Children’s Garden, Huntington Botanical Gardens, San Marino, California
A 5-foot diameter stainless steel bowl is continually filled to the brim with lake water and vibrated with an air-powered oscillator. Intricate wave patterns on the surface of the water reveal the resonant patterns of the bowl. At certain resonant frequencies the water is splashed up into the air. Visitors can reach into the water and feel the shape of the vibrational waves. Completed in 2004.