Displacement Matters: A large ship pushes aside a huge amount of water. The weight of this displaced water creates enough upward force to balance the ship’s weight, keeping it afloat.

Since management of ballast water discharge becomes mandatory, a ship is obliged to exchange ballast water in open ocean and as far as Put to the Test Finding a superior manner to exchange ballast ...

Take two identical chambers filled with equal amounts of water. They will balance on a scale. Add an object—e.g., a ship—to one of them, and let water of an equal weight out. The two chambers ...