tribology summary

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Below is the article summary. For the full article, see tribology.

tribology , Study of the interactions of sliding surfaces. It includes three subjects: friction, wear, and lubrication. Many manifestations of tribology are beneficial and make modern life possible. Many others are serious nuisances, and careful design is necessary to overcome problems caused by excessive friction or wear. Friction uses up, or wastes, a substantial amount of the energy generated by humans; in addition, a great deal of productive capacity is devoted to replacing objects that have worn out.

lubrication Summary

Lubrication, introduction of any of various substances between sliding surfaces to reduce wear and friction. Nature has been applying lubrication since the evolution of synovial fluid, which lubricates the joints and bursas of vertebrate animals. Prehistoric people used mud and reeds to lubricate