What France's ancient cave drawings may reveal about the origin of language, art, and human thought--insights into one of the greatest mysteries in anthropology They roam deep underground in the recesses of French (and some Spanish) caves: Bulls and bison. Horses and stags. Rhinos, bears, human-like creatures, and more. Painted, drawn, or engraved, these incredible images are 32,000 years old, yet they seem full of personality and life. Who were the artists? How did they make these paintings miles into labyrinthine caves with only stone candles to light the way? Why did the artists make them and what do they mean? What about the undecipherable signs accompanying the art? Popular science writer Amir Aczel examines the cave drawings and the theories scientists have put forward to explain them, including religious iconography, hunting trophies, and a leap in human brain development. Drawing on years of research and his own visits to Paleolithic caves, Aczel takes us underground on an unforgettable journey of discovery at the crossroads of art, science, and history in the quest to solve the mysteries of this Stone Age art and deepen our understanding of human evolution. Amir D. Aczel (Brookline, MA) is a research fellow in the history of science at Boston University and former visiting scholar at Harvard University. He is the author of 14 books, including Fermat's Last Theorem (978-0-385-31946-1), Descartes's Secret Notebook (978-0-7679-2034-6), and The Jesuit and the Skull (978-1-59448-956-3). He has appeared on the CBS Evening News, CNN, CNBC, and ABC's Nightline, as well as NPR's Weekend Edition and Morning Edition.

The Large Hadron Collider (LHC) is the biggest, and by far the most powerful, machine ever built. A project of CERN, the European Organization for Nuclear Research, its audacious purpose is to re-create, in a 16.5-mile-long circular tunnel under the French-Swiss countryside, the immensely hot and dense conditions that existed some 13.7 billion years ago within the first trillionth of a second after the fiery birth of our universe.
In "Present at the Creation, "Amir D. Aczel takes us inside the control rooms, as an international team of researchers begins to discover whether a multibillion-euro investment will fulfill its promise: to find empirical confirmation of theories in physics and cosmology. Through the eyes and words of the men and women who conceived and built CERN and the LHC, Aczel enriches all of us with a firm grounding in the scientific concepts necessary to appreciate fully the stunning July 4, 2012 discovery of the Higgs Boson. Newly updated in the wake of the discovery, "Present at the Creation" tells the story of perhaps the greatest experiment in the history of science.

For thousands of years, it was the visionaries and writers who argued that we cannot be alone-that there is intellegent life in the universe. Now, with the discoveries of the Hubble Telescope, data emerging from Mars, and knowledge about life at the extremes, scientists are taking up where they left off. Amir Aczel, author of Fermat's Last Theorem, pulls together everyting science has discovered, and mixes in proabability theory, to argure the case for the existence of intelligent life beyond this planet. Probability 1 is an extraordinary tour de force in which the author draws on cosmology, math, and biology to tell the rollicking good story of scientists tackling important scientific questions that help answer this fundamental question. What is the probability of intelligent life in the universe? Read this book, and you'll be convinced, by the power of the argument and the excitement of the science.

The I.R.S. selects its victims on purely statistical considerations. This guide gives taxpayers an inside chance to defend themselves--before they find themselves under attack--showing which of more than 100 million returns filed annually will be audited and which will be spared. 12 graphs & charts.

The invention of numerals is perhaps the greatest abstraction the human mind has ever created. Virtually everything in our lives is digital, numerical, or quantified. The story of how and where we got these numerals has for thousands of years been shrouded in mystery. Finding Zero is an adventure-filled saga of Amir Aczel's lifelong obsession: to find the original sources of our numerals. Aczel has doggedly crisscrossed the ancient world, scouring dusty, moldy texts, cross examining so-called scholars who offered wildly differing sets of facts, and ultimately penetrating deep into a Cambodian jungle to find a definitive proof. Here, he takes the reader along for the ride. The history begins with the early Babylonian cuneiform numbers, followed by the later Greek and Roman letter numerals. Then Aczel asks the key question: where do the numbers we use today, the so-called Hindu-Arabic numerals, come from? This leads him to explore uncharted territory, to go on a grand quest into India, Thailand, Laos, Vietnam, and ultimately into the wilds of Cambodia. There he finds the earliest zero on a crumbling, vine-covered wall of a seventh-century temple adorned with eaten-away erotic sculptures. While on this odyssey, Aczel meets academics in search of truth, jungle trekkers looking for adventure, surprisingly honest politicians, shameless smugglers, and archaeological thieves - who finally reveal where our numbers come from.

The story of the compass is shrouded in mystery and myth, yet most will agree it begins around the time of the birth of Christ in ancient China. A mysterious lodestone whose powers affected metal was known to the Chinese emperor. When this piece of metal was suspended in water, it always pointed north. This unexplainable occurrence led to the stone's use in feng shui, the Chinese art of finding the right location. However, it was the Italians, more than a thousand years later, who discovered the ultimate destiny of the lodestone and unleashed its formidable powers. In Amalfi sometime in the twelfth century, the compass was born, crowning the Italians as the new rulers of the seas and heralding the onset of the modern world. Retracing the roots of the compass and sharing the fascinating story of navigation through the ages, "The Riddle of the Compass"is Aczel at his most entertaining and insightful.

Rene Descartes (1596-1650) is one of the towering and central figures in Western philosophy and mathematics. His apothegm ""Cogito, ergo sum"" marked the birth of the mind-body problem, while his creation of so-called Cartesian coordinates have made our physical and intellectual conquest of physical space possible.
But Descartes had a mysterious and mystical side, as well. Almost certainly a member of the occult brotherhood of the Rosicrucians, he kept a secret notebook, now lost, most of which was written in code. After Descartes's death, Gottfried Leibniz, inventor of calculus and one of the greatest mathematicians in history, moved to Paris in search of this notebook--and eventually found it in the possession of Claude Clerselier, a friend of Descartes. Leibniz called on Clerselier and was allowed to copy only a couple of pages--which, though written in code, he amazingly deciphered there on the spot. Leibniz's hastily scribbled notes are all we have today of Descartes's notebook, which has disappeared.
Why did Descartes keep a secret notebook, and what were its contents? The answers to these questions lead Amir Aczel and the reader on an exciting, swashbuckling journey, and offer a fascinating look at one of the great figures of Western culture.

He was neither a mathematician nor a trained physicist and yet Leon Foucault always knew that a mysterious force of nature was among us. Like Newton, Galileo, Copernicus, and others before him, Foucault sensed a dramatic relationship between the rotating skies above and the seemingly motionless ground beneath our feet. But it wasn't until 1851 -- in Paris, inside the Pantheon, and in the company of fellow amateur scientist Napoleon III -- that Foucault swung a pendulum and demonstrated an extraordinary truth about the world: that it turns on its axis.

"Pendulum" is a fascinating journey through the mind and findings of one of the most important and lesser-known characters in the history of science. Through careful research and lively anecdotes, world-renowned author Amir D. Aczel reveals the astonishing range and breadth of Foucault's discoveries. For, in addition to offering the first unequivocal proof of Earth's rotation, Foucault gave us the modern electric compass and microscope, was a pioneer in photographic technology, and made remarkable deductions about color theory, heat waves, and the speed of light.

At its heart, "Pendulum" is a story about the illustrious period in France during the Second Empire; the crucial triumph of science over religion; and, most compelling, the life of a struggling, self-made man whose pursuit of knowledge continues to inform our notions about the universe today.

"Die Wahrscheinlichkeitstheorie ist eine der unglaublichsten Erfindungen der Menschheit," schreibt der Mathematiker, Wissenschaftshistoriker und Publizist Amir D. Aczel am Ende seines mitreissenden Buchs, das die mathematischen Modelle fur Gluck und Zufall auch unter historischer Perspektive betrachtet. Den Zufall beim Wurfeln beispielsweise haben die alten Griechen als Orakel benutzt - mit Gelenkknochen, die auf vier mogliche Weisen fallen konnten. Und bis heute ist die beste Strategie der Partnersuche, sich mit 37% - oder praziser 1/e - der moglichen Heiratskandidaten seiner Umgebung zu treffen und danach diejenige Person zu wahlen, die alle anderen uberflugelt. "