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

Famous quotes containing the word theory:

    “The weakness of the man who, when his theory works out into a flagrant contradiction of the facts, concludes “So much the worse for the facts: let them be altered,” instead of “So much the worse for my theory.””
    —George Bernard Shaw (1856–1950)