Jason Krugman and Christian Cerrito's art installation, "Solar Sonic Trail" features 10 solar powered kinetic acoustic sculptures. Modeled after the African tongue drum, each sculpture responds to the sun by producing unique percussive sounds. The artists were commissioned by the Schuylkill Environmental Education Center in Philadelphia to produce an renewable energy powered installation for the 2010 Elemental Energy Exhibition.

The sculptures gather, store and release solar energy, lifting and releasing an aluminum and rubber striker. The intensity of the sun determines how often each sculpture raises and drops its hammer, creating sound as a function of the sun's intensity.

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