Soldiers at the Army Service School in Colorado Springs, Colorado, participating in a demonstration on motors, dynamos, alternating and direct currents as part of their radiotelegraphy training. The soldiers gathered around the apparatus to closely examine the details. This photograph was taken on September 3, 1918, by photographer $5836 from Colorado College.

---

Size: 8479px × 5749px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 3, 1918, actual, alternating, apparatus, army, college, colorad, colorado, currents, demonstrated, direct, dynamos, experimental, experiments, expositions, important, informal, motors, official, photographer, points, radiotelegraphy, school, september, service, soldiers, springs, subject, work