Everyone has experienced the fact that things feel lighter under water than they do out of water. This is due to a buoyant force upward. The buoyant force is equal to the weight of the liquid that the object displaces. If the liquid is denser, the buoyant force is greater. Steel sinks in water, but floats in mercury. Press the buttons below to see this.

Bubble Suspension

Archimedes' Principle

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