The Earth's Shifting Crust by Charles Hapgood - wire of information

CAMPBELL'S MECHANISM 343
examine with some care the mechanism that Campbell pro-
poses as an explanation of displacements.
2. Calculating the Centrifugal Effect
I have already mentioned how preliminary calculations were
made of the possible centrifugal effect of the Antarctic cap.
I have mentioned that the calculation was first made by
Buker, and later somewhat revised by Campbell. However,
Campbell recognized, early in his examination of the theory,
that this effect, since it operated at right angles to the axis
of rotation and was not tangential to the surface, would not
produce a horizontal movement of the crust, even if the
magnitude of the effect was sufficient for the purpose. It
would be necessary, he felt, to find the tangential component
of the total quantity of the centrifugal effect. He ac-
complished this by the application of the principle of the
parallelogram of forces (Figure XII). However, his use of the
METRIC TOWS
Fig. XII. The Centrifugal Effect of the Icecap. Use of the Parallelogram
of Forces to Calculate the Tangential Component