Illustrated Encyclopedia of the Earth

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Tolkien scholar Garth, with the cooperation of the author’s estate, introduces fellow Middle-earth fans to the locales, in Britain and throughout the world, that inspired settings in the Lord of the Rings trilogy and other Tolkien titles."— Publishers Weekly Accompanied with numerous genealogical tables and a unique Chronology of the First Age, it will provide an indispensable aid to every reader’s discovery of Tolkien’s world. The charged particles that int eract with Earth’s magnetosphere are called the solar wind. The pressure of the solar wind compresses the magnetosphere on the “dayside” of Earth to about 10 Earth radii. The long tail of the magnetosphere on the “nightside” of Earth stretches to hundreds of Earth radii. The most well-known aspect of the magnetosphere are the charged particles that sometimes interact over its poles—the auroras, or Northern and Southern Lights.

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Wow. Okay, I really need to win that lottery because there are so many amazing books and/or editions coming out right now I do not even know where to stop.

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 The next step is to try to quantify this tidal variation for each planet and build a model, build a world. Earth is a good start, but let’s not be too specific. We shall start with Earth size and gravity, and tectonically active too because that is important. Let’s leave out continents for now, and just have an ocean world. Earth’s ocean tide, on a water-world version of Earth, would appear as two bulges in the ocean surface around 40 cm high, the currents of moving water within it simply moving one way then the other.

Now let’s focus on why the tide is different on every planet, and there are a lot of reasons; the size, chemical composition, proximity to other stellar objects and many other things are in play to affect the tide on a planet, however here, we will focus on the role of planetary topography; or land and ocean distribution on a planet, and the effect that has on the tide.