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NOAA Photo Library Image - ship4500

Figure 43. Buchanan hypsometer - this instrument is meant to determine altitude by relating the temperature of the boiling point of water to altitude. As altitude increases, the boiling point decreases. The instrument shown uses a method developed by Regnault and was used by John Young Buchanan in 1899.

Image ID: ship4500, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Photographer: Y. Berard
Credit: Oceanographic Museum of Monaco

Category: Oceanography/

High Resolution Photo Available





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Last Updated:
April 30, 2013