Figure 36. Ericsson pneumatic sounder, invented in 1835 by John Ericsson of USS MONITOR fame. This was among the first instruments to use the principle of pressure needed to compress air a given amount to derive the depth of water.
Photo Category: Oceanography - Historical instruments
420 x 640 | 23.12 KB | |
839 x 1280 | 97.46 KB | |
1440 x 2199 | 253.42 KB |
Added On | 18th October 2015 |
Viewed | 11 viewed |