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:

    “There could be no fairer destiny for any physical theory than that it should point the way to a more comprehensive theory in which it lives on as a limiting case.”
    —Albert Einstein (1879–1955)