How does a stabilizer function in a submarine?

A stabilizer in a submarine functions by using fins or other devices to reduce unwanted rolling and pitching motions caused by underwater currents or maneuvering. These stabilizers can be active, adjusting their position based on real-time feedback, or passive, relying on their design to enhance stability. By improving the submarine's stability, they help maintain a level orientation, enhancing navigation accuracy and crew comfort during operations. This allows submarines to operate more effectively and safely in various underwater conditions.