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

CAMPBELL'S MECHANISM 365
considerable discussion he added that it was not, however,
necessary to take the present state of our knowledge very
seriously. Future developments might show us how to reach
a different conclusion from the evidence. Much that we re-
gard as knowledge today may someday be regarded as error.
Toward the end of the interview Dr. Einstein indicated a
number of points where further research would be desirable.
He suggested the need for a gravitational study of the Antarc-
tic continent, and for a study of the rates of crustal adjustment
to increasing or decreasing loads of ice. He commented
upon
the difficulties that confront those who wish to intro-
duce new theories, and quoted Planck's remark that theories
change not because anybody gets converted but because those
who hold the old theories eventually die off.
7. Isostasy and Centrifugal Effect
As I have mentioned, there is a possibility of two points of
view regarding the particular centrifugal effect postulated
by Campbell and myself. It is therefore necessary to provide
additional clarification of some of the points at issue. To a
certain extent it may be a question of a situation in which
new definitions or clearer definitions of accustomed terms
are called for, but it also appears to us that in some cases, at
least, physicists whom we have consulted in the course of our
work are proceeding upon the basis of assumptions that are
in conflict with ours. Therefore, it is necessary to re-examine
these assumptions. A comprehensive discussion of the matter
must begin with a review of the broader questions of the
mechanics of rotation already briefly referred to in the In-
troduction.
The existence of a very common misunderstanding re-
garding the mechanics of the earth's rotation, particularly
related to the problem of the stability of the poles, was made
clear to me by a difference of opinion that arose at the be-
ginning of my inquiry. Brown, whose work was the starting