• David Nightingale
  • Christopher Spencer


Historically, the iron ore magnetite, or lodestone, which is found in various parts of the world, especially in Magnesia, Greece, was known over 2000 years ago to swing around if suspended on a string.


Magnetic Field Field Line Radio Wave Lorentz Force Eddy Current 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Supplementary material

Making a motor (WMV 15755 kb)

MHD demonstration (MPEG 18086 kb)

Falling magnet (MPEG 11440 kb)

311835_1_En_3_MOESM4_ESM.mp3 (3 mb)
Making a radio (MP3 3067 kb)

Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • David Nightingale
    • 1
  • Christopher Spencer
    • 2
  1. 1.New PaltzUSA
  2. 2.HerefordUK

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