From the February 7, 1931, issue

LITTLE WATERWHEEL DOES BIG POWER JOB

Fortunate are those countries that have small rivers falling rapidly, rather than huge, slow-moving streams. Electricity can be generated for these nations easily and cheaply.

To make electricity for Korea from the 2,000-foot fall of a mountain stream will be the life work of the Voith impulse water wheel shown on the front cover.