| From: | Egil Geir Brautaset <egilbra@***.UNIT.NO> |
|---|---|
| Subject: | Re: aluminum & X-rays |
| Date: | Thu, 10 Mar 1994 17:02:10 +0100 |
> On Thu, 10 Mar 1994, A.M.SPENCER wrote:
>
> >
> > Certain animals (eg sharks) can sense magnetic anomalies.
> > They are so sensitive they can track prey by the electric
> > currents in their muscles. I've been thinking for a while about
> > a nice piece of cyberware to let players do this - any ideas on
> > how it would work?
> > Frank, NetDemon (wannabe) says
> > 'Oh NO - not another one!'
> >
>
> As far as my understanding of physics goes, in your basic urban
> area, there are far too many magnetic feilds from various sources (every
> wire that carries a current has its own magnetic feild) for a device
> that sensitive to work at any range. There would be far too much
> 'background noise'. It might be worth using _outside_ the city....
> I suppose if you could tune it to track a specific type of feild
> (frequency or whatever)....it all depends on how far you want to push
> the tech...how far is too far? Sorry...I'm babbling...
>
> -Lorne the Unborn
Physics isn't my strong suit, but there are two things that comes
into consideration with this:
1: Electromagnetic fields follows the inverse square law, thus limiting
range.
2: Sharks live in water, a medium composed of bipolar (is this right)
molecules, and thus they probably have an easier time sensing magnetic
fields.
-- Egil
