WIMP Orbiting inside Earth

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This Demonstration shows a possible orbit of a hypothetical WIMP (weakly interacting massive particle) that is acted upon only by the force of gravity, moving inside planet Earth, with a given initial position and velocity. The orbit of the WIMP is shown in blue, with Earth shown as a green disk. All parameters are expressed in terms of meters and seconds. It is assumed that Earth's density is uniform, equal to its average value.

Contributed by: Isaac Grosof,Kathleen Guinee, Kyle Wunderlin, and Savannah Dixon (June 2011)
Open content licensed under CC BY-NC-SA



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