Even as you read these words, a tiny portion of your brain is physically changing. New connections are being sprouted--a circuit that will create a stab of recognition if you encounter the words again. That is one of the theories of memory presented in this intriguing and splendidly readable book, which distills three researchers' inquiries into the processes that enable us to recognize a face that has aged ten years or remember a melody for decades. Ranging from experiments performed on the "wetware" of the brain to attempts to re-create human cognition in computers, In the Palaces of Memory is science writing at its most exciting.
Machinery of Mind is a full-scale, indispensable examination of the history, content, politics, and philosophy of Artificial Intelligence. In detail, consecutively but with a keen awareness of the interdisciplinary nature of the field, Johnson traces the history of the burgeoning science from its earliest practitioners to corporation-funded engineers and experts: Roger Schank, Terry Winograd, Doug Lenat and others who are struggling to create machines that can actually think independently, going beyond man-made programs and "games." Johnson presents the counterarguments of some theorists that intelligence is less than soul and that the "new science" moves arrogantly into dangerous territory. Necessarily inconclusive, this fascinating study is clear, comprehensive, richly detailed, and endlessly provocative.
When the woman he loved was diagnosed with a metastatic cancer, science writer George Johnson embarked on a journey to learn everything he could about the disease and the people who dedicate their lives to understanding and combating it. What he discovered is a revolution under way—an explosion of new ideas about what cancer really is and where it comes from. In a provocative and intellectually vibrant exploration, he takes us on an adventure through the history and recent advances of cancer research that will challenge everything you thought you knew about the disease.
Deftly excavating and illuminating decades of investigation and analysis, he reveals what we know and don’t know about cancer, showing why a cure remains such a slippery concept. We follow him as he combs through the realms of epidemiology, clinical trials, laboratory experiments, and scientific hypotheses—rooted in every discipline from evolutionary biology to game theory and physics. Cogently extracting fact from a towering canon of myth and hype, he describes tumors that evolve like alien creatures inside the body, paleo-oncologists who uncover petrified tumors clinging to the skeletons of dinosaurs and ancient human ancestors, and the surprising reversals in science’s comprehension of the causes of cancer, with the foods we eat and environmental toxins playing a lesser role. Perhaps most fascinating of all is how cancer borrows natural processes involved in the healing of a wound or the unfolding of a human embryo and turns them, jujitsu-like, against the body.
Throughout his pursuit, Johnson clarifies the human experience of cancer with elegiac grace, bearing witness to the punishing gauntlet of consultations, surgeries, targeted therapies, and other treatments. He finds compassion, solace, and community among a vast network of patients and professionals committed to the fight and wrestles to comprehend the cruel randomness cancer metes out in his own family. For anyone whose life has been affected by cancer and has found themselves asking why?, this book provides a new understanding. In good company with the works of Atul Gawande, Siddhartha Mukherjee, and Abraham Verghese, The Cancer Chronicles is endlessly surprising and as radiant in its prose as it is authoritative in its eye-opening science.
Em vários anos, a dieta Paleo tem chegado a ser intrigantemente famosa. Ela tem suas vantagens à luz do fato de que um regime Paleo é elevado no sustento como a qualidade de carnes, ovos e legumes, ao mesmo tempo, eliminando nutrientes manipulados, legumes e grãos. Inclua algumas destas fórmulas de dieta Paleo de bom gosto no menu da sua família para apreciar refeições ricas em proteínas, fórmulas de baixo teor de carbohidratos independentemente do que for o jantar. Adicionando os alimentos sugeridos neste livro para suas refeições diárias tornará mais fácil para você perder peso, ter um sistema imunológico mais forte e alcançar uma melhor qualidade de vida. O que você está esperando? Tome a ação e agarre sua cópia agora!
"Our knowledge of fundamental physics contains not one fruitful idea that does not carry the name of Murray Gell-Mann."--Richard Feynman
Acclaimed science writer George Johnson brings his formidable reporting skills to the first biography of Nobel Prize-winner Murray Gell-Mann, the brilliant, irascible man who revolutionized modern particle physics with his models of the quark and the Eightfold Way.
Born into a Jewish immigrant family on New York's East 14th Street, Gell-Mann's prodigious talent was evident from an early age--he entered Yale at 15, completed his Ph.D. at 21, and was soon identifying the structures of the world's smallest components and illuminating the elegant symmetries of the universe.
Beautifully balanced in its portrayal of an extraordinary and difficult man, interpreting the concepts of advanced physics with scrupulous clarity and simplicity, Strange Beauty is a tour-de-force of both science writing and biography.
In this remarkably illustrative and thoroughly accessible look at one of the most intriguing frontiers in science and computers, award-winning New York Times writer George Johnson reveals the fascinating world of quantum computing—the holy grail of super computers where the computing power of single atoms is harnassed to create machines capable of almost unimaginable calculations in the blink of an eye.
As computer chips continue to shrink in size, scientists anticipate the end of the road: A computer in which each switch is comprised of a single atom. Such a device would operate under a different set of physical laws: The laws of quantum mechanics. Johnson gently leads the curious outsider through the surprisingly simple ideas needed to understand this dream, discussing the current state of the revolution, and ultimately assessing the awesome power these machines could have to change our world.
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