievable benevolence of chance, no life, but life with the most wondrous part of the universe, the ability to think, to know, to create, to wonder¿and thus the demand that we use our most awesome gifts to protect them, to protect and preserve the world in which they exist, and the life, likely so rare if not unique in the universe, which has received these astounding favors of chance, that has been given by nature its most exalted constituents. What we are requires that we enhance what we are, what we are part of, to see, understand and be grateful. An exploration of the precise conditions required for the existence of humans in the universe. ...the author does an admirable job delineating the laws of physics without becoming too bogged down in complicated jargon, and he maintains a sense of wonder about the unique and random nature of the universe. He repeatedly celebrates our highly improbable achievements as a species, marveling at our ability to use the language of abstract mathematics to unravel the mysteries of existence. ... the prevailing tone of the narrative is clear and confident, marked by a meticulous attention to detail. An...often fascinating journey through the history of the universe and mankind. -Kirkus Discoveries
Download or read book Rough Sets Fuzzy Sets Data Mining and Granular Computing written by Guoyin Wang and published by Springer Science & Business Media. This book was released on 2003-05-08 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 9th International Conference on Rough Sets, Fuzzy Sets, Data Mining, and Granular Computing, RSFDGrC 2003, held in Chongqing, China in May 2003. The 39 revised full papers and 75 revised short papers presented together with 2 invited keynote papers and 11 invited plenary papers were carefully reviewed and selected from a total of 245 submissions. The papers are organized in topical sections on rough sets foundations and methods; fuzzy sets and systems; granular computing; neural networks and evolutionary computing; data mining, machine learning, and pattern recognition; logics and reasoning; multi-agent systems; and Web intelligence and intelligent systems.
Download or read book Explorer of the Universe A Biography of George Ellery Hale written by Helen Wright and published by Plunkett Lake Press. This book was released on 2021-03-18 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: “George Ellery Hale [1868-1938] is the subject of this impressive biography... Wright charts Hale’s steady progress towards leadership in the nascent field of astrophysics from his childhood experiments at home in Chicago, through student days at MIT, to his first observatory at Kenwood, all of which demonstrate his passion for unravelling the secrets of nature through the then new medium of spectroscopy. This enthusiasm led him into contact with most of his peers both in America and beyond (Lockyer, Huggins, Pickering, Rowland, and many more), many of whom remained close associates and correspondents for years after. Probably this sense of community made Hale so active in the organization of science, including the formation of the AAS [American Astronomical Society], the IAU [International Astronomical Union], and ICSU [International Council of Scientific Unions]. It also gave him the contacts to give the Astrophysical Journal such a good start in 1895. Perhaps the greatest debt we owe Hale is for his relentless drive towards the creation of ever bigger and better facilities, starting with the still unsurpassed Yerkes refractor, continuing with the solar telescopes on Mt. Wilson and then the 60- and 100-inch telescopes on the same peak, and concluding with the 200-inch [at Mt. Palomar]... Scientifically, Hale’s lifelong affair with the Sun brought him success in the detection of magnetic fields and early studies of surface activity by means of the spectroheliograph he developed, and for which he was duly fêted, and the frustrations of trying to record the corona. But these were early successes and as astropolitics and finance took an ever increasing share of his time, he was able to contribute less than he would have liked. Part of the problem was the illness, with both physical and mental symptoms, which progressively plagued the life of this hyperactive polymath; it is sad to note his decline which prevented him playing a fuller part in the creation of what was to become his memorial... this [biography] is something of a classic on one of astronomy’s giants.” — David Strickland, The Observatory “This important biography is well written and is highly recommended.” — A. E. Covington, Journal of the Royal Astronomical Society of Canada “[An] outstanding biography of this most remarkable man... Helen Wright has done a superb job of tracing Hale’s development not only of new and powerful instruments and of his important discoveries of sunspot magnetic fields and the law of reversing polarities, but also of the embryonic state of American science in the early days of this century... an authoritative biography of one of the most influential men of science this country has produced. The hook will bring to contemporary scientists and historians the story of this unique astronomer whose life is of such special interest to the Caltech community.” — Allan Sandage, Caltech Magazine (formerly Engineering and Science) “Helen Wright gives a detailed account of the life and almost frantic activities of this remarkable scientific leader... In summarizing astrophysical events of the years 1880 to 1950... Wright has provided a useful and fascinating account of scientific development that led to the preeminence of the United States.” — Thornton Page, Science “In writing the story of Hale’s origins, career and bequest to posterity Helen Wright has richly served her fellow astronomers. No one else could have done so well. Her account preserves an admirable balance in presenting Hale not only as a doer but also as a dreamer... Miss Wright’s excellent biography covers the highlights of his career... Miss Wright’s book is highly authentic.” — Harlow Shapley, Scientific American Published under license from Springer Science+Business Media, LLC, part of Springer Nature
