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Contact: Marc Airhart
University of Texas at Austin


Caption: The picture depicts the long-range spin-spin interaction (blue wavy lines) in which the spin-sensitive detector on Earth’s surface interacts with geoelectrons (red dots) deep in Earth’s mantle. The arrows on the geoelectrons indicate their spin orientations, opposite that of Earth’s magnetic field lines (white arcs).

Credit: Marc Airhart (University of Texas at Austin) and Steve Jacobsen (Northwestern University).

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