designer's own words:Recently, the city in Korea installed many public exercise machines. The citizen are loving these machines. They take exercise to public exercise machines everyday. If Small energy by exercising will be gathered. Small Energy changes very big energy, and using the one are our environment and our selves. Energy that is generated by the exercise machines gatheres in the center tower. It supplyes around local regions. Such generating the eco energy is influence the human’s life style. This one is small but big energy for ourselves.