Roll

Roll is a motion of a ship where it rotates about its longitudinal axis. It is one of the three primary movements of a ship in water, the other two being pitch and yaw. Roll is caused by the external forces acting on the ship, such as waves, wind, and currents. The degree of roll depends on the size and direction of these forces, as well as the ship's design and stability. Excessive roll can be dangerous and uncomfortable for passengers and crew, and can even lead to capsizing in extreme cases. Therefore, ships are designed with various measures to reduce roll, such as bilge keels, anti-roll tanks, and stabilizers.

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Roll

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