Illustrated Encyclopedia of the Earth

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As organisms die and decompose, they release carbon into the ocean, soil, or atmosphere. Plants and other autotrophs use this carbon for photosynthesis, starting the carbon cycle again. Magnificent. The commentary is great, really thoroughly researched; the pictures are stunning."—Tom Shippey, author of The Road to Middle-earth and J.R.R. Tolkien: Author of the Century

Earth is the planet we live on, one of eight planets in our solar system and the only known place in the universe to support life. A peerless A–Z guide to the names, places and events in the world of J.R.R. Tolkien, fully illustrated in colour throughout by acclaimed Tolkien artist, Ted Nasmith. Plate tectonics are also responsible for landforms such as geysers, earthquakes, and volcanoes. Tectonic activity around the Pacific plate, for instance, creates the Ring of Fire. This tectonically active area includes volcanoes such as Mount Fuji, Japan, and earthquake-prone fault zones such as the west coast of the United States. M2 Lunar tide of the Earth illustrated by the colour shade. The white lines are called co-tidal lines, they meet up at points on the Earth where there is “no tide” or no change in the surface of the ocean due to the M2 tide. The arrows around them show the direction the tide moves about the point (Image credit NASA).planet earth illustration surrounded by hands, Earth Overshoot Day Earth Day, Earth, globe, hand, recycling png 800x800px 806.28KB earth 3D, Low Earth orbit Globe Satellite, Blue Earth Science and Technology, blue, company, computer Wallpaper png 978x971px 617.86KB

Earth is an oblate spheroid. This means it is spherical in shape, but not perfectly round. It has a slightly greater radius at the Equator, the imaginary line running horizontally around the middle of the planet. In addition to bulging in the middle, Earth’s poles are slightly flattened. The geoid describes the model shape of Earth, and is used to calculate precise surface locations. At the same time that it revolves around the sun, Earth rotates on its own axis. Rotation is when an object, such as a planet, turns around an invisible line running down its center. Earth’s axis is vertical, running from the North Pole to the South Pole. Earth makes one complete rotation about every 24 hours. Earth rotates unevenly, spinning faster at the Equator than at the poles. At the Equator, Earth rotates at about 1,670 kilometers per hour (1,040 miles per hour), while at 45° north, for example, (the approximate latitude of Green Bay, Wisconsin, United States) Earth rotates at 1,180 kilometers per hour (733 miles per hour).Eventually, Earth began to cool and its materials began to separate. Lighter materials floated upward and formed a thin crust. Heavier materials sank toward Earth’s center. Eventually, three main layers formed: the core, the mantle, and the crust. The first, and definitive, encyclopedia, The Complete Guide to Middle-earth is now available for the first time as a clothbound deluxe edition, housed in a fully illustrated slipcase, to complement the deluxe illustrated editions of The Silmarillion and Unfinished Tales, and is lavishly illustrated with more than 50 full-colour paintings by acclaimed Tolkien artist, Ted Nasmith, with many appearing exclusively in this edition. earth illustration, Earth Graphic design, Blue earth, blue, globe, happy Birthday Vector Images png 1547x1540px 678.76KB Each journey around the sun, a trip of about 940 million kilometers (584 million miles), is called a revolution. A year on Earth is the time it takes to complete one revolution, about 365.25 days. Earth orbits the sun at a speedy rate of about 30 kilometers per second (18.5 miles per second).

A fascinating, gorgeously illustrated and thought-provoking examination of the landscapes, cities and architecture that inspired Tolkien during his lifelong creation of Middle-earth. . . . Garth, a journalist as well as a Tolkien scholar, proves an exceptional guide to Middle-earth . . . [A] masterful book."—Elizabeth Hand, Washington Post The leading Tolkien critic of the present generation . . . Garth . . . fills this new book with beautiful, opulent maps and photographs that animate the lush atmosphere of Tolkien's real and conjured worlds and yield great visual pleasure. At the same time Garth provides deep access to Tolkien's craft."— Choice Earth Globe World graphy, Creative ads Earth, Earth illustration, globe, computer Wallpaper, information Technology png 1100x733px 897.57KB

All living or once-living materials contain carbon. These materials are organic. Plants and other autotrophs depend on carbon dioxide to create nutrients in a process called photosynthesis. These nutrients contain carbon. Animals and other organisms that consume autotrophs obtain carbon. Fossil fuels, the remains of ancient plants and animals, contain very high amounts of carbon. The Mesozoic era began about 251 million years ago. This was the era when dinosaurs flourished. The Mezozoic has three periods: the Triassic, the Jurassic, and the Cretaceous. The end of Earth will come with the end of the sun. In a few billion years, the sun will no longer be able to sustain the nuclear reactions that keep its mass and luminosity consistent. First, the sun will lose more than a quarter of its mass, which will loosen its gravitational hold on Earth. Earth’s orbit will widen to about 1.7 AU. But the sun will also gain volume, expanding to about 250 times its current size. The sun in this red giant phase will drag Earth into its own fiery atmosphere, destroying the planet.