:=)

On Thu, 2008-12-11 at 23:29, Jon KÃ¥re Hellan wrote:
> Dr. James C. Garland wrote:
> > One of the interesting properties of two-dimensional
> > conductors is that the measured resistance is independent of the spacing
> > between the probes. In other words, one will get the same measurement on an
> > ohmmeter if the probes are one centimeter apart as if they are one meter
> > apart, provided the mat is larger than the probe spacing. 
> > 
> > This result may seem counter-intuitive, but it makes sense if you think
> > about the lines of electic current that flow between the probes.
> 
> Can't resist:
> http://xkcd.com/356/
> 
> Jon LA4RT
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