Learn the latest breakthrough in solar cooker design from an article which originally appeared in the June 1923 issue of Science and Invention.
Here is the solar cooker built By Dr. C. G. Abbot, assistant secretary to the Smithsonian Institute. Polished aluminum sheets serve as the reflectors.
ILLUSTRATION: MOTHER EARTH NEWS STAFF
The method of regulating the mirror is indicated in the drawing at the left. An alarm clock with a twelve-pin wheel releases an escapement pin secured to a motor movement. The weight turns the mirror to the west a fixed distance every five minutes.