Whenyou upgrade to Extra Class, you gain access to the entire Amateur Radio frequency spectrum. Ues this book to ace the top-level ham radio licensing exam. Our expert instruction will lead you through all of the knowledge you need to pass the exam: rules, specific operating skills and more advanced electronics theory.

    Accounts of 646 species include shape and arrangement of leaves, height, color, bark texture, flowering season, and fruit. Clear, accurate drawings illustrate leaves, flowers, buds, tree silhouettes, and other characteristics.

    For centuries these supremely adaptable, generous trees have supported humankind in nearly every facet of life. From the ink of Bach’s cantatas to the first boat to reach the New World, the wagon, the barrel, and the sword, oak trees have been a constant presence in our past. Yet we’ve largely forgotten the oak’s role in civilization. With reverence, humor, and compassion, Logan awakens us to the vibrant presence of the oak throughout our history and in today’s world.

    Hazen writes of how the co-evolution of the geosphere and biosphere—of rocks and living matter—has shaped our planet into the only one of its kind in the Solar System, if not the entire cosmos.With an astrobiologist’s imagination, a historian’s perspective, and a naturalist’s passion for the ground beneath our feet, Hazen explains how changes on an atomic level translate into dramatic shifts in Earth’s makeup over its 4.567 billion year existence. He calls upon a flurry of recent discoveries to portray our planet’s many iterations in vivid detail. Through his theory of “co-evolution,” we learn how reactions between organic molecules and rock crystals may have generated Earth’s first organisms, which in turn are responsible for more than two-thirds of the mineral varieties on the planet.The Story of Earth is also the story of the pioneering men and women behind the sciences. Readers will meet black-market meteorite hawkers of the Sahara Desert, the gun-toting Feds who guarded the Apollo missions’ lunar dust, and the World War II Navy officer whose super-pressurized “bomb”—recycled from military hardware—first simulated the molten rock of Earth’s mantle. As a mentor to a new generation of scientists, Hazen introduces the intrepid young explorers whose dispatches from Earth’s harshest landscapes will revolutionize geology.

    From Isaac Newton to Mark Zuckerberg, these visionary, determined INTJs have made an impact. But what drives these self-possessed, sometimes mysterious Masterminds? What makes them so uniquely equipped to improve the systems we live with every day?This book is for INTJs and those who live with them, work with them, or just want to know more about them. With an eye toward the INTJ's natural strengths, The True INTJ takes an in-depth look at the talents, motivations, values, and unique qualities of the INTJ. You'll discover what drives the INTJ, and how this innovative, dedicated personality type can use their gifts to change the world.

    Disciples of Darwin have explained how natural selection produced plants, but what about the human mind?In From Bacteria to Bach and Back, Daniel C. Dennett builds on recent discoveries from biology and computer science to show, step by step, how a comprehending mind could in fact have arisen from a mindless process of natural selection. A crucial shift occurred when humans developed the ability to share memes, or ways of doing things not based in genetic instinct. Competition among memes produced thinking tools powerful enough that our minds don’t just perceive and react, they create and comprehend.An agenda-setting book for a new generation of philosophers and scientists, From Bacteria to Bach and Back will delight and entertain all those curious about how the mind works.

    Two dozen new photos and illustrations make this new edition even richer with information. Its convenient paperback format makes it easy to carry and access, whether you are in or out of the garden. An essential overview of the science behind plants for beginning and advanced gardeners alike.

    Little Brutus was destined to remain in captivity or, more likely, even euthanized due to overpopulation at the preserve. Anderson, already an expert in animal rescue and rehabilitation, just could not let that happen to Brutus, who looked like a "fuzzy Twinkie." From the beginning it was clear something special existed between the two. And so, Anderson built the Montana grizzly encounter in Bozeman, Montana, especially for Brutus, so that he, and others like him, could grow up "being a bear." And so the love story began.When together, Anderson and Brutus will wrestle, swim, play, and continue to act as advocates for grizzly protection and education, be it through documentaries like Expedition Grizzly, appearances on Oprah or Good Morning America, or in this inspiring book, which promises to be an intimate look into Anderson's relationship with Brutus and a call to action to protect these glorious animals and the natural world they live in.The Story of Brutus proves that love and friendship knows no bounds and that every care must be taken to protect one of nature's noblest creatures.

    

    Integrated central case studies woven throughout each chapter, use real-life stories to give you a tangible and engaging framework around which to learn and understand the science behind environmental issues. Printed on FSC (Forest Stewardship Council) certified paper, the newly revised Fourth Edition engages you through the addition of new EnvisionIt photo essays.

    It dispels common misconceptions about flies and reveals how truly extraordinary, exotic and important are these misunderstood creatures.There are ten chapters:1. The immature ones - Squirmy wormy larvae can be just a bit unnerving, especially when they're in large numbers.2. The pollinators - Those annoying No See Ums, or midge flies, are the only pollinator of the chocolate-producing cacao tree, a status held by many of the pollinators.3. The detritivores - These garbage eaters are often fluffy and thus water-repellent, good for a life spent in a sewer.4. The vegetarians - Entomological spelunkers, many of these flies prefer plant roots forsaking the leaves to other creatures.5. The fungivores - The mushroom eaters include the dark-winged fungus gnats whose wing patterns are one of the author's favorites.6. The predators - Here are the most devious and imaginative methods of luring, capturing and eating prey.7. The parasites - Their methods of survival are often disgusting but the evolutionary genius is admirable.8. The sanguivores - McAlister responds to the perpetual question, exactly why do we have blood-sucking disease-spreading mosquitos?9. The coprophages - The champions of dung, detritus and other unpleasant things.10. The necrophages - The body eaters without which we would be in a most disagreeable situation.In clear language, McAlister explains Diptera taxonomy and forensic entomology, and describes the potential of flies to transform their relationship with humans from one of disease vector to partner in environmental preservation. She has a wonderful knack for storytelling, deftly transforming what could be dry descriptions of biology, reproduction and morphology into entertainment. She takes readers to piles of poo in Ethiopia by way of underground caves, latrines and backyard gardens, and opens the drawers at the Natural History Museum to rhapsodize over her favorite flies.The Secret Life of Flies is full of stories and tongue-in-check descriptions, but the science is rigorous, authoritative and will be enjoyed by dipterists, lepidopterists, insect enthusiasts, naturalists, and general readers.

    These adorable, furry marine mammals--often seen floating on their backs holding hands--reveal the health of the coastal ecosystem along the Pacific Ocean. Once hunted for their prized fur during the 1700s and 1800s, these animals nearly went extinct. Only now, nearly a century after hunting ceased, are populations showing stable growth in some places. Sea otters are a keystone species in coastal areas, feeding on sea urchins, clams, crab, and other crustaceans. When they are present, kelp beds are thick and healthy, providing homes for an array of sealife. When otters disappear, sea urchins take over, and the kelp disappears along with all of the creatures that live in the beds. Now, thanks to their protected status, sea otters are floating around in coves in California, Washington, and Alaska.Todd McLeish is a science writer with three published books, all on natural history topics: Narwhals, Basking with Humpbacks, and Golden Wings and Hairy Toes: New England Wildlife. He is a popular public speaker on cruise ships and at museums and environmental centers and has published articles on wildlife topics in Earthwatch Journal, Bird Watcher's Digest, WildBird, and Natural New England, among other publications.

    It hold the remains of an ancient sea where dozens of strange creatures lived—a forgotten corner of evolution preserved in awesome detail. In this book Stephen Jay Gould explores what the Burgess Shale tells us about evolution and the nature of history.

    You'll discover how the sun shines, why light is both a wave and a particle, the certainty of the Uncertainty Principle, Schrodinger's Cat, Einstein's spooky action, how to build a quantum computer, and why quantum mechanics drives even its experts completely crazy. 'Jim Al-Khalili has done an admirable job of condensing the ideas of quantum physics from Max Planck to the possibilities of quantum computers into brisk, straightforward English' The Times

    The orchid is used for everything from medicine for elephants to an aphrodisiac ice cream. A Malaysian species can grow to weigh half a ton while a South American species fires miniature pollen darts at nectar-sucking bees. But the orchid is also the center of an illicit international business: one grower in Santa Barbara tends his plants while toting an Uzi, and a former collector has been in hiding for seven years after serving a jail sentence for smuggling thirty dollars worth of orchids into Britain.