Breaking down the symbols themselves, they pose a series of questions: What is energy? What is mass? What has the speed of light got to do with energy and mass? In answering these questions, they take us to the site of one of the largest scientific experiments ever conducted. Lying beneath the city of Geneva, straddling the Franco-Swiss boarder, is a 27 km particle accelerator, known as the Large Hadron Collider. Using this gigantic machine—which can recreate conditions in the early Universe fractions of a second after the Big Bang—Cox and Forshaw will describe the current theory behind the origin of mass.Alongside questions of energy and mass, they will consider the third, and perhaps, most intriguing element of the equation: 'c' - or the speed of light. Why is it that the speed of light is the exchange rate? Answering this question is at the heart of the investigation as the authors demonstrate how, in order to truly understand why E=mc2, we first must understand why we must move forward in time and not backwards and how objects in our 3-dimensional world actually move in 4-dimensional space-time. In other words, how the very fabric of our world is constructed. A collaboration between two of the youngest professors in the UK, Why Does E=mc2? promises to be one of the most exciting and accessible explanations of the theory of relativity in recent years.

    Like a Wu Li Master who would teach us wonder for the falling petal before speaking of gravity, Zukav writes in beautifully clear language—with no mathematical equations—opening our minds to the exciting new theories that are beginning to embrace the ultimate nature of our universe...Quantum mechanics, relativity, and beyond to the Einstein-Podolsky-Rosen effect and Bell's theorem.At an Esalen Institute meeting in 1976, tai chi master Al Huang said that the Chinese word for physics is Wu Li, "patterns of organic energy." Journalist Gary Zukav and the others present developed the idea of physics as the dance of the Wu Li Masters--the teachers of physical essence. Zukav explains the concept further: The Wu Li Master dances with his student. The Wu Li Master does not teach, but the student learns. The Wu Li Master always begins at the center, the heart of the matter.... This book deals not with knowledge, which is always past tense anyway, but with imagination, which is physics come alive, which is Wu Li.... Most people believe that physicists are explaining the world. Some physicists even believe that, but the Wu Li Masters know that they are only dancing with it. The "new physics" of Zukav's 1979 book comprises quantum theory, particle physics, and relativity. Even as these theories age they haven't percolated all that far into the collective consciousness; they're too far removed from mundane human experience not to need introduction. The Dancing Wu Li Masters remains an engaging, accessible way to meet the most profound and mind-altering insights of 20th-century science. --Mary Ellen Curtin

    In this beautiful new one-volume edition, modern readers are introduced to one of the best nature writers of the last century. More than one hundred of the original illustrations by Paul Landacre highlight the eloquent and entertaining accounts of American trees. As we read Peattie's descriptions, we catch glimpses of our country's history and past daily life that no textbook could ever illuminate so vividly.Here you'll learn about everything from how a species was discovered to the part it played in our country’s history. Pioneers often stabled an animal in the hollow heart of an old sycamore, and the whole family might live there until they could build a log cabin. The tuliptree, the tallest native hardwood, is easier to work than most softwood trees; Daniel Boone carved a sixty-foot canoe from one tree to carry his family from Kentucky into Spanish territory. In the days before the Revolution, the British and the colonists waged an undeclared war over New England's white pines, which made the best tall masts for fighting ships. It's fascinating to learn about the commercial uses of various woods -- for paper, fine furniture, fence posts, matchsticks, house framing, airplane wings, and dozens of other preplastic uses. But we cannot read this book without the occasional lump in our throats. The American elm was still alive when Peattie wrote, but as we read his account today we can see what caused its demise. Audubon's portrait of a pair of loving passenger pigeons in an American beech is considered by many to be his greatest painting. It certainly touched the poet in Donald Culross Peattie as he depicted the extinction of the passenger pigeon when the beech forest was destroyed. A Natural History of North American Trees gives us a picture of life in America from its earliest days to the middle of the last century. The information is always interesting, though often heartbreaking. While Peattie looks for the better side of man's nature, he reports sorrowfully on the greed and waste that have doomed so much of America's virgin forest.

    Whether you want to grow better-tasting fruit and vegetables untainted by chemicals, find natural methods of pest and weed control, or create a garden that is safer for your children, pets and wildlife, Organic Gardening is your practical, easy-to-follow guide to gardening with, rather than against, nature.

    Completely redesigned and updated for the first time in 10 years, the new edition features over 1,700 beautiful color photographs and over 7,000 featured plants. Enhanced features include a monthly garden checklist, a Q&A section to tackle everyday problems, and garden design solutions, plus industry experts provide the hottest trends and tips combined with old-fashioned wisdom. From the new homeowner just starting out in gardening to the Master Class gardener, this book will be an essential resource.

    From building and working with traditional compost bins to starting an indoor worm-composting operation, Composting For Dummies makes these often intimidating projects easy, fun, and accessible for anyone!Digging into compost basics -- get a handle on the benefits of composting and the tools you'll need to get startedChoosing the best method and location -- find the best composting method and location that's right for you, whether it's above ground, in a hole, in a container or bin, or even right in your kitchenBuilding your pile -- learn which ingredients can go into your compost pile, what stays out, and how to mix it all up in the right proportionsStepping beyond traditional composting -- get the lowdown on vermicomposting (letting worms eat your garbage), growing green manures to compost later, and sheet composting in the same spot you plan to plantOpen the book and find:A step-by-step guide to compostingThe right gear and tools for the jobTips on constructing your own composting containers and binsMaterials you can safely compost (and those to avoid)Cover crops to improve your soil now and compost laterRecommendations for using your finished compostWhat worms contribute to your compostTroubleshooting advice if your compost pile isn't cooperatingLearn to:Turn household food waste, yard clippings, and more into nutrient-rich compostBuild and maintain your own compost binUse worms to aid in composting, both indoors and outGive your vegetable and flower gardens a boost of energy