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A bow is an ancient weapon that shoots arrows powered by the elasticity of the bow. Energy is stored in the limbs of the bow and transformed into rapid motion when the string is released, with the string transferring this motion to the arrow. The bow is used for hunting, sport (target shooting), and in historical times was a weapon of war. The technique of using a bow is called archery. Someone who makes bows is known as a bowyer, and a fletcher makes arrows. Together with the atlatl and the sling, the bow was one of the first ranged weapons or hunting tools which used mechanical principles, instead of relying solely on strength and skill of its user. (wikipedia)