Now revised and updated to reflect recent findings in brain research, this book guides parents, teachers, and caregivers as they gauge the level of development of an individual child's brain.

    Blending keen observations of flora, geography, and geology, the natural forces that shape the landscape, and the changing seasons, Muir paints a timeless portrait of the wilderness he called “the Range of Light, the most divinely beautiful of all the mountain chains I have ever seen.” Also included are visits to two famous Cascades peaks, Mount Shasta and Mount St. Helens

    A guide to volcanoes with the gritty bits left in! Read the diaries of volcano survivors; get clued-up with the spotter's guide to eruptions; plan an explosive holiday with the volcano vacation guide; marvel at red-hot volcanic rocks the size of cars; and tremble before boiling hot geysers.

    Their only chance of survival is to retrieve a lost artifact, the legendary Solland Runfang.

    A guided tour of the physical Internet, as seen on, above, and below the city s streets What do....

    The book & later film made a major contribution to awareness, outside anthropological & archeological communities, of both the island & the statues. Much of his evidence has now been refuted by archeologists. His methods have been criticised. Paul Bahn wrote: "he relied on the selective use of evidence, which resulted in a misleading conclusion". Heyerdahl is most controversially associated with an attempt to revive the theory that the islanders' stone carving technology came from S. America. He argued that as well as being settled by Polynesians, Easter Island was settled by people from Peru, an area described as "more culturally developed". "Aku-aku" refers to moving a tall, flat bottomed object by swiveling it alternatively on its corners in a walking fashion. Heyerdahl theorised the Easter Island Moai (statues) were moved in this fashion, & tested this on a small Moai--tho the test was abandoned after the Moai's base was damaged. He also asserts that for the islanders, Aku Aku means a "spiritual guide." Heyerdahl compared the highest quality stonework on the island to pre-Columbian Amerindian stonework such as at Tihuanaco. Seemingly unaware of Polynesian stoneworking traditions such as the Marae he said of Ahu Vinapu's retaining wall "No Polynesian fisherman would have been capable of conceiving, much less building such a wall". However Alfred Metraux had already pointed out that the rubble filled Rapanui walls were of a fundamentally different design to those of the Inca. Heyerdahl claimed a S. American origin for some Easter Island plants including the Totora reeds in the islands' three crater lakes which are now recognised as a separate species to the ones in Lake Titicaca. Also the Sweet Potato, which is now reckoned to have been in Polynesia before Easter Island was settled.

    It offers readers who work through it one possible outline for a grammatical description, with many questions designed to help them address the key topics. Appendices offer guidance on text and elicited data, and on sample reference grammars that readers might wish to consult. This will be a valuable resource to anyone engaged in linguistic fieldwork.

    It's goal is the successful design and operation of chemical reactors. This text emphasizes qualitative arguments, simple design methods, graphical procedures, and frequent comparison of capabilities of the major reactor types. Simple ideas are treated first, and are then extended to the more complex.

    It uses a taxonomic approach for the study of pathogens.

    It follows a more quantitative and design-oriented approach than other texts in the market, helping readers gain a better understanding of important concepts. They'll also discover how material properties relate to the process variables in a given process as well as how to perform manufacturing science and quantitative engineering analysis of manufacturing processes.

    Explaining the nature of genetic variation in the human population, how hereditary factors were identified as molecules of DNA, and how certain specific mutations can lead to disease, Slack highlights how DNA variants are used to trace human ancestry and migration, and can also be used by forensic scientists to identify individuals in crime. Slack also explores issues such as the role of genetic heritability and IQ as well as the changes that occur in the genes of populations during evolution. An ideal guide for anyone curious about what genes are and how genetics can be put to use, this Very Short Introduction demonstrates the ways in which the gene concept has been understood and used by molecular biologists, population biologists, and social scientists around the world. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.

    The opening section, Ninety Years of Mapping at National Geographic, traces the founding of Geographic cartography to the present advances in technology and the practice of compiling and organizing geographic information. The atlas truly begins with three stunning new, full-spread world maps, that drape Earth's surface seamlessly with satellite imagery, then physical and natural features, and finally today's political world of countries and growing cities.World thematic topics are organized into two groups: the Physical and Natural World and Human Activities. The Physical and Natural World section includes captivating core topics such as the evolution of earth, geology and tectonics, climate and weather, oceans, world water, the bioshere, and biodiversity. Human Activities covers 11 world themes: population, migration and refugees, conflict and terrorism, cultures, economy, energy and minerals, communications, food, health and education, the environment, and ending with wildlands. All of these intriguing spreads reflect the most authoritative and recent data available and are reviewed by preeminent scholars and experts. Lined up after the world thematic focus is the continental division. All seven continents open with views from space and are then represented with separate physical and political maps. Larger scale regions of each continent are presented for higher definition and detail. Because of our primary readership, additional coverage is given to the UnitedStates and Canada. An entirely new component to the Eighth Edition is the city section. Maps and text discussing urban explosion will open this compilation of sixty new maps. Pictures, fact boxes, and text will accompany each city map to create colorful and informative portraits of our built environment. Selected cites such as, New York, Mexico City-the most densely populated city in the world, and Paris will receive more detailed scaling. Less familiar and remote areas of the world and beyond-the poles, the ocean floors, and space-are mapped with new data and findings and dramatic effects. The addition of a new spread and map devoted to Mars will provide a timely reference to the expected news coverage of NASA's Mars Exploration Rover Mission-Spirit and Opportunity. Flags and facts of every country in the world have been newly designed and consolidated into one section, listed in alphabetical order. Locater maps and cross referencing to corresponding large-scale map plates are provided for every entity. Text for each independent country summarizes physical and cultural aspects, while facts reveal the status of population, religion, area, capital, language, literacy, life expectancy, GDP, and economy. A user-friendly, 136 page, comprehensive place-name index cross-references over 130,000 geographical sites and areas. An appendix presents valuable, convenient reference to time zones, metric conversions, foreign terms, abbreviations, airline distances, and temperature and rainfall statistics from all corners of the globe. Navigating throughout the atlas is made easy with enhanced cross-referencing, pointers, labels and an end sheet that includes a visual key with corresponding platenumbers to all the maps. Every map spread in the atlas will include interactive features and access to up-to-the-minute updates and information via the electronic National Geographic Map Machine. Streams of information are available to us on myriad topics and on many fronts. At the same time, there is a need-greater than ever-to better understand our global culture. The Eighth Edition helps bridges the gap with a collection of maps and information that is as engaging as it is informative.

     It also features maps, including a fold-out world map at actual size. Readers will learn about every country from Afghanistan, "Allah's Cat Box," to the Ukraine, "The Bridebasket of Europe." Today's news-parody consumer cannot possibly understand made-up current events without the context of fake world history and geography. That is why The Onion is publishing a world atlas: to help us. Our Dumb World is an invaluable tool for any reader interested in overthrowing a weakened government in East Asia, exploiting a developing nation in Africa, or for directions to tonight's party at Erica's. It is a reference guide to 250,000 of the world's most important places, such as North Korea's Trench of Victory, the Great Human Pyramid of Egypt, and Saudi Arabia's superhighway, the Mohammedobahn.

    But what if, nonetheless, Einstein got it wrong?Since the 1930s, physicists have noticed an alarming discrepancy between the universe as we see it and the universe that Einstein's theory of relativity predicts. There just doesn't seem to be enough stuff out there for everything to hang together. Galaxies spin so fast that, based on the amount of visible matter in them, they ought to be flung to pieces, the same way a spinning yo-yo can break its string. Cosmologists tried to solve the problem by positing dark matter—a mysterious, invisible substance that surrounds galaxies, holding the visible matter in place—and particle physicists, attempting to identify the nature of the stuff, have undertaken a slew of experiments to detect it. So far, none have.Now, John W. Moffat, a physicist at the Perimeter Institute for Theoretical Physics in Waterloo, Canada, offers a different solution to the problem. The cap­stone to a storybook career—one that began with a correspondence with Einstein and a conversation with Niels Bohr—Moffat's modified gravity theory, or MOG, can model the movements of the universe without recourse to dark matter, and his work chal­lenging the constancy of the speed of light raises a stark challenge to the usual models of the first half-million years of the universe's existence.This bold new work, presenting the entirety of Moffat's hypothesis to a general readership for the first time, promises to overturn everything we thought we knew about the origins and evolution of the universe.

    Is there some way we can get our minds around these disparate global upheavals, to grasp these events and their interconnections, and place our turbulent world in a more understandable light? Acclaimed author Harm de Blij answers this question with one word: geography.In this revised edition of the immensely popular and influential Why Geography Matters, de Blij tackles topics from the burgeoning presence of China to the troubling disarray of the European Union, from the dangerous nuclear ambitions of North Korea to the revolutionary Arab Spring. By improving our understanding of the world's geography, de Blij shows, we can better respond to the events around us, and better prepare ourselves to face the global challenges ahead. Peppering his writing with anecdotes from his own professional travels, de Blij expands upon his original argument, offering an updated work that is as engaging as it is eye-opening. Casual students of geography and professional policy-makers alike will benefit from this stimulating and crucial perspective on geography and the way it shapes our world's events.America, de Blij warns, has become the world's most geographically illiterate society of consequence. Indeed, despite increasing global interconnectivity and rapid change, Americans seem to be less informed and less knowledgeable about the rest of the world than ever. In this compelling volume, de Blij shows why this dispiriting picture must change, and change now.