complex inequality differs from the gravitating inequalities.
In the complex inequalities the parameter of the dilatation is not the diameter of the grain, but is one half the linear dimension of the volume of the grain displaced taken as spherical.
The intensity of the efforts to revert, in the case of a complex inequality is the product of the pressure multiplied by the product of the volumes of the positive and negative inequalities, and again by the parameter.
Thus we have a purely mechanical explanation of electricity. And not only so, for we have also a determination of what has been a moot question—is electricity one thing or two?
For since the absolute displacement of mass is one displacement, and the expression for the inequality is negative, it is such as cannot be resolved, as hitherto assumed, into two rational factors.
It is interesting to compare the efforts of gravitation with the efforts to revert of electricity.
If we consider the case of two gravitating inequalities, at unit distance, and compare with these a complex inequality, the number of grains and distances being the same, it is found
