Would magn. pole reversal actually mess up electronic equipment?
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From: Don Lancaster on 30 Nov 2009 13:23 Martin Brown wrote: > JJ wrote: >> Hi >> >> this has perhaps been asked before(?) >> >> Apologies in that case. >> >> What I wanted to ask is, if earths magnetic pole now would manage to >> flip in a really quick timespan (let's say less than 5 minutes), would >> that have any effect on electronic equipment, and if so, why? > > On the night side you would see global aurora for a few minutes if the > sun was suitably active. Most satellite electronics will survive all but > the nastiest solar flares. >> >> I mean I would think that the would not be any effect. After all, >> electronic equipment do not rely on earths magnetic field in some way. >> How would they? > > Gauss meters, hall probes and magnetic compass devices and the like > would not be too happy. And all the shims for NMRs would need to be > redone since the Earths field would be the opposite polarity and perhaps > not at the same dip angle. >> >> Or would there be some effect on electronic equipment if the flip >> happened in less than 30 seconds? > > If you flip it fast enough then you could induce damaging currents in > long conductors. That has happened in the past with te most powerful > solar flare storms over Canada eg in 1989. See for example: > > http://www.spaceweather.gc.ca/se-pow-eng.php > > But unless the Earth's field had a similar rate of change to that > experienced in an extreme magnetic storm I think most things would take > it in their stride. Big continental power grids with long wires would be > the most likely to drop out. > > Regards, > Martin Brown It certainly would not do compasses much good. -- Many thanks, Don Lancaster voice phone: (928)428-4073 Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552 rss: http://www.tinaja.com/whtnu.xml email: don(a)tinaja.com Please visit my GURU's LAIR web site at http://www.tinaja.com
From: RST Engineering on 30 Nov 2009 14:44 On Mon, 30 Nov 2009 07:19:02 -0800 (PST), JJ <santa(a)temporaryinbox.com> wrote: >Hi > >this has perhaps been asked before(?) > >Apologies in that case. > >What I wanted to ask is, if earths magnetic pole now would manage to >flip in a really quick timespan (let's say less than 5 minutes), would >that have any effect on electronic equipment, and if so, why? Most probably not, but it would sure raise holy hell if you were flying from New York to San Francisco and you were over Iowa when it happened. Jim
From: Rich Grise on 30 Nov 2009 16:00 On Mon, 30 Nov 2009 07:19:02 -0800, JJ wrote: > > this has perhaps been asked before(?) > > Apologies in that case. > > What I wanted to ask is, if earths magnetic pole now would manage to flip > in a really quick timespan (let's say less than 5 minutes), would that > have any effect on electronic equipment, and if so, why? > > I mean I would think that the would not be any effect. After all, > electronic equipment do not rely on earths magnetic field in some way. How > would they? > > Or would there be some effect on electronic equipment if the flip happened > in less than 30 seconds? > All of the Boy Scouts would get hopelessly lost... Cheers! Rich
From: Joel Koltner on 30 Nov 2009 16:22 "Rich Grise" <richgrise(a)example.net> wrote in message news:pan.2009.11.30.21.00.36.2610(a)example.net... > All of the Boy Scouts would get hopelessly lost... Most of them use GPS receivers these days and wouldn't know how to use a compass in the first places. :-) I think it's kinda cool that orienteering will probably survive indefinitely as a sport, though.
From: Paul Hovnanian P.E. on 30 Nov 2009 16:02
Rich Grise wrote: > > On Mon, 30 Nov 2009 07:19:02 -0800, JJ wrote: > > > > this has perhaps been asked before(?) > > > > Apologies in that case. > > > > What I wanted to ask is, if earths magnetic pole now would manage to flip > > in a really quick timespan (let's say less than 5 minutes), would that > > have any effect on electronic equipment, and if so, why? > > > > I mean I would think that the would not be any effect. After all, > > electronic equipment do not rely on earths magnetic field in some way. How > > would they? > > > > Or would there be some effect on electronic equipment if the flip happened > > in less than 30 seconds? > > > > All of the Boy Scouts would get hopelessly lost... Penguins would appear at the North Pole and polar bears at the South. -- Paul Hovnanian mailto:Paul(a)Hovnanian.com ------------------------------------------------------------------ Do not mold, findle or sputilate. |