One of the greatest accomplishments in the history of cryptography occurred in 1940 when a Swedish mathematician broke the German code used for strategic military communications. This story has all the elements of a classic thriller: a desperate wartime situation; a moody and secretive mathematical genius with a talent for cryptography; and a stunning mathematical feat, mysterious to this day. Arne Beurling, the man who inherited Einstein's office at Princeton's Institute for Advanced Study, was the figure who played this role at a crucial moment in world history. The author, Bengt Beckman, for many years was the head of the cryptanalysis department of the Swedish signal intelligence agency. He has crafted a book that a reader at any level of mathematical sophistication will thoroughly enjoy. It will appeal to a broad audience of readers, from historians and biography buffs to mathematicians to anyone with a passing interest in cryptology and cryptanalysis.
失去的胜利: 冯。曼斯坦元帅战时回忆录
Machinists (front, left to right) S. Harp, M. Rorex, L. Romanowski, E. Dukes; (rear, left to right) G. Ellenburg, V. Siebal, H. Kraft, D. Blumthal, J. McDonald. Second Division (front, left to right) J. Staton, P. Macciocca,.
Combat Engineer: The World War II Experiences of William J. Venner
Hodges' aides, Major William C. Sylvan and Captain Francis G. Smith Jr., recorded daily entries, which Hodges reviewed and approved.
... British Policy towards Wartime Resistance in Yugoslavia ( 1975 ) C Babington Smith , Evidence in Camera ( 1958 ) E ... Ultra in the West ( 1979 ) G Bertrand , Enigma ou la plus grande Enigme de la Guerre ( Paris , 1973 ) G Bloch ...
Duty Free: Fleet Air Arm Days
During their service they flew almost daily against targets like Ploesti, Blechammer, and Vienna. This is their history as told by daily records, personal stories and interviews with the men who served with the 464th.
Alec swung his rifle in his direction but even as he fired the soldier hurled the stick - bomb up the hill . It exploded with a deafening roar which sent snow and splintered stone in all directions . When the smoke cleared they sat ...
As a 2nd Lieutenant , Royal Engineers , he was in both the advance to and the retreat from Mons in 1914. Seconded to the Royal Flying Corps , 1915. Major , commanding 16 Squadron , 1917 ( working for the Canadian Corps , then carrying ...
Dans un climat de violence meurtrière, de tension raciale, de trahison, Capitaine Kidd retrouvera la paix dans l'obscurité d'une salle de bal.