Search:

Results 31 to 40 of 49 | « previous |

Geniuses at war : Bletchley Park, Colossus, and the dawn of the digital age / by Price, David A.(David Andrew),1961-author.(CARDINAL)725784;
Includes bibliographical references (pages 191-231) and index.The right type of recruit -- The palace coup -- Breaking Tunny -- The soul of a new machine -- Decrypting for D-Day -- After the war -- Epilogue: Turing's child machine, 1968."Geniuses at War is the dramatic, untold story of the brilliant team who built the world's first digital electronic computer at Bletchley Park, during a critical time in World War II. Decoding the communication of the Nazi high command was imperative for the success of the Allied invasion of Normandy. The Nazi missives were encrypted by the "Tunny" cipher, a code that was orders of magnitude more difficult to crack than the infamous Enigma code. But Tommy Flowers, a maverick English working-class engineer, devised the ingenious, daring, and controversial plan to build a machine that could think at breathtaking speed and break the code in nearly real time. Together with the pioneering mathematician Max Newman and Enigma code-breaker Alan Turing, Flowers and his team produced--against the odds, the clock, and a resistant leadership--Colossus, the world's first digital electronic computer, the machine that would help bring the war to an end. With fascinating detail and illuminating insight, David A. Price's Geniuses at War tells, for the first time, the mesmerizing story of the great minds behind Colossus, and chronicles their remarkable feats of engineering genius which ushered in the dawn of the digital age"--
Subjects: Cryptography; Lorenz cipher system.; World War, 1939-1945;

The Enigma game / by Wein, Elizabeth,author.(CARDINAL)339463;
Ages 12-18.Grades 10-12.Includes bibliographical references.Told in multiple voices, fifteen-year-old Jamaican Louisa Adair uncovers an Enigma machine in the small Scottish village where she cares for an elderly German woman, and helps solve a puzzle that could turn the tide of World War II.Accelerated Reader ARA Junior Library Guild selection.A German soldier risks his life to drop off the sought-after Enigma Machine to British Intelligence, hiding it in a pub in a small town in northeast Scotland. Louisa Adair, a teen girl hired to look after the pub owner's elderly, German-born aunt, Jane Warner, finds it but doesn't report it. Flight-Lieutenant Jamie Beaufort-Stuart intercepts a signal but can't figure it out. Ellen McEwen, volunteer at the local airfield, acts as the go-between and messenger, after Louisa involves Jane in translating. The planes under Jamie's command seem charmed, and the four are loathe to give up the machine. Even after Elisabeth Lind from British Intelligence arrives, even after the Germans start bombing the tiny town.--
Subjects: Cryptologic fiction.; Historical fiction.; War fiction.; Young adult fiction.; Orphans; Jamaicans; World War, 1939-1945; Enigma cipher system;

The secret war : spies, ciphers, and guerrillas 1939-1945 / by Hastings, Max,author.(CARDINAL)141562;
Includes bibliographical references (pages 579-585) and index.Before the deluge. Seekers after truth ; The British: gentlemen and players ; The Russians: temples of espionage -- The storm breaks. The "fiction flood" ; Shadowing Canaris -- Miracles take a little longer: Bletchley. "Tips" and "cillis" ; Flirting with America -- The dogs that barked. "Lucy's" people ; Sorge's warnings ; The orchestra plays ; The deaf man in the Kremlin -- Divine winds. Mrs Ferguson's tea set ; The Japanese ; The man who won Midway -- Muddling and groping: the Russians at war. Centre mobilises ; The end of Sorge ; The second source ; Gourevitch takes a train -- Britain's secret war machine. The sharp end ; The brain ; At sea -- 'Mars': the bloodiest deception. Gehlen ; "Agent Max" -- The orchestra's last concert -- Guerrilla. Resisters and raiders ; SOE -- Hoover's G-men, Donovan's wild men. Adventurers ; Ivory towers ; Allen Dulles: talking to Germans -- Russia's partisans: terrorising both sides -- Islands in the storm. The Abwehr's Irish jig ; No man's land -- A little help from their friends. "It stinks, but somebody has to do it" ; American traitors -- The knowledge factories. Agents ; The jewel of sources ; Production lines ; Infernal machines -- 'Blunderhead': the English patient -- Eclipse of the Abwehr. Hitler's Bletchleys ; "Cicero" ; The fantasists ; The "good" Nazi -- Battlefields. Wielding the Ultra wand ; Suicide spies ; Tarnished triumph -- Black widows, few white knights. Fighting Japan ; Fighting each other ; The enemy: groping in the dark -- 'Enormoz' -- Decoding victory.From one of the foremost historians of the period and the acclaimed author of Inferno and Catastrophe: 1914, The Secret War is a sweeping examination of one of the most important yet underexplored aspects of World War II—intelligence—showing how espionage successes and failures by the United States, Britain, Russia, Germany, and Japan influenced the course of the war and its final outcome. Spies, codes, and guerrillas played unprecedentedly critical roles in the Second World War, exploited by every nation in the struggle to gain secret knowledge of its foes, and to sow havoc behind the fronts. In "The Secret War," Max Hastings presents a worldwide cast of characters and some extraordinary sagas of intelligence and resistance, to create a new perspective on the greatest conflict in history.
Subjects: World War, 1939-1945; World War, 1939-1945; World War, 1939-1945; World War, 1939-1945; Intelligence service; Espionage;

The Enigma girls : how ten teenagers broke ciphers, kept secrets, and helped win World War II / by Fleming, Candace,author.(CARDINAL)341516;
Includes bibliographical references (page 333-350) and index.Introduction -- 1939-1945: War and Y -- 1940: Secrets, secrets, and more secrets -- 1941: Ciphers, spies, and a mysterious summons -- 1942: Bombes and codebooks -- 1943: Slogging, grinding war work -- 1944: D-Day and its secret helpers -- 1945: War's end and the years after."You are to report to Station X at Bletchley Park, Buckinghamshire, in four days time ... That is all you need to know." This was the terse telegram hundreds of young women throughout the British Isles received in the spring of 1941, as World War II raged. As they arrived at Station X, a sprawling mansion in a state of disrepair surrounded by Spartan-looking huts with little chimneys coughing out thick smoke--these young people had no idea what kind of work they were stepping into. Who had recommended them? Why had they been chosen? Most would never learn all the answers to these questions. Bletchley Park was a well-kept secret during World War II, operating under the code name Station X. The critical work of code-cracking Nazi missives that went on behind its closed doors could determine a victory or loss against Hitler's army. Amidst the brilliant cryptographers, flamboyant debutantes, and absent-minded professors working there, it was teenaged girls who kept Station X running. Some could do advanced math, while others spoke a second language. They ran the unwieldy bombe machines, made sense of wireless sound waves, and sorted the decoded messages. They were expected to excel in their fields and most importantly: know how to keep a secret."--Ages 7-11.Grades 4-6.870LAccelerated Reader AR
Subjects: Creative nonfiction.; Biographies.; Government Code and Cypher School (Great Britain); Great Britain. Royal Navy. Women's Royal Naval Service (1939-1993); World War, 1939-1945; Enigma cipher system; World War, 1939-1945;

The Enigma affair [sound recording] : a novel / by Lovett, Charlie,1962-author.; Zanzarella, Nicol,narrator.(CARDINAL)619537;
Read by Nicol Zanzarella.When Patton Harcourt comes under fire one morning, she has no choice but to trust the mysterious assassin who shows up. Fleeing a pair of German thugs, the two form an unlikely alliance as they try to decipher a seventy-five-year-old message encoded by Nazis on an Enigma machine. Traveling to England, they enlist the aid of an Enigma expert. The trio soon finds themselves on the run, pursued by both the police and a white supremacist trying to unlock the secret of Himmler's research into alchemy.
Subjects: Audiobooks.; Historical fiction.; Thrillers (Fiction); Librarians; Assassins; Enigma cipher system; White nationalism; Alchemy;

How to be a math genius: your brilliant brain and how to train it / by Goldsmith, Mike,1962-(CARDINAL)420964; Burnett, Seb.(CARDINAL)423910;
Math brain. Meet your brain -- Math skills --Learning math -- Brain vs. machine -- Problems with numbers -- Women and math -- Seeing the solution -- Inventing numbers. Learning to count -- Number systems -- Big zero -- Pythagoras -- Thinking outside the box -- Number patterns -- Calculation tips -- Archimedes -- Math that measures -- How big? How far? -- The size of the problem -- Magic numbers. Seeing sequences -- Pascal's triangle -- Magic squares -- Missing numbers -- Karl Gauss -- Infinity -- Numbers with meaning -- Number tricks -- Puzzling primes -- Shapes and space. Triangles -- Shaping up -- Shape shifting -- Round and round -- The third dimension -- 3-D shape puzzles -- 3-D fun -- Leonhard Euler -- Amazing mazes -- Optical illusions -- Impossible shapes -- A world of math. Interesting times -- Mapping -- Isaac Newton -- Probability -- Displaying data -- Logic puzzles and paradoxes -- Breaking codes -- Codes and ciphers -- Alan Turning -- Algebra -- Brainteasers -- Secrets of the universe -- The big quiz.
Subjects: Mathematical recreations; Mathematics;

Train your brain to be a math genius / by Goldsmith, Mike,1962-(CARDINAL)420964; Burnett, Seb.(CARDINAL)423910;
A world of math -- Math brain. Meet your brain -- Math skills --Learning math -- Brain vs. machine -- Problems with numbers -- Women and math -- Seeing the solution -- Inventing numbers. Learning to count -- Number systems -- Big zero -- Pythagoras -- Thinking outside the box -- Number patterns -- Calculation tips -- Archimedes -- Math that measures -- How big? How far? -- The size of the problem -- Magic numbers. Seeing sequences -- Pascal's triangle -- Magic squares -- Missing numbers -- Karl Gauss -- Infinity -- Numbers with meaning -- Number tricks -- Puzzling primes -- Shapes and space. Triangles -- Shaping up -- Shape shifting -- Round and round -- The third dimension -- 3-D shape puzzles -- 3-D fun -- Leonhard Euler -- Amazing mazes -- Optical illusions -- Impossible shapes -- A world of math. Interesting times -- Mapping -- Isaac Newton -- Probability -- Displaying data -- Logic puzzles and paradoxes -- Breaking codes -- Codes and ciphers -- Alan Turing -- Algebra -- Brainteasers -- Secrets of the universe -- The big quiz.
Subjects: Mathematical recreations; Mathematics;

Alan Turing : the enigma : the book that inspired the film The imitation game / by Hodges, Andrew.(CARDINAL)733494; Hofstadter, Douglas R.,1945-(CARDINAL)721141;
Includes bibliographical references and index.ONE: The logical -- Esprit de Corps: to 13 February 1930 -- The spirit of truth: to 14 April 1936 -- New men: to 3 September 1939 -- The relay race: to 10 November 1942 -- Bridge passage: to 1 April 1943 -- TWO: The physical -- Running up: to 2 September 1945 -- Mercury delayed: to 2 October 1948 -- The Greenwood tree: to 7 February 1952 -- On the beach: to 7 June 1954 -- Postscript.A gripping story of mathematics, science, computing, war history, cryptography, and homosexual persecution and liberation. Hodges tells how Turing's revolutionary idea of 1936-- the concept of a universal machine-- laid the foundation for the modern computer. Turing brought the idea to practical realization in 1945 with his electronic design. This work was directly related to Turing's leading role in breaking the German Enigma ciphers during World War II, a scientific triumph that was critical to Allied victory in the Atlantic. Despite his wartime service, Turing was eventually arrested, stripped of his security clearance, and forced to undergo a humiliating treatment program-- all for trying to live honestly in a society that defined homosexuality as a crime. This New York Times bestselling biography of the founder of computer science and artificial intelligence, with a new preface by the author that addresses Turing's royal pardon in 2013, is the definitive account of an extraordinary mind and life. --
Subjects: Biographies.; Turing, Alan, 1912-1954.; Mathematicians; Gay men; Gay men.;

The Enigma affair / by Lovett, Charlie,1962-author.(CARDINAL)770025;
When small-town librarian Patton Harcourt comes under fire one morning while making profiteroles, she has no choice but to trust the mysterious assassin, Nemo, who shows up in her kitchen. Fleeing a pair of German thugs, the two form an unlikely alliance as they try to decipher a seventy-five-year-old message encoded by Nazis on an Enigma machine. Traveling to Bletchley Park in England, they enlist the aid of Patton's old flame, Ruthie Drinkwater, an expert on Enigma. The trio soon finds themselves on the run, pursued by both the police and Ingrid Weiss, a white supremacist trying to unlock the secret of Heinrich Himmler's research into alchemy. If Patton, Nemo, and their cohorts can survive a host of dangers -- from trained killers to explosions to imprisonment -- they might be able to prevent Weiss from acquiring untold wealth to promote her racist agenda.
Subjects: Thrillers (Fiction); Fiction.; Novels.; Librarians; Assassins; Enigma cipher system;

Phantom fleet : the hunt for Nazi submarine U-505 and World War II's most daring heist / by Rose, Alexander,1971-author. (CARDINAL)422642;
Includes bibliographical references (pages 317-330) and index."Shortly before noon on June 4, 1944, the sonar operator on a destroyer prowling off the coast of West Africa heard a sharp, metallic ping. The sound could mean only one thing: the German submarine that their hunter-killer group had been tracking, U-505, was lurking somewhere below. The ensuing struggle between exhausted hunter and venomous prey would make history when American sailors boarded an enemy warship at sea for the first time since the War of 1812. That day's victory was the culmination of an unrelenting campaign against the Nazi submarine threat by the U.S. Navy's 'Tenth Fleet'--a mysterious unit that could predict the locations and movement of Hitler's U-boats. Run by Commander Kenneth Knowles, Tenth Fleet had guided Captain Dan Gallery to U-505; to repay the favor, Gallery was going to steal an Enigma machine for him"--
Subjects: U-505 (Submarine); United States. Navy; United States. Navy. Fleet, 10th.; World War, 1939-1945; World War, 1939-1945; World War, 1939-1945; Enigma cipher system.; World War, 1939-1945;

Results 31 to 40 of 49 | « previous |