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Recycle your energy!
Dont throw it away!
Joyful jumping that makes your body and the nature happy.
You can see that many people go to nearby park or school playground for exercise. It is pretty good to do exercise in the late evening, but it becomes dark. Women feel uneasy and look around in the dark place. It would be helpful if there is a light which we can carry while doing exercise. We can clear dark surrounding environment as handy rope skipping add the lighting. As kinetic energy becomes electronic energy, new energy is made with user.
Kyungsung University
Graduate School of Digital Design
Busan, South Korea
Kyungsung University
Busan, South Korea
Lee Hyeon joo