Dynamo theory
Mechanism by which a celestial body generates a magnetic field
Dynamo theory
In physics, the dynamo theory proposes a mechanism by which a celestial body such as Earth or a star generates a magnetic field. The dynamo theory describes the process through which a rotating, convecting, and electrically conducting fluid can maintain a magnetic field over astronomical time scales. A dynamo is thought to be the source of the Earth's magnetic field and the magnetic fields of Mercury and the Jovian planets.
Read on Wikipedia · Image Andrew Z. Colvin, CC BY-SA 4.0
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