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From: Me, ...again! on 28 Jul 2010 08:13 On Tue, 27 Jul 2010, pete wrote: > Dr. Jai Maharaj wrote: > >> A A magnetic field is one of the Earth's non-physical fields, the >> others being the seismic field, gravity, envelopes and so on. > > What is a seismic field? I'd like to get back to what he thinks a "magnetic field" is, and what his understanding is of a "non-physical field" because every introductory physics book talks about magnetic fields, and in other books going back to very old times when compases were used in ship navigation. > -- > pete > |