USS VINCENNES in pack ice - Captain Charles Wilkes commanding. On the Antarctic shelf, Wilkes sounded with copper wire in 400 fathoms. First use of wire instead of hemp sounding line. Copper too ductile and would break - gave up on idea
Photo Category: Charting - Soundings - Bathymetry - Mechanical
Photo Location: Antarctica, Wilkes Land
Photo Date: 1840
| Added On | 19th October 2015 |
| Viewed | 9 viewed |