Rings have a wide range of uses. In jewelry, they are used to adorn fingers, necks (as part of a pendant on a necklace), or wrists (as part of a bracelet). A diamond ring, for example, typically has a precious stone set in a metal ring.
In mechanical or engineering applications, rings can be used as gaskets, seals, or components in machinery. A piston ring in an engine, for example, is a ring - shaped component that helps to seal the combustion chamber and prevent the leakage of gases.
In mathematics and science, rings are also important concepts. In abstract algebra, a ring is a set equipped with two binary operations (usually addition and multiplication) that satisfy certain axioms.
