Newsgroups: sci.electronics.design, sci.physics.electromag
From: m...@sushi.com
Date: Wed, 23 Jul 2008 20:34:12 -0700 (PDT)
Local: Thurs, Jul 24 2008 11:34 am
Subject: Re: magnetic frequencies of the earth's field
On Jul 23, 5:30 pm, MooseFET <kensm...@rahul.net> wrote:
> On Jul 23, 3:07 pm, Dirk Bruere at NeoPax <dirk.bru...@gmail.com> A bit OT, but any idea why compasses are inaccurate in certain > wrote: > > John Larkin wrote: > > >> I received this link in a letter from the American Academy of Anti-Aging > > >> http://www.quantumstim.com/about/ > > >> Some of what I see in their emails seems legitimate, but this.... > > >> It matches the magnetic frequencies and intensities found in the earth's own > > >> (I guess that's extra, MK) > > >> Comments? > > > Crap. The earth's mag field is so close to static it doesn't matter. > > The only variable natural mag fields occur on day/night boundaries, with > There are short term variations throughout the day on the order of 0.1 > All of these are way smaller that you would produce just by taking a locations as indicated on aviation sectional? Here is an example: http://www.lazygranch.com/temp/magnetic_disturbance.gif You must Sign in before you can post messages.
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