pl23_ship4243.jpg
Description
Figure 41. Thomson pneumatic sounder, devised by Sir William Thomson, was anextremely simple device designed for use with his sounding machine on a steelline. Although based on the action of pressure on gas or liquids, it also usedthe original concept of using a chemical means to note the depth attained.
Credit
Oceanographic Museum of Monaco
Photographer
Y. Berard
Collection
Voyage to Inner Space
History of Oceanography Collection
The Early Instruments - Collections of the Oceanographic Museum at Monaco
Sounding Instruments
Keywords
Oceanography
Historical instruments