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    Jef Morlion

    The child riding the carousel while carrying the magnet and the charged ball with the magnetometer placed in the center of the carousel is an illustration of an electron orbiting a nucleus. When the carousel is stationary and the kid holds the bar magnet the magnetometer will pick up its magnetic field corresponding to the spin-dipolar contribution of the hyperfine field. When the carousel is rotating with the kid holding the charged ball it will generate the magnetic field picked up by the magnetometer in the center corresponding to the orbital contribution.

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