| http://www.w3.org/ns/prov#value | - The ratio of the two is the tug-of-war value, and every planetary satellite then known has a tug-of-war value greater than 1 (meaning that the planet pulls harder than the Sun)--except one. (Guess which one!) Continuing Asimov's look at gravity, First and Rearmost is a careful comparison of the electromagnetic and gravitational forces.
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