Discover more than 250 ancient species, many of which have only just been unearthed. Accompanied by spectacular double-page illustrations, the encyclopedia is packed full of extra information on the anatomy, behavior, diet, and habitat of prehistoric creatures.Find out about the very first dinosaurs and their descendants, the giant herbivores, the fierce meat-eaters and the reptiles that ruled the seas and skies. And read about the amazing quest of the fossil hunters who have gradually revealed a hidden world.

    This discovery dramatically reshaped how humans understood their place in the cosmos, and once and for all laid to rest the idea that the Milky Way galaxy was alone in the universe. Six years later, continuing research by Hubble and others forced Albert Einstein to renounce his own cosmic model and finally accept the astonishing fact that the universe was not immobile but instead expanding. The fascinating story of these interwoven discoveries includes battles of will, clever insights, and wrong turns made by the early investigators in this great twentieth-century pursuit. It is a story of science in the making that shows how these discoveries were not the work of a lone genius but the combined efforts of many talented scientists and researchers toiling away behind the scenes. The intriguing characters include Henrietta Leavitt, who discovered the means to measure the vast dimensions of the cosmos . . . Vesto Slipher, the first and unheralded discoverer of the universe’s expansion . . . Georges Lemaître, the Jesuit priest who correctly interpreted Einstein’s theories in relation to the universe . . . Milton Humason, who, with only an eighth-grade education, became a world-renowned expert on galaxy motions . . . and Harlow Shapley, Hubble’s nemesis, whose flawed vision of the universe delayed the discovery of its true nature and startling size for more than a decade.Here is a watershed moment in the history of astronomy, brought about by the exceptional combination of human curiosity, intelligence, and enterprise, and vividly told by acclaimed science writer Marcia Bartusiak.

    Their numbers are in freefall, dropping by nearly 70 percent in the last sixty years, a billion fewer now than in 1950. Extinction stalks the ocean, and there is a danger that the hundred-million-year-old cries of a seabird colony, rolling around in the bays and headlands of high latitudes, will this century become but a memory.

    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.

    In rural Ohio, she managed a household of 11 kids alongside a less-than-supportive husband. One day, at age 67, she decided to go for a nice long walk . . . and ended up completing the Appalachian Trail.   With just the clothes on her back and a pair of thin canvas sneakers on her feet, Grandma Gatewood hiked up ridges and down ravines. She braved angry storms and witnessed breathtaking sunrises. When things got particularly tough, she relied on the kindness of strangers or sheer luck to get her through the night. When the newspapers got wind of her amazing adventure, the whole country cheered her on to the end of her trek, which came just a few months after she set out. A story of true grit and girl power at any age, Grandma Gatewood proves that no peak is insurmountable.

    Now available in a compact, more convenient format, it offers the same text and many of the illustrations which first appeared in the widely acclaimed Oxford Illustrated History of Medieval Europe. Written by expert scholars and based on the latest research, the book explores a period of profound diversity and change, focusing on all aspects of medieval history from the empires and kingdoms of Charlemagne and the Byzantines to the new nations which fought the Hundred Years War. The Oxford History of the Medieval World also examines such intriguing cultural subjects as the chivalric code of knights, popular festivals, and the proliferation of new art forms, and the catastrophic social effect of the Black Death. Authoritative and eminently readable, this book will entertain as much as it will educate.

    His notebooks are the mind-boggling evidence of a fifteenth-century scientist standing at the edge of the modern world, basing his ideas on observation and experimentation. Scrupulously researched, juicily anecdotal, this book will change children’s ideas of who Leonardo was and what it means to be a scientist.Award-winning biographer Kathleen Krull will focus on five other "giants of science"— Isaac Newton, Charles Darwin, Marie Curie, Sigmund Freud, and Albert Einstein. Each book presents a compelling portrait of an individual as well as a picture of the world at a particular time and place.

    But how has the earth itself determined our destiny? Our planet wobbles, driving changes in climate that forced the transition from nomadism to farming. Mountainous terrain led to the development of democracy in Greece. Atmospheric circulation patterns later on shaped the progression of global exploration, colonization, and trade. Even today, voting behavior in the south-east United States ultimately follows the underlying pattern of 75 million-year-old sediments from an ancient sea. Everywhere is the deep imprint of the planetary on the human.From the cultivation of the first crops to the founding of modern states, Origins reveals the breathtaking impact of the earth beneath our feet on the shape of our human civilizations.

    From the tenth to the fifteenth centuries the earth experienced a rise in surface temperature that changed climate worldwide—a preview of today's global warming. In some areas, including Western Europe, longer summers brought bountiful harvests and population growth that led to cultural flowering. In the Arctic, Inuit and Norse sailors made cultural connections across thousands of miles as they traded precious iron goods. Polynesian sailors, riding new wind patterns, were able to settle the remotest islands on earth. But in many parts of the world, the warm centuries brought drought and famine. Elaborate societies in western and central America collapsed, and the vast building complexes of Chaco Canyon and the Mayan Yucatan were left empty.As he did in his bestselling The Little Ice Age, anthropologist and historian Brian Fagan reveals how subtle changes in the environment had far-reaching effects on human life, in a narrative that sweeps from the Arctic ice cap to the Sahara to the Indian Ocean. The history of the Great Warming of a half millennium ago suggests that we may yet be underestimating the power of climate change to disrupt our lives today—and our vulnerability to drought, writes Fagan, is the "silent elephant in the room."Learn more at www.brianfagan.com.Brian Fagan discusses The Great Warming on The Daily Show with John Stewart.PRAISE for The Great Warming:"This is not only World History at its best, sweeping across all of humankind with a coherent vision, but also a feat of imagination and massive research. If Fagan has given the medieval period throughout the globe a new dimension, he has at the same time issued an irrefutable warning about climate change that is deeply troubling."—Theodore Rabb, author of The Last Days of the Renaissance"Climate has been making history for a very long time, though historians have rarely paid much attention to it. But as it turns out, a few less inches of rain, a change in temperature of just a degree or two can make all the difference in how human events unfold. The Great Warming demonstrates that although human beings make history, they very definitely do not make it under circumstances of their own choosing.”—Ted Steinberg, author of Down to Earth: Nature’s Role in American History and American Green: The Obsessive Quest for the Perfect Lawn

    In 2009, he founded StarTalk, the wildly popular podcast that became an Emmy-nominated talk show on the National Geographic Channel this year. Tyson’s pioneering, provocative book will take the greatest hits from the airwaves to the page in one smart, richly illustrated compendium. Featuring vivid photography, thought-provoking sidebars, enlightening facts, and fun quotes from science and entertainment luminaries like Bill Nye and Dan Aykroyd, StarTalk reimagines science’s most challenging topics—from how the brain works to the physics of comic book superheroes—in a relatable, humorous way that will delight fans and new readers alike.

    Wilczek’s groundbreaking work in quantum physics was inspired by his intuition to look for a deeper order of beauty in nature. In fact, every major advance in his career came from this intuition: to assume that the universe embodies beautiful forms, forms whose hallmarks are symmetry—harmony, balance, proportion—and economy. There are other meanings of “beauty,” but this is the deep logic of the universe—and it is no accident that it is also at the heart of what we find aesthetically pleasing and inspiring.Wilczek is hardly alone among great scientists in charting his course using beauty as his compass. As he reveals in A Beautiful Question, this has been the heart of scientific pursuit from Pythagoras, the ancient Greek who was the first to argue that “all things are number,” to Galileo, Newton, Maxwell, Einstein, and into the deep waters of twentiethcentury physics. Though the ancients weren’t right about everything, their ardent belief in the music of the spheres has proved true down to the quantum level. Indeed, Wilczek explores just how intertwined our ideas about beauty and art are with our scientific understanding of the cosmos.Wilczek brings us right to the edge of knowledge today, where the core insights of even the craziest quantum ideas apply principles we all understand. The equations for atoms and light are almost literally the same equations that govern musical instruments and sound; the subatomic particles that are responsible for most of our mass are determined by simple geometric symmetries. The universe itself, suggests Wilczek, seems to want to embody beautiful and elegant forms. Perhaps this force is the pure elegance of numbers, perhaps the work of a higher being, or somewhere between. Either way, we don’t depart from the infinite and infinitesimal after all; we’re profoundly connected to them, and we connect them. When we find that our sense of beauty is realized in the physical world, we are discovering something about the world, but also something about ourselves.Gorgeously illustrated, A Beautiful Question is a mind-shifting book that braids the age-old quest for beauty and the age-old quest for truth into a thrilling synthesis. It is a dazzling and important work from one of our best thinkers, whose humor and infectious sense of wonder animate every page. Yes: The world is a work of art, and its deepest truths are ones we already feel, as if they were somehow written in our souls.

    Macfarlane is both a mountaineer and a scholar. Consequently we get more than just a chronicle of climbs. He interweaves accounts of his own adventurous ascents with those of pioneers such as George Mallory, and in with an erudite discussion of how mountains became such a preoccupation for the modern western imagination. The book is organised around a series of features of mountaineering--glaciers, summits, unknown ranges--and each chapter explores the scientific, artistic and cultural discoveries and fashions that accompanied exploration. The contributions of assorted geologists, romantic poets, landscape artists, entrepreneurs, gallant amateurs and military cartographers are described with perceptive clarity. The book climaxes with an account of Mallory's fateful ascent on Everest in 1924, one of the most famous instances of an obsessive pursuit. Macfarlane is well-placed to describe it since it is one he shares. MacFarlane's own stories of perilous treks and assaults in the Alps, the Cairngorms and the Tian Shan mountains between China and Kazakhstan are compelling. Readers who enjoyed Francis Spufford's masterly I May Be Some Time: Ice and the English Imagination will enjoy Mountains of the Mind. This is a slighter volume than Spufford's and it loses in depth what it gains in range, but for an insight into the moody, male world of mountaineering past and present it is invaluable. --Miles Taylor

    It has also been included in the New York State Expeditionary Learning English Language Arts Curriculum. Written by a master storyteller, World Without Fish connects all the dots—biology, economics, evolution, politics, climate, history, culture, food, and nutrition—in a way that kids can really understand. It describes how the fish we most commonly eat, including tuna, salmon, cod, and swordfish, could disappear within 50 years, and the domino effect it would have—oceans teeming with jellyfish and turning pinkish orange from algal blooms; seabirds disappearing, then reptiles, then mammals. It describes the back-and-forth dynamic of fishermen and scientists. It covers the effects of industrialized fishing, and how bottom-dragging nets are turning the ocean floor into a desert. The answer? Support sustainable fishing. World Without Fish tells kids exactly what they can do: Find out where those fish sticks come from. Tell your parents what’s good to buy, and what’s not. Ask the waiter if the fish on the menu is line-caught And follow simple rules: Use less plastic, and never eat endangered fish like bluefin tuna. Interwoven with the book is a graphic novel. Each beautifully illustrated chapter opener links to form a larger fictional story that complements the text. Hand in hand, they create a Silent Spring for a new generation.

    Diane Ackerman draws from sources as diverse as meteorology, world religion, etymology, art history, and poetry in order to celebrate that moment in which the deepest arcades of life and matter become visible. From spring in Ithaca, New York, to winter in Palm Beach, Florida, Dawn Light is an impassioned call to revel in our numbered days on a turning earth.

    Writing with her customary charm and erudition, Dent offers a wonderfully readable and endlessly entertaining exploration of language, answering 101 of the most intriguing questions about the English language, from word origins and spelling to grammar and usage. Dent ranges far and wide in her search for the oddities of language, pondering the ancient origin of the word tragedy (which originally meant goat song in Greek) as well as the modern meaning of the word donk in the Blackout Crew's song title Put a Donk in It. And throughout, the book brims with fascinating tales. Readers learn, for instance, that the word bankrupt comes from the Italian banca rotta or broken bench and the word broke (meaning out of funds) has the same origin. Dent explains that in the sixteenth century, money lenders conducted their business on benches outdoors and the usual Italian word for bench was banca (hence today's bank). The author also provides an entertaining account of the origin of the term white elephant (meaning a useless, burdensome possession) that dates back to ancient Siam, where rare white elephants were always given to the king. But since by law white elephants couldn't be worked (and earn money) or even be ridden, the king often re-gifted these worthless burdens to courtiers whom he didn't like. Sparkling with insight and linguistic curiosity, this delightful compendium will be irresistible to anyone fascinated with language--the perfect gift for word lovers everywhere.