Dance to charge your cellphone

This is not a new idea (yep, when I was 16 I had a wrist watch that was built based on this concept - the simple swing of my arm while walking was enough to power the watch), but at least someone got the idea of using the technology for more recent needs. As a matter of fact, I often wonder why is it that so much (of my) energy is wasted while cycling in those stationary bikes at the gym.



Well, now it's possible to use our body's kinetic energy while practicing several activities (such as dancing, or something more suitable to your taste...) to charge gadgets, such as Orange's DanceCharge that allows you to charge your cellphone.

Source: Engadget