Автор: Jan Guichelaar Название: Willem de Sitter ISBN: 3030074862 ISBN-13(EAN): 9783030074869 Издательство: Springer Рейтинг: Цена: 6288.00 р. Наличие на складе: Поставка под заказ.
Описание: This is a thorough, very readable and excellently illustrated biography of Willem de Sitter (1872-1934), one of the most influential astronomers of his time, and also a co-author and correspondent of Einstein. Authored by a physicist and skilled writer, the book gives a beautiful and accessible description of the physics debated by Einstein and de Sitter, as well as the latter's alternative cosmological model, later known as the De Sitter Universe. But this is just part of a fascinating and varied life story involving numerous contributions to astronomy, as well as many places and personalities of early 20th century physics. The book will appeal to all those interested in astronomy and physics and their history.
Автор: Yan Mu-Lin Название: De Sitter Invariant Special Relativity ISBN: 9814618705 ISBN-13(EAN): 9789814618700 Издательство: World Scientific Publishing Рейтинг: Цена: 11563.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Einstein`s Special Relativity (E-SR) is the cornerstone of physics. De Sitter invariant SR (dS/AdS-SR) is a natural extension of E-SR, hence it relates to the foundation of physics.
Автор: Ignazio Licata; Leonardo Chiatti; Elmo Benedetto Название: De Sitter Projective Relativity ISBN: 3319522701 ISBN-13(EAN): 9783319522708 Издательство: Springer Рейтинг: Цена: 7685.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This book presents the Projective approach to de Sitter Relativity. In this volume a systematic presentation is given of the De Sitter Projective relativity, with the recent developments in projective general relativity and quantum cosmology.
Описание: More than two years in the writing, this book is the warts-and-all story of the birth, career and death of the South African Defence Force’s 61 Mechanised Battalion Group (1979-2005) - generally acknowledged as the best fighting unit in Africa in its time. '61 Mech' was structured as a combined-arms unit with integral infantry, armoured and artillery components – the first in Africa – and arduously trained in a fast-moving mobile warfare doctrine which was not based on adapted European tactics, but was specifically designed for fighting modern bush wars in the forbiddingly difficult African battle-space. It was mounted in various versions of the Ratel armoured fighting vehicle, which was locally designed for African campaigning in frequently indescribable terrain conditions, and whose cross-country mobility and heavy firepower provided the means for applying the new doctrine. Backing it up were heavy weapons of local design, such as the world-class G-5 155mm artillery piece - then the longest-ranged medium gun in the world - and its huge self-propelled wheeled version: the G-6. Led by some of the brightest officers in the army, '61 Mech' played a major role in the often hard-fought incursions into Angola between 1978 and 1988 and won all its battles - even though the South Africans were always vastly outnumbered by the armed forces of Angola, with their abundant Soviet weaponry and Russian and Cuban advisors (and usually with an unfavourable air situation). Written in an easy-to-read narrative style by two veteran military authors, the book includes many personal accounts by officers and men of '61 Mech' - some of them in harrowing detail - and describes the preparations for the various operations and the ongoing evolution of both the doctrine and the weaponry and equipment; but it also covers the broader context, including revealing glimpses into the hitherto almost unknown Angolan/Soviet/Cuban side of the conflict. Among other things, it explains how and why the SADF became involved in the struggle against the South West African People’s Organisation; pin-points for the first time the moment when the counter-insurgency campaign in SWA/Namibia became entangled with the Angolan Civil War; and objectively analyses the much-debated question of whether there was ever a 'Battle for Cuito Cuanavale'. It is also salted with short snippets of information which help to make it an entertaining read for people from anywhere in the world. Backing up the narrative are many specially-drawn maps and a large number of photographs - of which most are not generic, but directly related to the events in the narrative. For anyone needing a single blueprint on how to fight a successful conventional war in Africa, this is the book to read.
Автор: Floor, Willem M. Название: Persian gulf ISBN: 1933823437 ISBN-13(EAN): 9781933823430 Издательство: Неизвестно Рейтинг: Цена: 9196.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Provides new evidence from a range of leading scholars showing that teachers become more effective when they work in organisations that support them in comprehensive and coordinated ways. The studies featured in the book suggest an alternative approach to enhancing teacher quality: creating conditions and school structures that facilitate the transmission and sharing of knowledge among teachers.
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