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

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

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366<br />

EARTH'S SHIFTING CRUST<br />

point <strong>of</strong> my own, was an engineer, and his concepts <strong>of</strong> the<br />

earth's motions were based upon simple mechanics. He understood<br />

gyroscopic action, and the stabilizing role <strong>of</strong> the rim<br />

<strong>of</strong> a rotating flywheel. He also understood the laws <strong>of</strong> cen-<br />

trifugal effect as applied to weights<br />

eccentric to the axes <strong>of</strong><br />

spin <strong>of</strong> rotating bodies. It was my good fortune that Campbell,<br />

who was to carry the work forward, also was a mechan-<br />

ical engineer.<br />

Brown had made the statement that it was the equatorial<br />

bulge <strong>of</strong> the globe that stabilized it with reference to the axis<br />

<strong>of</strong> rotation; he had it compared to the rim <strong>of</strong> a flywheel. I<br />

found that this statement was disputed <strong>by</strong> some physicists.<br />

<strong>The</strong> physicists suggested that the stability <strong>of</strong> the earth on<br />

its axis was not owing to the centrifugal effect <strong>of</strong> the rota-<br />

tion <strong>of</strong> the equatorial bulge alone, but to that <strong>of</strong> the rotation<br />

<strong>of</strong> the entire mass <strong>of</strong> the earth. Later I discovered a passage<br />

in Coleman that appeared to express their point <strong>of</strong> view:<br />

It may be suggested that the earth is a gyroscope, and, as such, has<br />

a very powerful tendency to keep its axis <strong>of</strong> rotation pointing con-<br />

tinuously in the same direction. Any sudden change in the direction<br />

would probably wreck the world completely (87:263).<br />

I wished to obtain a clear statement <strong>of</strong> the rights <strong>of</strong> this<br />

matter. Accordingly, I corresponded with specialists, who<br />

eventually referred me to the works <strong>of</strong> James Clerk Maxwell,<br />

in one <strong>of</strong> whose papers I found the following statement<br />

in support <strong>of</strong> Brown's position:<br />

. . . <strong>The</strong> permanence <strong>of</strong> latitude essentially depends on the in-<br />

equality <strong>of</strong> the earth's axes, for if they had all been equal, any alteration<br />

<strong>of</strong> the crust <strong>of</strong> the earth would have produced new principal<br />

axes, and the axis <strong>of</strong> rotation would travel round about those axes,<br />

altering the latitudes <strong>of</strong> all places, and yet not in the least altering<br />

the position <strong>of</strong> the axis <strong>of</strong> rotation among the stars (296:261).<br />

For the word "axes" in the second line we may read "diame-<br />

ters," and <strong>of</strong> course Maxwell is referring to the inequality<br />

<strong>of</strong> the polar and equatorial diameters, that is, to the existence<br />

<strong>of</strong> the equatorial bulge, to which, therefore, he directly at-

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