Stability 3: The Imaginary Center of the Imaginary

'Visualize the Hole Left in the Water'

Now fill that theoretical hole with a uniform material like wax or concrete.

The author is a retired naval architect. He once testified as an expert witness in a case involving a ship that capsized and sank. This is the third of an 11-part series explaining stability to a lay audience.

The useful fiction that displaced water creates an upwards force insid…