But there is one other crucial factor, which is much less well known. The same team had done it before. The truth is that many of those most closely involved in cracking the Enigma code – Alistair Denniston, Frank Birch, Dilly Knox – had wrestled with German naval codes for most of the First World War. By the end of the war they had been successfully cracking a new code every day, from their secret Room 40 at the Old Admiralty Building, in a London blacked out for Zeppelin Raids.The techniques they developed then, the ideas that they came to rely on, the people they came to trust, had been developed the hard way, under intense pressure and absolute secrecy during World War I. Before Enigma tells their story and explains how they managed to crack the supposedly indecipherable code. The book outlines the capture of the Magdeburg and the Hobart, discusses the use of cracked codes to bring German fleets to battle at Dogger Bank and Jutland, and focuses on individuals such as Winston Churchill and Admiral Sir Reginald ‘Blinker’ Hall and their importance in the development of a British naval code tradition. Praise for David Boyle ‘Exhilarating’ - Daily Mail David Boyle is a British author and journalist who writes mainly about history and new ideas in economics, money, business and culture. He lives in Crystal Palace, London. His books include Alan Turing: Unlocking the Enigma, Operation Primrose, Rupert Brooke: England’s Last Patriot, Peace on Earth: The Christmas Truce of 1914, Jerusalem: England’s National Anthem and Unheard Unseen: Warfare in the Dardanelles .Endeavour Press is the UK's leading independent digital publisher. For more information on our titles please sign up to our newsletter at www.endeavourpress.com. Each week you will receive updates on free and discounted ebooks. Follow us on Twitter: @EndeavourPress and on Facebook via http://on.fb.me/1HweQV7. We are always interested in hearing from our readers. Endeavour Press believes that the future is now.

    But amid the "dark" Middle Ages, the Abbasid Empire, which ruled the Middle East as well as much of Northern Africa and Central Asia from 750 to 1258, serves as a vitally important but often overlooked bridge between the ancient and modern worlds.The History and Achievements of the Islamic Golden Age is your opportunity to get to know the story and the accomplishments of this great period in human civilization. Taught by acclaimed lecturer Eamonn Gearon, these 24 remarkable lectures offer brilliant insights into an era too often overlooked by traditional history textbooks. You'll meet a wealth of scholars, scientists, poets, and philosophers who paved the way for the Renaissance and continue to affect our world in surprising ways.For instance, gain insights into:- The origins of the scientific method, along with the development of algebra, chemistry, physics, and astronomy as discrete fields of inquiry- The invention of the modern "teaching hospital" and a medical encyclopedia that served Europe for the next 600 years- The preservation and translation of the world's great literature, from the Hadith (or sayings of Muhammad) to the master works of Greece and Rome- Ontological philosophy that served future Jewish, Christian, and Muslim theologians concerned with the nature of God and the relationship between faith and reasonIt is nearly impossible to overstate the power and importance of this crucial 500-year history, headquartered in Baghdad but stretching around the world. While much of Europe was quietly passing the time, the Abbasid Empire was an international, multicultural hub of trade, travel, education, art, science, and much more.

    Illustrated in full colour.

    The epoch of the Crusades, of the rise of towns, and of the earliest bureaucratic states of the West, it saw the culmination of Romanesque art and the beginnings of Gothic; the emergence of the vernacular literatures; the revival of the Latin classics and of Latin poetry and Roman law; the recovery of Greek science, with its Arabic additions, and of much of Greek philosophy; and the origin of the first European universities. The twelfth century left its signature on higher education, on the scholastic philosophy, on European systems of law, on architecture and sculpture, on the liturgical drama, on Latin and vernacular poetry...

    What did they have to do with the rise of industrial power in Europe? Read Kim's story and find out! A novel set in Eric Flint's 1632 Universe.This story was previously serialized in the Grantville Gazette.

    Not until the nineteenth century would three men, armed with the best telescopes of their age, race to conquer this astronomical Everest. Parallax tells the fast-moving story of their contest, which ended in a dead heat. Against a sweeping backdrop filled with kidnappings, dramatic rescue, swordplay, madness, and bitter rivalry, Alan W. Hirshfeld brings to life the heroes -- and heroines -- of this remarkable chapter in history. Characters include the destitute boy plucked from a collapsed building who grew up to become the world's greatest telescope maker; the hot-tempered Dane whose nose was lopped off in a duel over mathematics; a merchant's apprentice forced to choose between the lure of money and his passion for astronomy; and the musician who astounded the world by discovering a new planet from his own backyard.Generously illustrated with period engravings and paintings, Parallax is an unforgettable ride through time and space.

    Over TWO thousand pages of Medieval Pagentry - purchase this limited edition set or read for free in KINDLE UNLIMITED! Where England and Wales meet among the dark and rolling hills of the Welsh Marches, romance is born. Powerful English and Scottish men and their Welsh brides come together in a limited edition bundle that is a must-have for your Le Veque library. Delight in the drama and passion of these highly rated, full-length border romances, including: Rise of the Defender: The greatest knight in Richard the Lionheart's realm assumes his post, and his bride, on the Welsh Marches. The Red Lion: A Highlander serving in Wales finds more than he bargained for in a Welsh warrior woman. Spectre of the Sword: A half-Welsh knight is charged with protecting the heir to the throne against those who wish to see her dead. Island of Glass: A big English knight and a fiery lass on her search for the Holy Grail. Netherworld: A seasoned English knight makes a bargain with the devil to assume his post at a bleak Welsh castle called Netherworld. The Welsh Marches never looked so dark and sexy. Get this collection before it's gone!

    First explicit statement of law of conservation of matter in chemical change; first modern list of chemical elements; more. Facsimile reprint of original (1790) Kerr translation. Introduction by Professor Douglas McKie.Introduction1 Of the formation & decomposition of aeriform fluids, of the combustion of simple bodies & the formation of acids 2 Of the combination of acids with salifiable bases & of the formation of neutral salts3 Description of the instruments & operations of chemistryAppendix

    You may find it for free on the web. Purchase of the Kindle edition includes wireless delivery.

    You may find it for free on the web. Purchase of the Kindle edition includes wireless delivery.

    The lens he invented was a brilliant feat of engineering that made lighthouses blaze many times brighter, farther, and more efficiently. Battling the establishment, his own poor health, and the limited technology of the time, Fresnel was able to achieve his goal of illuminating the entire French coast. At first, the British sought to outdo the new Fresnel-equipped lighthouses as a matter of national pride. Americans, too, resisted abandoning their primitive lamps, but the superiority of the Fresnel lens could not be denied for long. Soon, from Dunkirk to Saigon, shores were brightened with it.  The Fresnel legacy played an important role in geopolitical events, including the American Civil War. No sooner were Fresnel lenses finally installed along U.S. shores than they were drafted: the Union blockaded the Confederate coast; the Confederacy set about thwarting it by dismantling and hiding or destroying the powerful new lights.Levitt’s scientific and historical account, rich in anecdote and personality, brings to life the fascinating untold story of Augustin Fresnel and his powerful invention.

    Yet the reality of the cloud is embodied in thousands of massive data centers, any one of which can use as much electricity as a midsized town. Even all these data centers are only one small part of the cloud. Behind that cloud-shaped icon on our screens is a whole universe of technologies and cultural norms, all working to keep us from noticing their existence. In this book, Tung-Hui Hu examines the gap between the real and the virtual in our understanding of the cloud. Hu shows that the cloud grew out of such older networks as railroad tracks, sewer lines, and television circuits. He describes key moments in the prehistory of the cloud, from the game "Spacewar" as exemplar of time-sharing computers to Cold War bunkers that were later reused as data centers. Countering the popular perception of a new "cloudlike" political power that is dispersed and immaterial, Hu argues that the cloud grafts digital technologies onto older ways of exerting power over a population. But because we invest the cloud with cultural fantasies about security and participation, we fail to recognize its militarized origins and ideology. Moving between the materiality of the technology itself and its cultural rhetoric, Hu's account offers a set of new tools for rethinking the contemporary digital environment.

    Alvarez had the first glimmer of that amazing insight when he noticed something odd in a rock outcrop in central Italy. Alvarez now returns to that rich terrain, this time to take the reader on an excavation of the Earth's distant past. We encounter the volcanoes that formed the Seven Hills of Rome; the majestic limestone Apennine mountains that started to develop millions of years ago under water; the evidence that the Mediterranean Sea completely evaporated to a sunken desert, perhaps several times; and the proof that continental plates once overran one another to form the Alps. In Alvarez's telling, all major geologic episodes are as dramatic as the great impact that killed the dinosaurs, even when they happen over eons and without huge creatures to witness them.

    For almost 500 years, the masses have been thoroughly deceived by a cosmic fairy-tale of astronomical proportions. We have been taught a falsehood so gigantic and diabolical that it has blinded us from our own experience and common sense, from seeing the world and the universe as they truly are. Through pseudo-science books and programs, mass media and public education, universities and government propaganda, the world has been systematically brain-washed, slowly indoctrinated over centuries into the unquestioning belief of the greatest lie of all time. A multi-generational conspiracy has succeeded, in the minds of the masses, to pick up the fixed Earth, shape it into a ball, spin it in circles, and throw it around the Sun! The greatest cover-up of all time, NASA and Freemasonry's biggest secret, is that we are living on a plane, not a planet, that Earth is the flat, stationary center of the universe.