Dynamo Theory

In geophysics, dynamo theory proposes a mechanism by which a celestial body such as the Earth or a star generates a magnetic field. The theory describes the process through which a rotating, convecting, and electrically conducting fluid can maintain a magnetic field over astronomical time scales.

Read more about Dynamo Theory:  History of Theory, Formal Definition, Kinematic Dynamo Theory, Nonlinear Dynamo Theory

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    “No theory is good unless it permits, not rest, but the greatest work. No theory is good except on condition that one use it to go on beyond.”
    —André Gide (1869–1951)