Balloon "Robot" Radios Weather Reports. This is the newest device to be used by the U.S. Weather Bureau in exploring the stratosphere, and it sends down radio reports of temperature and atmospheric pressure as it rises. A photo electric cell translates thermometer and barometer readings into radio signals. The photograph was made in Washington, D.C.

Digital Commonwealth — Boston Public Library

Balloon "Robot" Radios Weather Reports. This is the newest device to be used by the U.S. Weather Bureau in exploring the stratosphere, and it sends down radio reports of temperature and atmospheric pressure as it rises. A photo electric cell translates thermometer and barometer readings into radio signals. The photograph was made in Washington, D.C.

Associated Press · [ca. August 1932]

RightsCC0 — Public Domain

CollectionDigital Commonwealth — Boston Public Library

[Information from item housing] Weather: Misc: Balloons

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