Автор: Илья Мельников
Издательство: Litres
Год издания: 2012
Количество страниц: 39
Язык: русский
Формат: DOC
Каждый владелец дачного участка мечтает превратить его в райский уголок. А это можно сделать лишь ответив на все многочисленные вопросы, возникающие при воплощении проекта застройки в жизнь. Как устроить на территории участка альпийскую горку, бассейн с каскадом, газон с зелеными вазами? Где и как правильно проложить дорожки, сделать пандусы, лестницы? Какой материал можно при этом использовать? И вообще – с чего начинать? Брошюры из серии «Строим дачу» помогут вам найти ответы на эти и многие другие вопросы.
Автор: Рамачандран В. С. (ред.)
Издательство: Стройиздат
Год издания: 1988
isbn: 5-274-00208-0
Количество страниц: 575
Язык: русский
Формат: DJVU
В книге международного коллектива авторов освещен опыт применения добавок в бетоны с учетом современных достижений науки и практики. Рассмотрены состав, свойства, технология применения, перспективные направления использования добавок разных классов. Приведены сведения по сырьевым ресурсам и ориентировочной экономической эффективности добавок. Для инженерно-технических и научных работников научно-исследовательских и строительных организаций.
Автор: Robert Bluffield
Издательство: Ian Allan
Год издания: 2009
isbn: 1906537070, 9781906537074
Количество страниц: 227
Язык: english
Формат: PDF (scan)
Imperial Airways is a name redolent of the excitement and glamor of the pioneering years of flight. Founded in the 1920s, Imperial Airways flew to destinations all over the world. This beautiful and evocative book on the 'golden age' of passenger flight is the result of years of research, and the text is complemented by a wealth of stunning photographs and ephemera. It will be the most definitive book published on the history of Imperial Airways and the formative years of British commercial aviation. The book begins immediately following World War I with the pioneering companies - Air Transport & Travel Ltd (AT&T), Instone, Handley Page, Daimler Airways and others - and shows how, after AT&T's demise, the remaining three companies were brought together in 1924 to form Imperial Airways. The company continued through difficult times, political uncertainties and fierce competition to open routes to India, South Africa and beyond. This was achieved through the untiring efforts of colorful characters such as Sir Sefton Brancker, Herbert Brackley, George Woods Humphery, Sir Eric Geddes and an array of often eccentric pilots such as one-eyed Ray Hinchliffe and 'All-Weather Mac' Robert McIntosh. The book covers all the various different types of aircraft flying at the time. Often out-of-date and, on occasions, considered to be dangerous, the companies maintained a level of safety and reliability that was sometimes against all the odds. This is especially true considering the lack of navigational aids and other equipment that was available. The story continues with the arrival of the legendary HP 42 airliner, the era of the great flying boats and the experimental 'Mercury-Maia' project when routes across the continents were opened to link the British Empire to the motherland during the period between the two wars. The work will also cover the important role that Croydon Airport played in the history of commercial aviation. The story concludes in 1940 with the formation of BOAC. This is an intriguing story and will represent a journey through time when it could take more than a week to travel by flying boat between Australia and the UK and when passengers flying the near East routes would stay the night at remote desert forts en-route for India.
Автор: Tim Bryan
Издательство: Ian Allan Publishing
Год издания: 2008
isbn: 0711033005
Количество страниц: 162
Язык: english
Формат: PDF (scan)
Whilst countless generations of small boys may have dreamed of becoming engine drivers, and the top-link driver on the great named expresses of the age of steam may have been the pinnacle of the railways, in terms of popular perception, these individuals could only have got there with the assistance of myriad other trades and after years of progressing through the more junior grades of footplate staff. From the humble junior porter through to the chairman of the board, the railways employed a vast array of different trades, all of whom were essential in keeping the trains running. Some of these jobs, such as that of the track gangs, are still an important part of the maintenance of the modern railway, but many others, such as blacksmiths, have now disappeared.
Автор: Mark Wegman
Издательство: Voyageur Press
Год издания: 2008
isbn: 0760334757
Количество страниц: 161
Язык: english
Формат: PDF (scan)
The period from the 1890s to the mid-1950s is generally considered the “golden era” of passenger rail travel in America. It was a time of celebrated locomotives and luxurious passenger service, a time when rail technology saw its greatest advances and railroads became the nation’s favored mode of transportation. These glory years come alive in American Passenger Trains and Locomotives Illustrated, 1889–1971. For this volume, author and illustrator Mark Wegman has researched original railroad drawings and in some cases even paint chips to render more than 160 profiles, front and top views, and interior layouts depicting the steam, diesel, and electric locomotives, along with passenger cars, of three dozen of the nation’s most celebrated trains of the golden age. Accompanying the author’s drawings are histories of each train, period photographs, postcards, menus, luggage stickers, vintage print ads, and detailed captions. The book is a lavishly appointed journey back in time to the bygone heyday of passen
Автор: Сухин Антон
Издательство: Интернет-издание
Год издания: 2012
Количество страниц: 11
Язык: русский
Формат: FB2
Изготавливая собственноручно сабвуфер, мы получаем возможность настроить звучание низкочастотного динамика под требуемые задачи, будь то "музыкальная" система, либо достижение максимального звукового давления.
Автор: Dan Linehan
Издательство: Zenith Press
Год издания: 2011
isbn: 0760338159, 9780760338155
Количество страниц: 162
Язык: english
Формат: PDF (scan)
Years ago, Burt Rutan told a reporter for Popular Mechanics, “If we make a courageous decision like the goal and program we kicked off for Apollo in 1961, we will see our children or grandchildren in outposts on other planets.” Legendary science-fiction writer Arthur C. Clark would later recall Rutan’s quote in a piece he wrote about SpaceShipOne and comment, “Fortunately, we need not rely solely on governments for expanding humanity’s presence beyond the Earth.” Burt Rutan’s Race to Space showcases Rutan’s herculean efforts to do just that. Smithsonian’s Air and Space Museum displays his most celebrated achievements, including SpaceShipOne, which won the coveted $10 million Ansari X Prize for private spaceflight; Voyager, which hangs with SpaceShipOne in the Milestones of Flight gallery; the Virgin Atlantic GlobalFlyer; and the VariEze. His many aerospace innovations preceding his most recently conceived designs, SpaceShipTwo and WhiteKnightTwo, chronicle a progressive, step-by-step attempt to break barriers with engineering know-how and a wondrous imagination, all the while remaining on the forefront of the burgeoning private spaceflight industry. Rutan’s X Prize triumph and subsequent spacecraft designs are not a beginning, nor an end, but are steps in Burt Rutan’s continuing adventure to expand humanity’s presence beyond the Earth and into space.
Автор: Dan Linehan
Издательство: Zenith Press
Год издания: 2011
isbn: 0760339880, 9780760339886
Количество страниц: 160
Язык: english
Формат: PDF (scan)
This book chronicles the development of the world’s first commercial manned space program. With ample illustrations, photographs, and behind-the-scenes information, SpaceShipOne takes readers from the project’s conception and design to the deals that brought together Scaled Composites’ Burt Rutan and Virgin Airlines’ Sir Richard Branson to the plans for building a fleet of commercial suborbital spaceships and launch aircraft. Author Dan Linehan, who was there at the launch, lets readers in on the drama and details behind the making of spaceships that will take twenty-first-century tourists to the final frontier.
Автор: Joe Welsh, Bill Howes
Издательство: Voyageur Press
Год издания: 2010
isbn: 0760335877, 9780760335871
Количество страниц: 178
Язык: english
Формат: PDF (scan)
One of America's greatest business enterprises, the Pullman Company provided outstanding service aboard a vast fleet of railroad passenger cars that could be found in almost every nook and cranny of the United States. This illustrated history examines Pullman's diverse fleet, from its spectacular custom-built wooden cars of the nineteenth century to steel heavyweight cars in the prewar years and on into the lightweight streamlined era. Author Joe Welsh includes period photos, many in rare color, as well as car diagrams and ads that help trace the development, composition, and evolution of the historically and culturally significant Pullman fleet, including the gamut of sleeper, parlor, and restaurant cars. This is a fitting tribute to the former cultural icons aboard which strode giants of American life, such as Babe Ruth and Clark Gable, as well as first-time travelers from small-town America.
Автор: Крянин И.Р.
Издательство: Машгиз
Год издания: 1958
Количество страниц: 208
Язык: русский
Формат: PDF
Книга посвящается проблемам, связанным с изысканием материалов для лопастей мощных гидротурбин. В ней освещаются вопросы кавитационной эрозии материалов, основные положения комплексной оценки для изыскания и выбора металла, а также широкие исследования строения и свойств стали трех марок в крупных фасонных отливках. Книга предназначена для инженерно-технических работников машиностроительных заводов, гидроэлектростанций и научно-исследовательских институтов, занимающихся вопросами гидротурбиностроения, а также для студентов высших технических учебных заведений.
Оглавление: Особенности работы лопастей и основные положения для выбора материалов; Изыскание возможности улучшения хромистой стали, применяемой для лопастей; Исследование и выбор рационального состава медистой стали; Изыскание и исследование материалов для биметаллических лопастей; Промышленное освоение новых марок стали для лопастей гидротурбин
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