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==Modern Changes==
By the late 19th and 20th centuries, fountains lost their function as primary drinking water supplies in many cities. They largely became decorative and purely as symbols of civic pride. New innovations in the 19th centuries included illuminating fountains using electricity, while steam pumps provided a more reliable energy supply to move water. In fact, it was the steam pump in 1845 used in Trafalgar Square that introduced mechanical pumps as part of fountain design. By the mid-19th century,cast iron and aluminum were now used in fountains, with glass also being introduced as part of decorative elements. Fountains began to have different symbolic value as well. In the United States, the Buckingham Fountain in Grant Park, Chicago, new electric pumps were now used that gave the fountain a powerful way to shoot water and be controlled to distribute and push water out, giving the fountain new visual effects.
In fact, Chicago has continued to innovate the modern fountain, where new digital fountains were introduced to Millennium Park, next to Grant Park, that use LED display providing digital images and spouting water features. Musical fountains, likely innovated in the Classical Period, also became more popular. The Bellagio Hotel in Las Vegas is among the most well know, where water timing and display is set to a musical score.
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