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Fiat G.91 R.3 1969-1979 (F-40 Flugzeuge Der Bundeswehr 31) |
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Категория: Военное дело » Военная техника » Самолеты |
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Автор: Siegfried Wache
Издательство: Bmvd-Verlag
Год издания: 1998
isbn: 3935761317
Количество страниц: 48
Язык: другой
Формат: PDF (scan)
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German-language text with English photo-captions. Packed with many rare photographs (b/w and color) and highly accurate 1/72 scale plans. Essential for both modelers and Cold War aviation historians. |
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Squadron/Signal Publications 6069: Hungarian Air Force - Aircraft Specials series |
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Категория: Военное дело » Военная техника » Самолеты |
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Автор: George Punka, Don Greer
Издательство: Squadron/Signal Publications
Год издания: 1994
isbn: 0897473493
Количество страниц: 66
Язык: english
Формат: PDF (scan)
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The book - in the usual great squadron/signal quality - gives a superreb overview of Hungarian military aviation from the fall of the Austro-Hungarian Monarchy till the very end of WWII. Due to it's size it will never be "The Bible" of WWII Hungarian Military Aviation, but is still a must in every person's library, who is dealing with the topic. |
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Walker's Marsupials of the World (Walker's Mammals) |
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Категория: Биологические науки » Зоология позвоночных. Животные » Териология. Млекопитающие |
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Автор: Ronald M. Nowak, Christopher R. Dickman
Издательство: The Johns Hopkins University Press
Год издания: 2005
isbn: 0801882222, 0801882117
Количество страниц: 247
Язык: english
Формат: PDF (scan)
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Authoritative and engaging, this volume from the Walker's Mammals series focuses on marsupials, pouched animals whose unusual method of reproduction—between egg laying and placental birth—places them in a unique category among mammals. A comprehensive guide to the biology and distribution of marsupials, this book includes common and scientific names, size and physical traits, habitat and ecology, behavior and social interactions, reproduction, life span, and conservation. The text is coupled with illustrations from the collections of leading photographers and the world's greatest museums. An introduction by marsupial expert Christopher R. Dickman describes the evolution and current status of marsupials and reveals why they add so much intrigue to the natural world. |
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A Field Guide to Coral Reefs: Caribbean and Florida (Peterson Field Guides) |
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Категория: Биологические науки » Зоология позвоночных. Животные » Ихтиология. Рыбы |
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Автор: Eugene H. Kaplan, Roger Tory Peterson, Susan L. Kaplan
Издательство: Houghton Mifflin Harcourt
Год издания: 1999
isbn: 0618002111
Количество страниц: 279
Язык: english
Формат: PDF (scan)
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With more than 500 species described and more than 400 illustrations, this guide provides quick and easy visual identification of fishes, mollusks, sponges, shrimps, lobsters, crabs, and much more of the fauna found on the coral reefs of the Caribbean and Florida. |
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Squadron/Signal Publications 6030: Pictorial History of the Blue Angels: U.S. Navy Flight Demonstration Teams, 1928-1981 - Aircraft Specials series |
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Категория: Военное дело » Военная техника » Самолеты |
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Автор: Jim McGuire, Don Greer
Издательство: Squadron/Signal Publications
Год издания: 1981
isbn: 0897471172
Количество страниц: 82
Язык: english
Формат: PDF (scan)
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This book deals primarily with a present day group Of men and aircraft that represent the epitome of Navy and Marine Corps aviation. In order to more fully understand where they came from, this book also takes a brief look back to the very beginning of naval aviation and early precision acrobatic flying. During those early years the men of those acrobatic teams, and the aircraft they flew, ventured into a realm of flight that bore a resemblance to the early days of American space pioneering. Men with limited knowledge and machines with limited technology joined together to bring about a naval tradition. It is a tradition of 'teamwork', and it is on this very basis that these unique groups of aviators and aircraft have come together during the last half century and each left their mark in the history of Navy and Marine aviation. Each team, in their own unique way, has carried the inspirations of their forefathers in aerial displays of precision formation flying. They have flown their breathtaking performances through an evolution of men, machines and maneuvers while continually striving for the ultimate goal of perfection. Even before the Three Sea Hawks of 1928, precision formation Hying was a routine and very important aspect of naval aviation. However, it remained for these fledgling airmen to bring their display of aerial teamwork down close to the ground for the benefit of spectators. That first exhibition of aerial showmanship set the stage for what is today's team of men and aircraft that had become world renowned for its display of the art of flying. Recognized as the Navy and Marine Corps' first 'official' flight demonstration squadron, the Blue Angels began their unprecedented history in June 1946. From (hat time until today, the Blue Angels have continued in their predecessor's footsteps and could exemplify their Navy heritage in no greater or more spectacular way than in the unity with which they fly. An attempt to bring together the history of Navy and Marine Corps flight demonstration teams, seemed to this author, from the first, to be a very special undertaking. It was felt that to bring together all naval flight demonstration teams from the past to the present would be a salute to Navy-tradition, which is the basis on which this book has been written. |
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Waffen-Arsenal Band 39: Sturmgeschütz III |
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Категория: Военное дело » Военная техника » Танки, БТР |
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Автор: Bruce Culver, Don Greer
Издательство: Podzun-Pallas-Verlag
Год издания: 1977
isbn: 3790900648
Количество страниц: 52
Язык: другой
Формат: PDF (scan)
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Bereits innerhalb eines Jahres nach Aufstellung der Wehrmacht (1934) waren die Forderungen nach Kampfpanzern erfüllt und viele neue taktische Grundsätze in Vorschriften niedergelegt worden. Die neugeborenen Panzerdivisionen waren damit zwar einsatzfähig geworden, doch klagten viele Infanterieoffiziere über das Fehlen eines angemessenen Fahrzeugs zur Unterstützung der zu Fuß vorgetragenen Infanterieangriffe. Der Wunsch nach einer schwer gepanzerten Unterstützungswaffe, die Widerstandsnester und Hindernisse während eines Angriffs zerstören konnte, wurde immer lauter. Die Erfahrungen des Ersten Weltkrieges trugen zur Forderung nach einem derartigen Fahrzeug, das durch die Infanterie selbst eingesetzt werden sollte, bei. 1936 kam es daher zur militärischen Forderung und Entwicklung eines entsprechenden Unterstützungs-Fahrzeugs mit der KwK 7,5 cm L/24, die bereits im PzKpfw IV Verwendung fand. Daimler-Benz baute danach Fahrgestell und Aufbau, Krupp die Kanone und neue Lafettierung. Bereits 1937 wurden fünf Nullserien-Prototypen gebaut, die mit dem etwas modifizierten Fahrgestell des PzKpfw III, Ausf. B ausgestattet waren. Sie nahmen die 7,5 cm-Kanone in einem niedrigen, festen Überbau auf; die Lafettierung hatte eine begrenzte (15°) Seitenrichtmöglichkeit, die kleinere Korrekturen des Anrichtens mit dem ganzen Fahrzeug zuließ. Da diese Vorläufer-Modelle aus Weichstahl hergestellt wurden, waren sie nicht kriegstauglich; sie hatten auch nur die Aufgabe, daß mit ihnen Erprobungen durchgeführt wurden. Aus ihnen entwickelte sich die Ausf. A. |
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Waffen-Arsenal Band 115: Deutsche Nahaufklärer 1930-1945 |
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Категория: Военное дело » Военная техника » Самолеты |
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Автор: Manfred Griehl
Издательство: Podzun-Pallas-Verlag
Год издания: 1989
isbn: 3790903582
Количество страниц: 51
Язык: другой
Формат: PDF (scan)
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Die eigene Luftaufklärung hatte von je her die Aufgabe, der Führung präzise Angaben über das Gelände, den Aufmarsch sowie Kräfteverteilung des Gegners zu liefern. Darüber hinaus sollte das unmittelbare feindliche Hinterland aufgeklärt und überwacht werden, um frühzeitig Daten über vormarschierende oder zurückgehende Truppen zu erhalten. Anfänglich wurde die operative Aufklärung den Heeresgruppen und Armeen zugewiesen. Schließlich ging die Oberste Führung dazu über, auch den Panzerverbänden je zwölf Fernaufklärer beizugeben. Für die operative und taktische Aufklärungsarbeit auf dem Gefechtsfeld erhielten die Korps und Panzerdivisionen jeweils drei Verbindungsflugzeuge und eine aus zwölf Heeresaufklärern bestehende H-Staffel. Anfang des Krieges trugen die "Heeresaufklärer" (hier fanden sich gleichzeitig Fern-und Nahaufklärer) zweistellige Ziffern. Beispielsweise bedeutete die Bezeichnung Aufklärungsgruppe 21: Zweite Aufklärungsgruppe (H) im Bereich der Luftflotte (Lfl.) 1. Die den deutschen Panzerdivisionen unterstellten Heeresaufklärer-Staffeln trugen zusätzlich die Bezeichnung "Pz". |
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Bristol Type 171 Sycamore Mk. 52 (F-40 Flugzeuge Der Bundeswehr 20) |
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Категория: Военное дело » Военная техника » Самолеты |
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Автор: Michael Riedesser
Издательство: Bmvd-Verlag
Год издания: 1993
isbn: 3935761201
Количество страниц: 39
Язык: другой
Формат: PDF (scan)
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German-language text with English photo-captions. Packed with many rare photographs (b/w and color) and highly accurate 1/72 scale plans. Essential for both modelers and Cold War aviation historians. |
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A Field Guide to Pacific Coast Fishes: North America (Peterson Field Guides) |
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Категория: Биологические науки » Зоология позвоночных. Животные » Ихтиология. Рыбы |
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Автор: Earl S. Herald, William N. Eschmeyer
Издательство: Houghton Mifflin Harcourt
Год издания: 1983
isbn: 061800212X
Количество страниц: 305
Язык: english
Формат: PDF (scan)
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More than 600 species are described in detail, with more than 525 illustrations. This is the guide for quick, reliable identification of fishes that you'll encounter while fishing, snorkeling, diving, or even strolling along a Pacific Coast beach. |
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Nature's I.Q. |
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Категория: Биологические науки |
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Автор: Balázs Hornyánszky, István Tasi
Издательство: Torchlight Publishing
Год издания: 2002
isbn: 9639353094
Количество страниц: 161
Язык: english
Формат: PDF (scan)
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Foreword: Ever since Darwin published The Origin of Species in 1859, the theory of evolution has been the center of many heated controversies. There is no doubt that leading scientific institutions—partly influenced by philosophical or ideological considerations, rather than strictly science—have always accepted and continue to accept the basic Darwinian concept, or one of its more up-to-date but essentially unchanged versions. However, a countercurrent that treated Darwinian ideas with criticism existed from the beginning. There have always been researchers who never accepted the Darwinian concept as proven. Nature’s I.Q. follows in this critical trend of pointing out the many weak points of the theory. Critiques of Darwinism—or more generally, of evolutionism—often focus on general principles. This somewhat decreases their persuasive power, since the uncovering of factual details is usually more convincing than mere generalities. This is all the more evident when we realize that the arguments for Darwinism, or evolutionism, are for the most part also general. One of the key questions of current discussions is the problem of the mechanism of evolution or, more precisely, of transformation (i.e., the transformation of different species into another). According to Darwinism and neo-Darwinism, this question is easy to handle. Proponents of these theories simply refer to two factors: mutation and selection. Mutation is the modification of the genetic material of a living thing. As a result, the living thing will produce issues that are hereditarily different from it. Selection in turn filters out the less fit for life from among these issues and, at the same time, helps multiply those more fit. The great improbability of organisms developing by mutation and selection can seriously shake one’s faith in this mechanism. Several scientists made mathematical calculations to prove that if the extremely differentiated living world had come into existence in such a way, it would have necessitated a tremendous number of mutations. For the production of all these mutations, even the estimated billions of years of the existence of the universe would not be enough. Nature’s I.Q. approaches the question in a similar way, but from a slightly different angle. Rather than presenting the often not-so-graphic considerations from the realm of the calculus of probabilities, it shows us the unlimited variety of the living world, including those highly improbable—we may confidently say, wonderful— phenomena that researchers encounter daily. Anyone reading this book will certainly contemplate whether it is probable, even possible, that these extremely complex phenomena are merely products of the primitive, arbitrary mechanism of mutation and selection. Besides its outstanding achievements in the field of principles, another merit of the book is its presentation of examples, allowing readers to improve their knowledge of numerous natural phenomena. And finally, a personal remark: by qualification I am a physicist, but apart from factual questions of this branch of learning, I have always been interested in the most general, philosophical questions of science. From among these, one of the most interesting and most crucial is the question of the variety of the living world, in other words, the question of biodiversity. When I began to explore this topic, I soon realized that “science” means something much less exact in this field than what I was accustomed to in physics. Statements that in physics would be accepted as at most provisional working hypotheses, in biology are accepted as theories, and even as proven facts. I am convinced that scientific theories that determine our whole worldview should not rest on such shaky foundations. Thus, I kindly recommend this book to all readers. Budapest, January 10, 2002 Dr. Ferenc Jeszenszky |
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