THE EARTH'S CENTER.--All bodies weigh less the further removed they are
from the center of the earth. A block of stone weighing 700 pounds upon
the sea-shore, will weigh only 699 pounds if carried up a mountain three
miles high. A pendulum oscillates more quickly at the poles than at the
equator, because the earth is flatter by twenty-six miles at the
poles--that is, the "bob" of the pendulum is that much nearer the
earth's center, and therefore heavier, and so swings more quickly.
End of the Project Gutenberg EBook of Burroughs' Encyclopaedia of Astounding
Facts and Useful Information, 1889, by Barkham Burroughs
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