Sounding lineFrom Wikipedia, the free encyclopedia A sounding line is a way to measure the depth, usually inside a body of water. The basic concept is that of a weight attached to a long rope. Measuring the water depth on a frigate, illustration of 1844.
A sounding line is a way to measure the depth, usually inside a body of water. The basic concept is that of a weight attached to a long rope. Measuring the water depth on a frigate, illustration of 1844.