In this fascinating demonstration, we witness something seemingly impossible: a heavy steel anvil floating effortlessly on a pool of mercury. At first glance, the dense, imposing anvil appears destined to sink like a stone. Yet, when gently lowered onto the mercury, it remains buoyant, defying intuition. How does this happen? The key lies in the physics of buoyancy and density. According to Archimedes’ principle, an object immersed in a fluid experiences an upward force equal to the weight of th