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p. 1019. Magnetism on Earth and in spacelocked

  • Stephan Blundell


‘Magnetism on Earth and in space’ considers why the Earth behaves as a magnet, how the Earth's magnetism protects us from deadly cosmic radiation, and also describes the magnetism in various other bodies in the Solar System and further out in the Universe. The magnetism of the Earth is due to electrical currents deep inside the planet. Examples of magnetic phenomena such as animals' use of magnetism for navigation, the colourful light displays of the aurora borealis and aurora australis, and magnetic field reversals are explained and the potential of fusion reactors, using magnets, to create power is discussed.

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