Wind Tunnel Footbridge

The Wind Tunnel Footbridge is a new covered bridge for the 21st century; a design proposal for a new kind of wind activated footbridge made of steel and aluminum. As the wind blows, the five wind turbine wheels turn at different speeds around the people who are walking through to reach the other side.

Three of the five wheels turn in one direction while the other two turn in the opposite direction. As the wind driven wheels turn in different directions and at different speeds, they can produce different electronic corresponding sounds.

(via escape)