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3 produkter
492 kr
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The purpose of the book is a dual one: to detail the nature and results of Tunguska investigations in the former USSR and present-day CIS, and to destroy two long-standing myths still held in the West. The first concerns alleged “final solutions” that have ostensibly been found in Russia or elsewhere. The second concerns the mistaken belief that there has been little or no progress in understanding the nature of the Tunguska phenomenon. All this is treated by the author in a scholarly and responsible manner. Although the book does present certain unusual findings of Russian and Ukrainian scholars, it is important to stress that this is not a sensational book; it is, rather, a serious exposition of the results of rational investigations into a difficult scientific problem. We are demonstrating the true complexity of the problem that is now entering its second century of existence. Simple meteoritic models cannot explain all the characteristics of this complicated event, and therefore certain so-called “unconventional hypotheses” about the nature of the Tunguska explosion are to be considered as well.
492 kr
Skickas inom 10-15 vardagar
The purpose of the book is a dual one: to detail the nature and results of Tunguska investigations in the former USSR and present-day CIS, and to destroy two long-standing myths still held in the West. The first concerns alleged “final solutions” that have ostensibly been found in Russia or elsewhere. The second concerns the mistaken belief that there has been little or no progress in understanding the nature of the Tunguska phenomenon. All this is treated by the author in a scholarly and responsible manner. Although the book does present certain unusual findings of Russian and Ukrainian scholars, it is important to stress that this is not a sensational book; it is, rather, a serious exposition of the results of rational investigations into a difficult scientific problem. We are demonstrating the true complexity of the problem that is now entering its second century of existence. Simple meteoritic models cannot explain all the characteristics of this complicated event, and therefore certain so-called “unconventional hypotheses” about the nature of the Tunguska explosion are to be considered as well.
267 kr
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An intriguing overview of the ways in which science could find evidencefor extraterrestrial lifeAre we alone in the universe, oris life a universal phenomenon?For fifty years,astronomers in SETI (Search for ExtraterrestrialIntelligence) have scanned the universe for intelligent signals, but with no success. In this intriguing book, Edward Ashpole explains the probable reasons for this and discusses other avenues of investigation more in line with the nature of science and technology. The author examines the problems inherent in scanning the universe for radio or optical signals from an alien intelligence. Theseinclude the difficulty of trying to communicate with another species possessing a completely unknown form of technology and the vast distances that alien communications would have to travel to reach us. This leads Ashpoleto other ways of finding evidence for extraterrestrial life, giventhat advanced civilizations would probably use artificial intelligenceforinterstellar travel. Our scientists now know how to detect the presence of life on a planet by observing its spectral lines, so more advanced alien researchers would have had ample time (about two billion years) to investigate these "signatures of life" coming from Earth. Hence, the author argues, alien space probes could exist within our own solar system; there might be evidence on the erosion-free Moon or on another moon or planet. In fact, a few scientists have scannedNASA's best photography,looking for evidence of such "alien archaeology."In a final chapter, the author urges an open-minded attitude on the part of scientists to allcredible sources ofinformation, along with the use of the scientific method to test various hypothesesand weed out the fantasy factor, which so often interferes with seriousattempts to find hard evidence of extraterrestrial intelligence.Informative and fascinating, Signatures of Life delves into a topic thatoften provokes wild speculation in a thought-provoking yet scientifically responsible way.