Encyclopedia > Dynamo theory

  Article Content

Dynamo theory

The dynamo theory of Earth's magnetic field is a theory which argues that the convection of molten iron and nickel, within the planetary core, along with the overall planetary rotation; result in the creation of electric currents and a magnetic field. The internal convection currents are similar to those, involving water vapor, within a thunderstorm.

See also:

All Wikipedia text is available under the terms of the GNU Free Documentation License

  Search Encyclopedia

Search over one million articles, find something about almost anything!
  Featured Article
Constantine I of the Roman Empire

... the Great) (272 - May 22, 337), proclaimed Augustus by his troops in 306; and ruled an ever-growing portion of the Roman Empire to his death. He was born at Naissus[?] ...