Strings (tennis) be more durable than many other types of strings due to its outstanding tension retention. This may help to offset the high initial cost. The use of a dense string pattern also generally improves the longevity of natural gut. Natural gut is produced by drying fibers extracted from a part of the cow intestine called the serous membrane, or serosa, which contains collagen designed to withstand the stretching and contraction of the intestine. It is this elasticity that makes the fibers useful for tennis string. Sheep intestines have also been used for racquet strings in the past. The first natural
Bolon (musical instrument) Bolon (musical instrument) The bolon is a traditional harp played in Mali, as well as Guinea. It was notably played in hunting ceremonies or before a battle, to rouse warriors' valor. It was also used by the Jola in Gambia for accompaniment for men's choruses. Among other string instruments played in Guinea, the bolon is the oldest. The bolon is a three-stringed instrument, constructed from a large calabash covered by unshaven goat skin, and a bow-shaped neck. When playing, it is placed between the legs with the strings facing the musician. In addition to plucking the strings, the musician also