Skip To Make Some Light

With all the energy you expend while jumping rope, imagine using some to power a handy torchlight fitted within the skipping rope handles. Torchlight in any form is a good idea, but the cool quotient in this Jump Light comes from the fact that you won’t need any batteries to power the bulb. It simply runs by converting the kinetic energy from your jumps to electric energy. Now if that isn’t motivational enough for you to skip just a bit more!

source : itechfuture