Gallery›Digital Commonwealth — Boston Public Library›Ultra-Sensitive Machine--George A. Wahl, one of the many war scientists and engineers of Bell Telephone Laboratories and Western Electric Company, measures with microscopic precision the "force-deflection" characteristics of small parts essential in the telephones of our armed forces. This sensitive machine can record even slight changes in shape resulting from shifts in temperature and humidity.
Ultra-Sensitive Machine--George A. Wahl, one of the many war scientists and engineers of Bell Telephone Laboratories and Western Electric Company, measures with microscopic precision the "force-deflection" characteristics of small parts essential in the telephones of our armed forces. This sensitive machine can record even slight changes in shape resulting from shifts in temperature and humidity.
Digital Commonwealth — Boston Public Library

Ultra-Sensitive Machine--George A. Wahl, one of the many war scientists and engineers of Bell Telephone Laboratories and Western Electric Company, measures with microscopic precision the "force-deflection" characteristics of small parts essential in the telephones of our armed forces. This sensitive machine can record even slight changes in shape resulting from shifts in temperature and humidity.

[ca. October 1942]

CC0 — Public Domain
Digital Commonwealth — Boston Public Library

[Information from item housing] Laboratories: Misc. Photos

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