Swing. A swing is a seat, often found at playgrounds for children, at a circus for acrobats, or on a porch for relaxing, although they may also be items of indoor furniture, such as the Latin American hammock or the Indian oonjal.
   The seat of a swing may be suspended from chains or ropes. Once a swing is in motion, it continues to oscillate like a pendulum until external interference or drag brings it to a halt.
   Swing sets are very popular with children. On playgrounds, several swings are often suspended from the same metal or wooden frame, known as a swing set, allowing more than one child to play at a time.
   Such swings come in a variety of sizes and shapes. For infants and toddlers, swings with leg holes support the child in an upright position while a parent or sibling pushes the child to get a swinging motion.
   Some swing sets include play items other than swings, such as a rope ladder or sliding pole. For older children, swings are sometimes made of a flexible canvas seat, of a rubberized ventilated tire tread, of plastic, or of wood. A common backyard sight is a wooden plank suspended on both sides by ropes from a tree branch. Tire swings are a form of swing made from a whole tire. These are often simply a new or used tire hanging from a tree on a rope. On commercially-developed playground swing sets, oversized new tires are often reinforced with a circular metal bar to improve s

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