Buoyancy is a fundamental concept in physics that explains why certain objects float or sink in a fluid. It plays a crucial role in various fields, including engineering, naval architecture, and even everyday scenarios such as swimming. The principle underlying buoyancy is known as Archimedes' principle, named after the ancient Greek mathematician Archimedes. According to this principle, the buoyant force experienced by an object immersed in a fluid is equal to the weight of the fluid displaced by the object. In simple terms, when an object is submerged in a fluid, it displaces some of the fluid, and the upward force exerted by the displaced fluid is what we refer to as buoyant force.