27 Ergebnisse - Zeige 21 von 27.

Die allgemeine Relativitästheorie lässt sich nur mit Hilfe des Tensorkalküls formulieren. Diesen lernte Einstein 1912 in Form des absoluten Differentialkalküls kennen. Dessen Schöpfer war Gregorio Ricci, dem zusammen mit Sophus Lie und anderen der Ausbau der Theorie der Differentialinvarianten gelang. Der absolute Differentialkalkül passte zur allgemeinen Relativitätstheorie wie ein Schlüssel zum Schloss: der in den Jahren 1884-92 von Ricci en...

While the most conspicuous components of the US Army Air Forces in World War II (1939-1945) were the air units, there were also hundreds of ground units and organisations. Besides assigned military personnel the AAF also employed thousands of civilians. Many unique outfits were designed to meet the AAF's special needs. Uniformed civilians also possessed a variety of unique uniforms and insignia. These general issue and specific uniforms are th...

The Praetorian Guard of Imperial Rome was the power behind the throne, with the ability to make or break an emperor. As the main body of troops in Rome, they were the emperor's instrument to discourage plotting and rebellion and to crush unrest. The emperor's most immediate line of defence, they could also be his most deadly enemies. This book details the organization, dress and history of the Praetorian Guard from the time of the late Republi...

Pamela Allen is a phenomenon in the world of children¿s books. In twenty-four years she has produced thirty-three picture books, many of which have won prestigious awards and commendations both in Australia and overseas. She is the first illustrator to have won the Children¿s Book Council of Australia Picture Book of the Year Award two years running, for Who Sank the Boat? (1983) and Bertie and the Bear (1984). Some of Pamela¿s other awards in...

The text was originally published with other illustrations in 1983 by Harry N. Abrams Inc. Here it is repackaged with reproductions of over 65 paintings by Francoise Gilot (the paintings were created independently not expressly for the book). Neither the text nor the artwork are conventional explic

The three plays gathered in this volume are among Bertolt Brecht's most remarkable, the best-known is Jungle of Cities, here translated by the poet Anselm Hollo. Set in Chicago in a climate of rampant capitalism, it is the story of a savage battle waged between two men, whose relationship is at once homosexual and sadomasochistic and whose tightly choreographed hostility is a metaphor for their cultural surround.

Composed in 2 B.C., as "The I Ching revised and enlarged", The Elemental Changes is a divination manual providing a clear method for distinguishing alternative courses of action. Structured in 81 tetragrams (as opposed to the 64 hexagrams of the I Ching), the book offers much to the modern reader. Today in the West, The Elemental Changes is an essential tool for understanding the Tao as is operates in the Cosmos, in the minds of sages, and in ...