Ke Alakai o Hawaii, Volume VI, Number 11, 13 July 1933 — GIANT THERMOMETER IN SIIAFT 21 STORIES HIGH [ARTICLE]
GIANT THERMOMETER IN SIIAFT 21 STORIES HIGH
Temperatures..at the Century 0f Progress exposition in Chicago are being flashed to visitors by a giant thermometer. Th6 tower is 218 fect high, constructed of steel and sheet inela,!, with a 150-foot eolumn of neon-light tubos to represent the mercury. Tliis eolumn js nj.ade o£ ,tubes coupled in sectioru representing one degree of temperature, As the temperature changes, a master thermom.eter controls the lighting or darkqning of the neon tubes.