What is the secret of how a ship floats?

Answer 1

It's no secret at all. It's a widely known fact, although perhaps not yet by you. Any object
that floats in a fluid does so by displacing an amount of fluid whose weight is equal to the
weight of the object, since the buoyant (upward) force on anything surrounded by fluid is
the weight of the displaced fluid. The same 'secret' applies equally to battleships, beach-balls,
hot-air balloons, and warm fluids rising in cold fluids, as in soup pots and weather fronts.



The same as the "secret" for anything else to float. To float, an object must have less density than the liquid in which it is placed.

Answer 2

It's no secret at all. It's a widely known fact, although perhaps not yet by you. Any object
that floats in a fluid does so by displacing an amount of fluid whose weight is equal to the
weight of the object, since the buoyant (upward) force on anything surrounded by fluid is
the weight of the displaced fluid. The same 'secret' applies equally to battleships, beach-balls,
hot-air balloons, and warm fluids rising in cold fluids, as in soup pots and weather fronts.

Answer 3

The same as the "secret" for anything else to float. To float, an object must have less density than the liquid in which it is placed.