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Still remember the Jumping Light? Similarly, the battery charger designed by Jooyong Kim and Sungkyung Kim also makes a full use of the kinetic energy generated when you jump the rope. Put the rechargeable batteries into the rope’s handles, close the caps, keep jumping and then you’ll get full-charged batteries. That’s so easy! Ensuring you to master the latest information of the calories you’ve burned, the available energy to charge the batteries, etc, the device also comes with a screen on the handle. [Read the rest of this entry...]

Since most of us prefer jumping rope to lose weight, why don’t we make use of the kinetic energy generated during that process? The Jumping Light is just a torchlight which is equipped within the skipping rope handle and powered by the electric energy converted from the power produced while you jump the rope. Though rather simple, that’s really a wonderful idea to recycle the energy. [Read the rest of this entry...]