Changes

===Medieval and Renaissance Developments===

The tradition of fountains in the Middle East never went away after the arrival of Islam in the early Medieval period. In fact, gardens and fountains became more elaborate. Fountains became part of what conceptually represented paradise in Islam. This is similar to the ancient Persian concept, where the word paradise derives from gardens. Pumps now were utilized, including wind-powered pumps similar to those developed by Greek engineers in the Classical period. Underground channels and pipes helped to pressurize and distribute water within enclosed areas, while pumps helped to circulate water around gardens. Fountains now also became designed so that water would come out forming different shapes, including geometric designs. Siphoned water, where the world siphon derives from a Persian word, appear to have been developed to allow water to come out similar to natural springs.