Stability is the ability of a vessel to return to a previous position. Positive stability would then be to return to upright and negative stability to overturn. Stability in it's most basic form is the relationship btween the center of all flotation in you hull (center of bouyancy, or CB) and the center of all weight (vertical center of gravity, or VCG). In other words, the downward pull of Gravity and the uplifting force of Bouyancy. These are the primary characters in this scene and all others play minor rolls...
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