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Invisible wrote:
> http://www.xkcd.com/730/
>
> Possibly the most alarming part of this whole thing is the number of
> forum users who have managed to compute the actual resistance of the
> tangle of resistors near the middle.
The computations are not that difficult. For any triangular
configuration of resistors there is a Y-shaped configuration that has
the same resistance, between any two of the three corners, as the
triangular configuration. Repeated substitution, and combination of
resistors in series and parallel, allows the circuit to be simplified.
Regards,
John
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