"Sonic Bloom" by Seattle artist Dan Corson is an interactive, solar-powered art installation recently erected outside the Pacific Science Center in the Emerald City. The work, commissioned by the Pacific Science Center with support from Seattle City Light’s Green Up Program, features five giant solar flowers that absorb the sun’s energy during the day and illuminate at night via patterned LED lighting. As the title of the work implies, "Sonic Bloom" also incorporates an interactive sound element that responds to the presence of nearby viewers.
Sensors located in each flower are triggered by people’s movement, as the 40’ high by 20’ wide super-sized flowers set off a chorus of interactive harmonic tones. Each flower has its own distinctive set of notes, simulating a singing chorus. Engaging the public it is possible to compose and conduct music together, or just by walking through to randomly set off a harmonic sequence. the interactive choral sound component works both day and night providing a dynamic and ever-changing sonic landscape.
The top of each flower is mounted with 46 locally-made photovoltaic cells that collect solar energy which is then fed back into the city’s electrical grid. This feature completely offsets the project's electricity consumption.
(via Design Boom)