pl23_theb1332.jpg
![Original form of Mendenhall half-second pendulum gravity measuring apparatus theb1332.jpg Original form of Mendenhall half-second pendulum gravity measuring apparatus](https://s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_theb1332.jpg)
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https://www.noaa.gov/media/digital-library-photo/pl23theb1332jpg-0Description
Original form of Mendenhall half-second pendulum gravity measuring apparatus.Figure 3 of William Bowie's Investigations of Gravity and Isostasy
Credit
NOAA Central Library
Display Date
Ca. 1895
Collection
Historic Coast & Geodetic Survey
Keywords
Geophysics
Gravity