We release lots of energy when we move. According to the conservation of energy, these the energy was go away. That would be nicer if we could make use of the energy that from sport Designers Hyun Joo Lee & Eu Tteum Lee have designed the holders of the rope skipping into a power plant that energy from sport – energy converting jump rope and flashlight can also use as flashlight after charging completes.
Designers: Hyun Joo Lee & Eu Tteum Lee

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