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16 résultats pour : 1930s u.s. bureau of standards

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Uncle Sam seeking way to improve theaters for talkies
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Uncle Sam seeking way to improve theaters for talk...

S.D. West of the aerodynamics section of the Bureau of Standards
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S.D. West of the aerodynamics section of the Burea...

Worker at the Bureau of Standards making extensive tests of hollow glass building blocks circa 1938 .
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Worker at the Bureau of Standards making extensive...

A study of the mechanism of the flame propogation in the cylinder of a internal combustion engine is being made at the U.S. Bureau of Standards for the National Advisory Committee for Aeronautics circ...
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A study of the mechanism of the flame propogation ...

The United States Government Air Gun for testing the velocity of baseball at Griffith Stadium circa 1938.
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The United States Government Air Gun for testing t...

Workers at the National Bureau of Standards testing the strength of glass panels circa 1938 .
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Workers at the National Bureau of Standards testin...

A National Bureau of Standards worker conducting experiement to help with movie film preservation circa 1938.
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A National Bureau of Standards worker conducting e...

A National Bureau of Standards worker conducting experiement to help with movie film preservation - folding endurance test circa 1938.
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A National Bureau of Standards worker conducting e...

Tire testing, Bureau of Standards circa 1936.
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Tire testing, Bureau of Standards circa 1936.

Dr. L.F. Curtiss, of the U.S. Bureau of Standards, is shown here with part of the equipment he uses in experiments using radio to gather meteorological data at great altitudes circa 10/17/1935.
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Dr. L.F. Curtiss, of the U.S. Bureau of Standards,...

Government scientists conducting tests on electrical current circa 1938.
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Government scientists conducting tests on electric...

A National Bureau of Standards worker conducting experiement to help with movie film preservation - resistance testing circa 1938.
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A National Bureau of Standards worker conducting e...

Government Waste - Bureau of Standards designs mechanical batter to determine liveliness of baseballs, an example of government wasting money during the Great Depression circa 1938 .
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Government Waste - Bureau of Standards designs mec...

Government Waste - Bureau of Standards designs mechanical batter to determine liveliness of baseballs, an example of government wasting money during the Great Depression circa 1938 .
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Government Waste - Bureau of Standards designs mec...

Scientists Test Auto Ignition
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Scientists Test Auto Ignition

Elinor Smith Parachutes
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Elinor Smith Parachutes