| http://www.w3.org/ns/prov#value | - The magnetism is produced by the electric current that drives motors located under the floor; presumably it poses no harm to humans, though it can damage credit cards, mobile phones or other electronic devices left on the floor. (Note, this is a regular train, not a maglev.) There have been instances of multi-track magnetic tapes from recording sessions suffering drop-outs after being left on the
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