Titres dans Physique

All the matter and light we can see in the universe makes up a trivial five per cent of everything. The rest is hidden. This could be the biggest puzzle that science has ever faced. Since the 1970s, astronomers have been aware that galaxies have far too little matter in them to account for the way they spin around: they should fly apart, but something concealed holds them together. That ’something' is dark matter - invisible material in five times the quantity of the familiar stuff of stars and planets.

How much do you know about the radiation all around you? Your electronic devices swarm with it; the sun bathes you in it. It's zooming at you from cell towers, microwave ovens, CT scans, mammogram machines, nuclear power plants, deep space, even the walls of your basement. You cannot see, hear, smell, or feel it, but there is never a single second when it is not flying through your body. Too much of it will kill you, but without it you wouldn't live a year.

This book will appeal to foodies and those who are deprived of cookbooks in audio format. Molecular Gastronomy documents the sensory phenomena of eating and uses basic physics to put to bed many culinary myths. This audiobook presents pieces of conventional wisdom - such as whether it is better to make a stock by placing meat in already boiling water, or water before it is boiled - and gives its history before making scientific pronouncements.

Why is red meat red? How do they decaffeinate coffee? Do you wish you understood the science of food but don't want to plow through dry, technical books? In What Einstein Told His Cook, University of Pittsburgh chemistry professor emeritus and award-winning Washington Post food columnist Robert L. Wolke provides reliable and witty explanations for your most burning food questions, while debunking misconceptions and helping you interpret confusing advertising and labeling.

Have you ever wondered what it would be like to find yourself strapped to a giant rocket that's about to go from zero to 17,500 miles per hour? Or to look back on Earth from outer space and see the surprisingly precise line between day and night? Or to stand in front of the Hubble Space Telescope, wondering if the emergency repair you're about to make will inadvertently ruin humankind's chance to unlock the universe's secrets? Mike Massimino has been there, and in Spaceman he puts you inside the suit.

Gravity is the weakest force in the everyday world, yet it is the strongest force in the universe. It was the first force to be recognised and described, yet it is the least understood. It is a 'force' that keeps your feet on the ground, yet no such force actually exists. Gravity, to steal the words of Winston Churchill, is 'a riddle wrapped in a mystery inside an enigma'. And penetrating that enigma promises to answer the biggest questions in science: what is space? What is time? What is the universe? And where did it all come from?

In the final decades of the 19th century, three brilliant and visionary titans of America's Gilded Age - Thomas Edison, Nikola Tesla, and George Westinghouse - battled as each vied to create a vast and powerful electrical empire. In Empires of Light, historian Jill Jonnes portrays this extraordinary trio and their riveting and ruthless world of cutting-edge science, invention, intrigue, money, death, and hard-eyed Wall Street millionaires.

This Basic Physics for Beginners is the ultimate guidebook you’ll ever need to learn the basics of Physics! This comprehensive yet easy-to-follow book on the principles of Physics will make you master the subject the easiest way!

Albert Einstein described Relativity as a "popular explosion" of his famous theory. Written in 1916, it introduced the lay audience to the remarkable perspective which had overturned theoretical physics. Einstein's genius was to express this perspective in understandable terms.

If you're like most people, geometry is a dimly remembered exercise you gladly left behind in the dust of ninth grade. It's plodding through a series of miniscule steps only to prove some fact about triangles that was obvious to you in the first place. That's not geometry. Okay, it is geometry, but only a tiny part, which has as much to do with geometry in all its flush modern richness as conjugating a verb has to do with a great novel. Shape reveals the geometry underneath some of the most important scientific, political, and philosophical problems we face.

For a long time, scientists have wondered how life has emerged from inanimate chemistry, and whether Earth is the only place where it exists. Charles Darwin speculated about life on Earth beginning in a warm little pond. Some of his contemporaries believed that life existed on Mars. It once seemed inevitable that the truth would be known by now. It is not. For more than a century, the origins and extent of life have remained shrouded in mystery. But, as Mario Livio and Jack Szostak reveal in Is Earth Exceptional?, the veil is finally lifting.

Every one of us contains a billion times more atoms than all the grains of sand in the earth’s deserts. If you weigh 150 pounds, you’ve got enough carbon to make 25 pounds of charcoal, enough salt to fill a saltshaker, enough chlorine to disinfect several backyard swimming pools, and enough iron to forge a 3-inch nail. But how did these elements combine to make us human?

Harry Cliff - a University of Cambridge particle physicist and researcher on the Large Hadron Collider - sets out in pursuit of answers. He ventures to the largest underground research facility in the world, deep beneath Italy's Gran Sasso mountains, where scientists gaze into the heart of the Sun using the most elusive of particles, the ghostly neutrino. He visits CERN in Switzerland to explore the "Antimatter Factory," where the stuff of science fiction is manufactured daily (and we're close to knowing whether it falls up).

Her Space, Her Time shares the stories of women in physics and astronomy whose work expanded scientific understanding yet whose accomplishments are often overlooked—creating a thrilling account of scientific discovery, inspirational leadership and persistence in the face of overwhelming challenges. In shaping her narrative around the science that fascinated them and the social context in which they worked, award-winning quantum physicist Shohini Ghose champions these remarkable women’s contributions, which loom even larger given the misogyny and discrimination they faced.

Discover the wonder of Quantum Physics and its application in technology, science, and human consciousness—even if science has never been your strength. In this book you'll learn the Quantum principles we rely on in our day-to-day lives and how they impact human health and well-being.

From Beethoven's connection to plumbing to why rotten eggs smell like sulfur, the technical explanations included in this scientific primer tackle 99 chemistry-related questions and provide answers designed to inform and entertain. What jewelry metal is prohibited in some European countries? What does Miss Piggy have to do with the World Cup? How can a cockroach be removed from a human ear? The quirky information offered incorporates scientific savvy, practical advice, and amusing anecdotes.

In the course of our enduring quest for knowledge about ourselves and our universe, we haven't found answers to one of our most fundamental questions: Does life exist anywhere else in the universe? Ten years and billions of dollars in the making, the Mars rover Curiosity is poised toanswer this all-important question.

These stories from Quanta Magazine map the routes of mathematical exploration, showing listeners how cutting-edge research is done, while illuminating the productive tension between conjecture and proof, theory and intuition. Listeners of The Prime Number Conspiracy are headed on "breathtaking intellectual journeys to the bleeding edge of discovery strapped to the narrative rocket of humanity's never-ending pursuit of knowledge," says Quanta editor-in-chief Thomas Lin.

In the 1970s, amid severe cutbacks in physics funding, a small group of underemployed physicists in Berkeley decided to throw off the constraints of academia and explore the wilder side of science. Dubbing themselves the “Fundamental Fysiks Group,” they pursued a freewheeling, speculative approach to physics. Some dabbled with LSD while conducting experiments. They studied quantum theory alongside Eastern mysticism and psychic mind reading, discussing the latest developments while lounging in hot tubs.

Science is fantastic. It tells us about the infinite reaches of space, the tiniest living organism, the human body, the history of Earth. People have always been doing science because they have always wanted to make sense of the world and harness its power. From ancient Greek philosophers through Einstein and Watson and Crick to the computer-assisted scientists of today, men and women have wondered, examined, experimented, calculated, and sometimes made discoveries so earthshaking that people understood the world-or themselves-in an entirely new way.