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Занимательные головоломки (2013 No.47) |
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Категория: Научные журналы, Головоломки, фокусы, задачи |
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Автор: коллектив
Издательство: DeAgostini
Год издания: 2013
Количество страниц: 20
Язык: русский
Формат: PDF
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Познавательно-развлекательный журнал о математике и головоломках, о применении математики в повседневной жизни, об истории этой науки, великих ученых, загадках и разгадках головоломок и многом другом. Каждый выпуск включает в себя пять разделов, которые позволят взглянуть на математику с неожиданной точки зрения - как на увлекательный мир, в котором нет места скуке. |
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Britain at War Magazine 2014-01 |
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Категория: Военное дело » История войн |
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Издательство: Key Publishing Ltd
Количество страниц: 116
Язык: english
Формат: PDF
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Britain at War Magazine – A History of Conflict Brought to you by Key Publishing Ltd, Europe’s Leading Aviation Publisher. |
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The Mystery of Numbers |
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Категория: Естественные науки » Физико-математические науки » Математика, геометрия, статистика |
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Автор: Annemarie Schimmel
Издательство: Oxford University Press
Год издания: 1993
isbn: 0195063031
Количество страниц: 325
Язык: english
Формат: PDF (scan)
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Why is the number seven lucky--even holy--in almost every culture? Why do we speak of the four corners of the earth? Why do cats have nine lives (except in Iran, where they have seven)? From literature to folklore to private superstitions, numbers play a conspicuous role in our daily lives. But in this fascinating book, Annemarie Schimmel shows that numbers have been filled with mystery and meaning since the earliest times, and across every society. In The Mystery of Numbers Annemarie Schimmel conducts an illuminating tour of the mysteries attributed to numbers over the centuries. She begins with an informative and often surprising introduction to the origins of number systems: pre-Roman Europeans, for example, may have had one based on twenty, not ten (as suggested by the English word "score" and the French word for 80, quatrevingt --four times twenty), while the Mayans had a system more sophisticated than our own. Schimmel also reveals how our fascination with numbers has led to a rich cross-fertilization of mathematical knowledge: "Arabic" numerals, for instance, were picked up by Europe from the Arabs, who had earlier adopted them from Indian sources ("Algorithm" and "algebra" are corruptions of the Arabic author and title names of a mathematical text prized in medieval Europe). But the heart of the book is an engrossing guide to the symbolism of numbers. Number symbolism, she shows, has deep roots in Western culture, from the philosophy of the Pythagoreans and Platonists, to the religious mysticism of the Cabala and the Islamic Brethren of Purity, to Kepler's belief that the laws of planetary motion should be mathematically elegant, to the unlucky thirteen. After exploring the sources of number symbolism, Schimmel examines individual numbers ranging from one to ten thousand, discussing the meanings they have had for Judaic, Christian, and Islamic traditions, with examples from Indian, Chinese, and Native American cultures as well. Two, for instance, has widely been seen as a number of contradiction and polarity, a number of discord and antithesis. And six, according to ancient and neo-platonic thinking, is the most perfect number because it is both the sum and the product of its parts (1+2+3=6 and 1x2x3=6). Using examples ranging from the Bible to the Mayans to Shakespeare, she shows how numbers have been considered feminine and masculine, holy and evil, lucky and unlucky. A highly respected scholar of Islamic culture, Annemarie Schimmel draws on her vast knowledge to paint a rich, cross-cultural portrait of the many meanings of numbers. Engaging and accessible, her account uncovers the roots of a phenomenon we all feel every Friday the thirteenth. |
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Всеволод Залесский. Дилогия |
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Категория: Гуманитарные науки » Языкознание » Литература |
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Автор: Золотько Александр
Издательство: Самиздат
Год издания: 2013
Количество страниц: 674
Язык: русский
Формат: FB2
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Жизнь полна сюрпризов. Отправляясь в магазин за хлебом, студент Всеволод Залесский не мог даже предположить, что случайная стычка с местными отморозками перенесет его прямиком из январского вечера в июльский полдень 1941 года. |
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FemJoy Kamilla J - Good For You |
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Категория: Домоводство, досуг » Любовь, эротика |
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Издательство: FemJoy
Год издания: 2013
Количество страниц: 125
Язык: english
Формат: JPG
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Эротическая фотоподборка “FEMJOY” известной модели Kamilla J. Фотосессия содержит 125 эксклюзивных снимков высокого качества под общим названием “Good For You”. |
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Combat Aircraft Monthly Magazine 2014-02 |
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Категория: Военное дело » Военная техника » Самолеты |
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Издательство: Midland Publishing
Количество страниц: 100
Язык: english
Формат: PDF
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Renowned as the world’s top military aviation magazine, Combat Aircraft Monthly is the magazine of choice for modern military aviation. Covering subjects from around the world, from combat accounts from the cockpit over Afghanistan to air force overviews and emerging aerospace industry stories, Combat Aircraft Monthly delivers all the latest news, with added value from expert analysis, opinion and views from the front line. Combat Aircraft Monthly is the military aviation magazine that sets the pace, often with world exclusives, the best and most authoritative features every month, and all supported by imagery from the world’s leading aviation photographers. |
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FHM (2012 No.11) South Africa |
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Категория: Домоводство, досуг » Любовь, эротика |
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Издательство: FHM
Год издания: 2012
Количество страниц: 132
Язык: english
Формат: PDF
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FHM (2012 No.11) South Africa |
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Air International 2014-01 |
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Категория: Военное дело » Военная техника » Самолеты |
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Издательство: Key Publishing
Количество страниц: 116
Язык: english
Формат: PDF
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Британский журнал о военной авиации |
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Aviation News 2014-01 |
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Категория: Военное дело » Военная техника » Самолеты |
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Издательство: Aviation News Inc.
Количество страниц: 84
Язык: english
Формат: PDF
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Журнал о классических военных самолетах |
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Wartime Standard Ships Volume Two: The Oceans, The Forts & The Parks |
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Категория: Технические науки » Транспорт » Водный транспорт, судостроение |
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Автор: W. H. Mitchell, L. A. Sawyer
Издательство: Journal of Commerce and Shipping Telegraph
Год издания: 1966
Количество страниц: 66
Язык: english
Формат: PDF (scan)
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Between the two world wars, shipbuilding as a whole was a dormant factor in the Canadian economy and in September 1939, Canada's merchant navy consisted of less than 400 ships of 500 gross tons and over, totalling about 1,100,000 gross tons. Of this total some 260 ships of 700,000 tons were operating in the Great Lakes and St. Lawrence area, sixty coasters of 150,000 tons sailed in the coastal routes, and only 40 ships of about 250,000 gross tons could be classified as ocean-going vessels. In this year also, Canada's shipbuilding facilities were at a low ebb for only about 2,000 skilled men, shared between about ten shipyards, were immediately available and they were put to work on naval construction, the hastily organised War Supply Board controlling, among other things, the building of ships. This arrangement lasted until 1940 when the board was superseded by the Department of Munitions and Supply. In the autumn of 1940 the British Merchant Shipbuilding Mission arrived in North America and following a tour of a number of shipbuilding and engineering works, involving travel of many thousands of miles, orders were placed and contracts signed for sixty 10,000-ton deadweight dry cargo ships to be built in two United States' yards and for twenty ships in Canadian yards. This latter order was shortly afterwards increased to 26 ships, shared between Burrard Dry Dock Co., Ltd. of Vancouver, Davie Shipbuilding & Repairing Co., Ltd., of Lauzon, Quebec and Canadian Vickers, Montreal. This latter company also received orders for propelling machinery and boilers, whilst other orders for engines were placed with Dominion Engineering Workshops, Montreal, and further boilers ordered from Dominion Bridge Company, Vancouver. At the same time the Canadian Government also placed orders for merchant hulls. The first keel was laid down in April 1941 and this was the start of the mammoth task done by Canadian shipbuilders during the war involving, not only the construction of some 450 merchant vessels but also some 300 naval ships. Also in April 1941 a Government corporation known as Wartime Merchant Shipping Ltd., was formed to supervise, co-ordinate, expand and expedite construction of merchant ships. The burden was enormous. Shipyards were built, extended, or had their capacity increased for building the 10,000-tonncrs, but where yards were too small, the 4,700 tdw. ship was laid down and these two types dominated the Canadian merchant shipbuilding programme during the war years. |
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