From the September 14, 1935, issue
By Science News
TOWER AND INSULATORS SPREAD STEEL NETWORK AGAINST SKY
Symmetry and design typify the Science News Letter cover this week, in the illustration of a modern tower for electric transmission lines. The auxiliary copper leads carrying the current around the giant insulators can be seen hanging in large arcs at the left, near the center. The insulators must not only be of sufficient size to prevent a jump-over of the line voltage at thousands of volts to the ground but should also hinder, if possible, the much higher voltage of lightning strokes.