[TCML] pig Jacobs (don't totally blow off resistive ballasting)

[Tim Meehan]

For copper sulfate, the resistivity equation is:
6586/c^1.22 = specific resistivity in ohm-centimeters if c is in grams per
liter

For ammonium chloride, the resistivity equation is:
512/c^1.03 = specific resistivity in ohm-centimeters if c is in grams per
liter

This works great for cylinders with electrodes at the end, if you are using
some other shape you will have to do your own resistance calculations. :)

(Resistivity * Area of Electrodes)/(Height of Cylinder) = Resistance