Cello inexpensive wood that has been blackened or "ebonized" to look like ebony, which is much harder and more expensive. Ebonised parts such as tuning pegs may crack or split, and the black surface of the fingerboard will eventually wear down to reveal the lighter wood underneath. Historically, cello strings had cores made out of catgut, which, despite its name is made from sheep or goat intestines which are dried out. Most modern strings used in the 2010s are wound with metallic materials like aluminum, titanium and chromium. Cellists may mix different types of strings on their instruments. The pitches of
Rackets (sport) Rackets (sport) Rackets or racquets is an indoor racket sport played in the United Kingdom, Ireland, United States, and Canada. The sport is infrequently called "hard rackets", possibly to distinguish it from the related sport of squash (formerly called "squash rackets"). Historians generally assert that rackets began as an 18th-century pastime in London's King's Bench and Fleet debtors prisons. The prisoners modified the game of fives by using tennis rackets to speed up the action. They played against the prison wall, sometimes at a corner to add a sidewall to the game. Rackets then became popular outside the prison, played