Since 1982, PCMag has tested and rated thousands of products to help you make better buying decisions. A Back button at lower left lets you reset and restart the animation. (Doing any of these things stops it from rotating by itself, however.) At the screen's upper left are a Home button and a musical note icon, which lets you turn the music on and off. You can shrink or enlarge the globe by pinching or stretching, or rotate it to view a different side of the Earth. When you open the app, a realistic-looking, rotating 3D representation of the Earth is at the center of the screen, with ambient music playing. The app gives some useful information, though some sections are quite cursory, it has more than its share of linguistic errors, and the 3D globe is really just for show. Each section includes illustrations, many of them 3D animations. Planet Earth 3D (for iPad ($389.99 at eBay) (Opens in a new window) ) is an Earth science educational app that provides an overview of our planet, its oceans, continents, and ecosystems, its internal structure and atmosphere, its rotation (and its relation to the seasons) orbit around the Sun, and the Moon.
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