《Mars, A Traveler's Guide 》作者：- Ruth Nestvold【EPUB】

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Mars: A Traveler’s Guide by Ruth Nestvold Ruth Nestvold lives in Germany and has a Ph.D. from the University of Stuttgart (but she asks not to be called Dr. Ruth). Since attending the Clarion West writer’s workshop in 1998, she sold stories to Asimov’s, Realms of Fantasy, Strange Horizons, and about a dozen other anthologies and magazines. Her first novel, Yseult, has just been sold to a German publisher. * * * * You have chosen the topic “dust storms” : Dust storms on Mars can encompass the entire planet. Global winds disperse the dust until the entire surface is covered and sunlight is cut off. When sunlight can no longer warm the ground, the effect stops. These storms are connected with the dominant weather patterns and the warmer summers in the southern hemisphere— You have chosen the topic “weather patterns” : Weather on Mars consists of storms made of dust rather than rain. Typically, these storms occur during summer in the southern hemisphere, which on average is warmer than the northern hemisphere because it comes appreciably closer to the sun as a result of the elliptical orbit of the planet. The rapid heating of the surface