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NOAA Photo Library Image - ship4006

Figure 5. P. Regnard's combination photometer and photometric recording device. Invented by Paul Regnard in 1888 for measuring the intensity and duration of lig light with increasing depth. It was used by Prince Albert aboard a steam tug off Funchal at depths of 20, 30, and 40 meters. The balloon pressure device was not part of the original instrument but added afterwards.

Image ID: ship4006, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Photographer: P. Roggero
Credit: Oceanographic Museum of Monaco

Category: Oceanography/Historical instruments/

High Resolution Photo Available

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Last Updated:
June 10, 2016