The Big Enigma often reaches the sublime in unforgettable passages that definitely do not seem to come from this world. Deeply moving and quite formidable thoughts succeed one another in endless continuity. This is an inspired book that can nurture one's mind and soul with genuine greatness and knowledge - and a life changer to many readers. Denis pays tribute to his Celtic and Gallic ancestors, letting his text flow with abandon, in the light of Spiritism.

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.

Fun for the whole family, the book contains more than 100 superb puzzles. Merlin the Magician, Avalon, King Arthur, and other mythical people and places feature prominently.

In 1963 a schoolboy browsing in his local library stumbled across a great mathematical problem: Fermat's Last Theorem, a puzzle that every child can now understand, but which has baffled mathematicians for over 300 years. Aged just ten, Andrew Wiles dreamed he would crack it.

This Book of Riddles is loaded with new and classic mind bending logical conundrums, number puzzles, visual tricks, and more fun for the whole family.

• Analyzes ancient Coptic-Egyptian texts and evidence from astronomy and archaeology to show how the Big Void may be a grand “Hall of Ancestors” • Explores the controversy surrounding the discovery of the Big Void and debunks many of the theories regarding the purpose of this massive new “chamber” • Reveals how the Great Pyramid was built by Khufu as an indestructible “recovery vault” to help Egyptian civilization rebuild after an anticipated cataclysm In November 2017, an international team of more than 30 scientists published the results of their two-year-long Great Pyramid research project in the journal Nature. Using an advanced imaging technique known as muon radiography, three groups working independently from each other discovered a massive, previously unknown space within the Great Pyramid of Giza. Mainstream Egyptologists suggest that the “Big Void” is simply a stress-relieving device for the Grand Gallery. But, as Scott Creighton reveals, ancient Coptic-Egyptian texts describe exactly what the Big Void is. Exploring the controversy surrounding the Big Void, Creighton artfully debunks many of the theories about the purpose of this massive chamber as well as other long-held Egyptology beliefs. Analyzing the Coptic-Egyptian texts and evidence from astronomy, archaeology, and other sources, the author reveals how the Great Pyramid was built by Khufu as an indestructible recovery vault to help Egyptian civilization rebuild after a cataclysmic natural disaster--a rapid pole shift and subsequent deluge--predicted by his astronomer-priests. And the key component of the recovery vault would have been the Hall of the Ancestors, a sealed safe haven containing the mummified remains of the Osiris Kings, deceased pharaohs who would seek the benevolence of the gods to ensure Egypt’s recovery from the disaster.