Marvin Recording Barometer

Marvin Recording Barometer

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Description
Charles F. Marvin, recently named professor of meteorology at the U.S. Weather Bureau, designed a new recording barometer in 1904. The inscription on this example reads "Compensated Barograph No. 1, Marvin System, made by Schneider Brothers, N. Y." The word “compensated” here pertains to fluctuations in the ambient temperature. The compensation is in the glass, which expands to offset the temperature effect.
Ref: Charles F. Marvin, “A Mercurial Barograph of High Precision,” U.S. Monthly Weather Review 36 (1908): 307-313.
Location
Currently not on view
Object Name
barograph
date made
1904
maker
Schneider Brothers
Measurements
graph machine: 11 1/2 in x 19 1/2 in x 9 in; 29.21 cm x 49.53 cm x 22.86 cm
glass tube: 40 in x 1 1/2 in; 101.6 cm x 3.81 cm
long black metal device: 6 in x 34 1/4 in x 11 1/4 in; 15.24 cm x 86.995 cm x 28.575 cm
ID Number
PH.316500
accession number
225004
catalog number
316500
See more items in
Medicine and Science: Physical Sciences
Data Source
National Museum of American History
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