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X, Y and Z

X, Y and Z PDF Author: Dermot Turing
Publisher: The History Press
ISBN: 075098967X
Category : Biography & Autobiography
Languages : en
Pages : 369

Book Description
December, 1932 In the bathroom of a Belgian hotel, a French spymaster photographs top-secret documents – the operating instructions of the cipher machine, Enigma. A few weeks later a mathematician in Warsaw begins to decipher the coded communications of the Third Reich and lays the foundations for the code-breaking operation at Bletchley Park. The co-operation between France, Britain and Poland is given the cover-name 'X, Y & Z'. December, 1942 It is the middle of World War Two. The Polish code-breakers have risked their lives to continue their work inside Vichy France, even as an uncertain future faces their homeland. Now they are on the run from the Gestapo. People who know the Enigma secret are not supposed to be in the combat zone, so MI6 devises a plan to exfiltrate them. If it goes wrong, if they are caught, the consequences could be catastrophic for the Allies. Based on original research and newly released documents, X, Y & Z is the exhilarating story of those who risked their lives to protect the greatest secret of World War Two.

X, Y and Z

X, Y and Z PDF Author: Dermot Turing
Publisher: The History Press
ISBN: 075098967X
Category : Biography & Autobiography
Languages : en
Pages : 369

Book Description
December, 1932 In the bathroom of a Belgian hotel, a French spymaster photographs top-secret documents – the operating instructions of the cipher machine, Enigma. A few weeks later a mathematician in Warsaw begins to decipher the coded communications of the Third Reich and lays the foundations for the code-breaking operation at Bletchley Park. The co-operation between France, Britain and Poland is given the cover-name 'X, Y & Z'. December, 1942 It is the middle of World War Two. The Polish code-breakers have risked their lives to continue their work inside Vichy France, even as an uncertain future faces their homeland. Now they are on the run from the Gestapo. People who know the Enigma secret are not supposed to be in the combat zone, so MI6 devises a plan to exfiltrate them. If it goes wrong, if they are caught, the consequences could be catastrophic for the Allies. Based on original research and newly released documents, X, Y & Z is the exhilarating story of those who risked their lives to protect the greatest secret of World War Two.

The Enigma of Reason

The Enigma of Reason PDF Author: Hugo Mercier
Publisher: Harvard University Press
ISBN: 0674368304
Category : Philosophy
Languages : en
Pages : 405

Book Description
“Brilliant...Timely and necessary.” —Financial Times “Especially timely as we struggle to make sense of how it is that individuals and communities persist in holding beliefs that have been thoroughly discredited.” —Darren Frey, Science If reason is what makes us human, why do we behave so irrationally? And if it is so useful, why didn’t it evolve in other animals? This groundbreaking account of the evolution of reason by two renowned cognitive scientists seeks to solve this double enigma. Reason, they argue, helps us justify our beliefs, convince others, and evaluate arguments. It makes it easier to cooperate and communicate and to live together in groups. Provocative, entertaining, and undeniably relevant, The Enigma of Reason will make many reasonable people rethink their beliefs. “Reasonable-seeming people are often totally irrational. Rarely has this insight seemed more relevant...Still, an essential puzzle remains: How did we come to be this way?...Cognitive scientists Hugo Mercier and Dan Sperber [argue that] reason developed not to enable us to solve abstract, logical problems...[but] to resolve the problems posed by living in collaborative groups.” —Elizabeth Kolbert, New Yorker “Turns reason’s weaknesses into strengths, arguing that its supposed flaws are actually design features that work remarkably well.” —Financial Times “The best thing I have read about human reasoning. It is extremely well written, interesting, and very enjoyable to read.” —Gilbert Harman, Princeton University

Piers Plowman and the Poetics of Enigma

Piers Plowman and the Poetics of Enigma PDF Author: Curtis A. Gruenler
Publisher: University of Notre Dame Pess
ISBN: 0268101655
Category : Literary Criticism
Languages : en
Pages : 636

Book Description
In this book, Curtis Gruenler proposes that the concept of the enigmatic, latent in a wide range of medieval thinking about literature, can help us better understand in medieval terms much of the era’s most enduring literature, from the riddles of the Anglo-Saxon bishop Aldhelm to the great vernacular works of Dante, Chaucer, Julian of Norwich, and, above all, Langland’s Piers Plowman. Riddles, rhetoric, and theology—the three fields of meaning of aenigma in medieval Latin—map a way of thinking about reading and writing obscure literature that was widely shared across the Middle Ages. The poetics of enigma links inquiry about language by theologians with theologically ambitious literature. Each sense of enigma brings out an aspect of this poetics. The playfulness of riddling, both oral and literate, was joined to a Christian vision of literature by Aldhelm and the Old English riddles of the Exeter Book. Defined in rhetoric as an obscure allegory, enigma was condemned by classical authorities but resurrected under the influence of Augustine as an aid to contemplation. Its theological significance follows from a favorite biblical verse among medieval theologians, “We see now through a mirror in an enigma, then face to face” (1 Cor. 13:12). Along with other examples of the poetics of enigma, Piers Plowman can be seen as a culmination of centuries of reflection on the importance of obscure language for knowing and participating in endless mysteries of divinity and humanity and a bridge to the importance of the enigmatic in modern literature. This book will be especially useful for scholars and undergraduate students interested in medieval European literature, literary theory, and contemplative theology.

The Parthenon Enigma

The Parthenon Enigma PDF Author: Joan Breton Connelly
Publisher: Vintage
ISBN: 0385350503
Category : History
Languages : en
Pages : 521

Book Description
Built in the fifth century b.c., the Parthenon has been venerated for more than two millennia as the West’s ultimate paragon of beauty and proportion. Since the Enlightenment, it has also come to represent our political ideals, the lavish temple to the goddess Athena serving as the model for our most hallowed civic architecture. But how much do the values of those who built the Parthenon truly correspond with our own? And apart from the significance with which we have invested it, what exactly did this marvel of human hands mean to those who made it? In this revolutionary book, Joan Breton Connelly challenges our most basic assumptions about the Parthenon and the ancient Athenians. Beginning with the natural environment and its rich mythic associations, she re-creates the development of the Acropolis—the Sacred Rock at the heart of the city-state—from its prehistoric origins to its Periklean glory days as a constellation of temples among which the Parthenon stood supreme. In particular, she probes the Parthenon’s legendary frieze: the 525-foot-long relief sculpture that originally encircled the upper reaches before it was partially destroyed by Venetian cannon fire (in the seventeenth century) and most of what remained was shipped off to Britain (in the nineteenth century) among the Elgin marbles. The frieze’s vast enigmatic procession—a dazzling pageant of cavalrymen and elders, musicians and maidens—has for more than two hundred years been thought to represent a scene of annual civic celebration in the birthplace of democracy. But thanks to a once-lost play by Euripides (the discovery of which, in the wrappings of a Hellenistic Egyptian mummy, is only one of this book’s intriguing adventures), Connelly has uncovered a long-buried meaning, a story of human sacrifice set during the city’s mythic founding. In a society startlingly preoccupied with cult ritual, this story was at the core of what it meant to be Athenian. Connelly reveals a world that beggars our popular notions of Athens as a city of staid philosophers, rationalists, and rhetoricians, a world in which our modern secular conception of democracy would have been simply incomprehensible. The Parthenon’s full significance has been obscured until now owing in no small part, Connelly argues, to the frieze’s dismemberment. And so her investigation concludes with a call to reunite the pieces, in order that what is perhaps the greatest single work of art surviving from antiquity may be viewed more nearly as its makers intended. Marshalling a breathtaking range of textual and visual evidence, full of fresh insights woven into a thrilling narrative that brings the distant past to life, The Parthenon Enigma is sure to become a landmark in our understanding of the civilization from which we claim cultural descent.

Enigma

Enigma PDF Author: Peter Milligan
Publisher: Vertigo
ISBN: 9781401251314
Category : COMICS & GRAPHIC NOVELS
Languages : en
Pages : 0

Book Description
ENIGMA is a thought-provoking post-modern tale of self-discovery and sexual identity told against the backdrop of improbable super-heroes and villains. Michael Smith lives a meaningless life of routine and boredom. But when Enigma, his favorite childhood comic book hero, inexplicably comes to life, Smith finds himself on an obsessive crusade to uncover the secret behind his improbable existence. Teaming with Enigma's comic creator, Smith encounters an insanity-inducing psychopath, a brain-eating serial killer, and a suicide-inciting clown posse as his quest uncovers hidden truths about both his idol and himself. This new edition of the Vertigo classic is written by Peter Milligan (JUSTICE LEAGUE DARK, RED LANTERNS) with kinetic art by Duncan Fegredo (SHADE THE CHANGING MAN). Collects ENIGMA #1-8.

An Enigma in Language

An Enigma in Language PDF Author: Giulio Benedetti
Publisher:
ISBN: 9781616681555
Category : Programming languages (Electronic computers)
Languages : en
Pages : 0

Book Description
In this book, the author provides a brief introduction to a completely new theory in semantics, Operational Semantics (OS), which concerns the meanings of the basic linguistic elements that are indispensable for any linguistic expression, that is, mainly the "grammatical" words and, in the large number of languages that have a more or less rich morphology, almost all morphemes. OS differs significantly from other existing theories.

The Fourth Dimension

The Fourth Dimension PDF Author: Dayalanand Roy
Publisher: Brown Walker Press
ISBN: 1599426226
Category : Science
Languages : en
Pages : 202

Book Description
Einstein shocked the world by revealing that time can be different for different observers. This book offers a possible explanation of why it is so. It offers a never-attempted-before approach to understand the secret of time. As we all know, there is an intimate relationship between time and age of objects. But what is this relationship? The author dives deep into the possible relationships between time and age of objects- animate or inanimate- and, in turn, emerges with a novel concept of time- time is a measurement of age. The book proposes that time is acquired by age, not required for it; and thus, time is an acquired property of objects. The author also proposes that just as length, width and height are the measurements of physical extensions of objects (their three spatial dimensions) and not any independent entities; time too, being the measurement of their age, is not independent of objects. In this sense, time seems to be the fourth dimension of objects instead of space. The book attempts to justify its hypothesis by testing its compatibility with Theory of Relativity. Also discussed is the meaning of the so called passage of time and the arrow of time on the basis of the model of time proposed here. The meaning of the much debated concept of time-travel is thoroughly discussed here and it is proposed that this concept, in the sense that we usually take, is a myth. Even if you can manage to reach your future by overcoming all technological limitations (as we all know, theory of relativity allows it), all your friends will be there with you, witnessing the same future. The only difference will be- your clocks will not agree with those of your friends.

The Enigma of Arrival

The Enigma of Arrival PDF Author: V. S. Naipaul
Publisher: Vintage
ISBN: 0307744035
Category : Fiction
Languages : en
Pages : 448

Book Description
The Nobel Prize-winning author distills his wide experience of countries and peoples into a moving account of the rites of passage endured by all people and all communities undergoing change or decay. • "Naipaul's finest work." —Chicago Tribune "A subtly incisive self-reckoning." —The Washington Post Book World The story of a writer’s singular journey – from one place to another, and from one state of mind to another. At the midpoint of the century, the narrator leaves the British colony of Trinidad and comes to the ancient countryside of England. And from within the story of this journey – of departure and arrival, alienation and familiarity, home and homelessness – the writer reveals how, cut off from his “first” life in Trinidad, he enters a “second childhood of seeing and learning.” Clearly autobiographical, yet woven through with remarkable invention, The Enigma of Arrival is as rich and complex as any novel we have had from this exceptional writer. "The conclusion is both heart-breaking and bracing: the only antidote to destruction—of dreams, of reality—is remembering. As eloquently as anyone now writing, Naipaul remembers." —Time "Far and away the most curious novel I've read in a long time, and maybe the most hypnotic book I've ever read." —St. Petersburg Times

Alan Turing: The Enigma

Alan Turing: The Enigma PDF Author: Andrew Hodges
Publisher: Princeton University Press
ISBN: 1400865123
Category : Biography & Autobiography
Languages : en
Pages : 777

Book Description
A NEW YORK TIMES BESTSELLER The official book behind the Academy Award-winning film The Imitation Game, starring Benedict Cumberbatch and Keira Knightley It is only a slight exaggeration to say that the British mathematician Alan Turing (1912–1954) saved the Allies from the Nazis, invented the computer and artificial intelligence, and anticipated gay liberation by decades—all before his suicide at age forty-one. This New York Times bestselling biography of the founder of computer science, 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. Capturing both the inner and outer drama of Turing’s life, Andrew Hodges tells how Turing’s revolutionary idea of 1936—the concept of a universal machine—laid the foundation for the modern computer and how Turing brought the idea to practical realization in 1945 with his electronic design. The book also tells how 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. At the same time, this is the tragic account of a man who, despite his wartime service, 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. The inspiration for a major motion picture starring Benedict Cumberbatch and Keira Knightley, Alan Turing: The Enigma is a gripping story of mathematics, computers, cryptography, and homosexual persecution.

Enigma

Enigma PDF Author: Robert Ferguson
Publisher: Macmillan
ISBN: 0374520933
Category : Biography & Autobiography
Languages : en
Pages : 474

Book Description