From: Me, ...again! on


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
>