He revolutionized the field of topology, which studies properties of geometric configurations that are unchanged by stretching or twisting. The Poincare conjecture lies at the heart of modern geometry and topology, and even pertains to the possible shape of the universe. The conjecture states that there is only one shape possible for a finite universe in which every loop can be contracted to a single point.Poincare's conjecture is one of the seven "millennium problems" that bring a one-million-dollar award for a solution. Grigory Perelman, a Russian mathematician, has offered a proof that is likely to win the Fields Medal, the mathematical equivalent of a Nobel prize, in August 2006. He also will almost certainly share a Clay Institute millennium award.In telling the vibrant story of The Poincare Conjecture, Donal O'Shea makes accessible to general readers for the first time the meaning of the conjecture, and brings alive the field of mathematics and the achievements of generations of mathematicians whose work have led to Perelman's proof of this famous conjecture.

    In this amazingly comprehensible history of the universe, Simon Singh decodes the mystery behind the Big Bang theory, lading us through the development of one of the most extraordinary, important, and awe-inspiring theories in science.

    Young readers can find the answers to thousands of off-the-wall questions quickly and effortlessly in this fascinating, funny resource. Full color.

    Einstein famously rejected quantum mechanics, observing that God does not play dice. But, in fact, he thought more about the nature of atoms, molecules, and the emission and absorption of light--the core of what we now know as quantum theory--than he did about relativity.A compelling blend of physics, biography, and the history of science, "Einstein and the Quantum" shares the untold story of how Einstein--not Max Planck or Niels Bohr--was the driving force behind early quantum theory. It paints a vivid portrait of the iconic physicist as he grappled with the apparently contradictory nature of the atomic world, in which its invisible constituents defy the categories of classical physics, behaving simultaneously as both particle and wave. And it demonstrates how Einstein's later work on the emission and absorption of light, and on atomic gases, led directly to Erwin Schrodinger's breakthrough to the modern form of quantum mechanics. The book sheds light on why Einstein ultimately renounced his own brilliant work on quantum theory, due to his deep belief in science as something objective and eternal.A book unlike any other, "Einstein and the Quantum" offers a completely new perspective on the scientific achievements of the greatest intellect of the twentieth century, showing how Einstein's contributions to the development of quantum theory are more significant, perhaps, than even his legendary work on relativity.

       From the New York Times bestselling creator of Lost in Translation, Eating the Sun is a delicately existential, beautifully illustrated, and welcoming exploration of the universe—one that examines and marvels at the astonishing principles, laws, and phenomena that we exist alongside, that we sit within.

    A number of the key figures in the new edition are revised to provide a more inviting and informative treatment. The figures are broken into component parts with supporting commentary so that they can more readily see the key ideas. Material from The Flying Circus is incorporated into the chapter opener puzzlers, sample problems, examples and end-of-chapter problems to make the subject more engaging. Checkpoints enable them to check their understanding of a question with some reasoning based on the narrative or sample problem they just read. Sample Problems also demonstrate how engineers can solve problems with reasoned solutions.

    Although he was diagnosed with a neurological disease at age 21, Stephen did not let the illness define his life. Known for his groundbreaking work in physics, and identified by his wheelchair and computerized voice system, Stephen continued his research until his death in 2018. He is best known for his black hole theories and his best-selling book A Brief History of Time. Stephen Hawking is an example of a person who had a great mind, but an even greater spirit.

    Born in Pisa, Italy, in the sixteenth century, Galileo contributed to the era's great rebirth of knowledge. He invented a telescope to observe the heavens. From there, not even the sky was the limit! He turned long-held notions about the universe topsy turvy with his support of a sun-centric solar system. Patricia Brennan Demuth offers a sympathetic portrait of a brilliant man who lived in a time when speaking scientific truth to those in power was still a dangerous proposition.

    From the emergence of life at deep-sea vents to solar-powered starships sailing through the galaxy, from the Big Bang to the intricacies of intelligence in many life forms, acclaimed author Ann Druyan documents where humanity has been and where it is going, using her unique gift of bringing complex scientific concepts to life. With evocative photographs and vivid illustrations, she recounts momentous discoveries, from the Voyager missions in which she and her husband, Carl Sagan, participated to Cassini-Huygens's recent insights into Saturn's moons. This breathtaking sequel to Sagan's masterpiece explains how we humans can glean a new understanding of consciousness here on Earth and out in the cosmos--again reminding us that our planet is a pale blue dot in an immense universe of possibility.

    Rowling and the brilliant curators of the British Library. It promises to take readers on a fascinating journey through the subjects studied at Hogwarts School of Witchcraft and Wizardry – from Alchemy and Potions classes through to Herbology and Care of Magical Creatures.Each chapter showcases a treasure trove of artefacts from the British Library and other collections around the world, beside exclusive manuscripts, sketches and illustrations from the Harry Potter archive. There's also a specially commissioned essay for each subject area by an expert, writer or cultural commentator, inspired by the contents of the exhibition – absorbing, insightful and unexpected contributions from Steve Backshall, the Reverend Richard Coles, Owen Davies, Julia Eccleshare, Roger Highfield, Steve Kloves, Lucy Mangan, Anna Pavord and Tim Peake, who offer a personal perspective on their magical theme.Readers will be able to pore over ancient spell books, amazing illuminated scrolls that reveal the secret of the Elixir of Life, vials of dragon's blood, mandrake roots, painted centaurs and a genuine witch's broomstick, in a book that shows J.K. Rowling's magical inventions alongside their cultural and historical forebears.This is the ultimate gift for Harry Potter fans, curious minds, big imaginations, bibliophiles and readers around the world who missed out on the chance to see the exhibition in person.

    

    Even after more than three centuries and the revolutions of Einsteinian relativity and quantum mechanics, Newtonian physics continues to account for many of the phenomena of the observed world, and Newtonian celestial dynamics is used to determine the orbits of our space vehicles.This completely new translation, the first in 270 years, is based on the third (1726) edition, the final revised version approved by Newton; it includes extracts from the earlier editions, corrects errors found in earlier versions, and replaces archaic English with contemporary prose and up-to-date mathematical forms. Newton's principles describe acceleration, deceleration, and inertial movement; fluid dynamics; and the motions of the earth, moon, planets, and comets. A great work in itself, the Principia also revolutionized the methods of scientific investigation. It set forth the fundamental three laws of motion and the law of universal gravity, the physical principles that account for the Copernican system of the world as emended by Kepler, thus effectively ending controversy concerning the Copernican planetary system.The illuminating Guide to the Principia by I. Bernard Cohen, along with his and Anne Whitman's translation, will make this preeminent work truly accessible for today's scientists, scholars, and students.

    Children are given a well-rounded understanding of this beautiful fish: its anatomy, feeding habits and behavior. The following Sharks are featured:* The swift Black Tip Reef Shark* The dangerous Bull Shark* The resourceful Hammerhead Shark* The feared Great White Shark* The stealthy Lemon Shark* The fanged Nurse Shark* The gentle Whale Shark* The deceptive Wobbegong

    They began life as a sort of underground language just out of reach of the understanding of the Germans. They have since become one of the most widely read forms of composition in the Scandinavian - and English - languages. Grooks are the product of one of the most ingenious minds of this century or any other century. A Danish scientist turned poet, Piet Hein has published longer poems, fiction, drama and essays; he has designed a "rectangular oval," the Super-Ellipse, used in the new Stockholm city center and other cities; he has invented games, the newest of which, SOMA and the Super-Egg, have just been released by Parker Brothers to the delight of hundreds of thousands. What in the world is a grook? Look inside and see for yourself; but beware: you are about to become a grookaddict, a happy victim of one of the most relaxing pleasures available in this nervous world.

    Don't let it fall into the wrong hands!Do you believe in dragons? Now, for the first time, the long-lost research of renowned nineteenth century dragonologist Dr. Ernest Drake is presented in all its eccentric glory, happily bridging the gap between dragon legend and fact. The meticulous Dr. Drake assigns Latin names to various dragon species, ruminates on why dragons are able to speak, speculates on how they could fly, and explains the true purpose of their notorious hoarding habits. Here are just a few of DRAGONOLOGY'S fascinating features:-- Novelty item on every spread, including tactile samples of dragon wings, dragon scales, and dragon skin -- Booklet of dragon riddles (indispensable to the burgeoning dragonologist) -- Sealed envelope containing a powerful dragon-calling spell -- Embossed faux leather cover with silver foil, encrusted with three dragon gemsIn his afterword, Dr. Drake reveals that one of the crucial goals of dragonologists is to preserve the magnificent creatures of their study wherever possible - a goal this tongue-in-cheek volume most affectionately achieves. An incomparable gift for secret dragonologists everywhere!