Page 143 - For Men of Understanding
P. 143
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The dam built by beavers blocks the water at an angle of exactly 45 . This
means that the animal does not build its dam by throwing branches in the
water at random, but in a carefully planned manner. What deserves attention
here is that all modern hydro-electrical power stations are built at the same
angle today. In addition, beavers do not make the mistake of completely block-
ing the water. They build the dam in such a way that it keeps the water at the
desired level and leaves special canals for excess water to run through.
