The e-charkha is an ingenious update to India’s ubiquitous charkha [spinning wheel] that transforms the simple machine into a potentially significant source of energy for millions of struggling ...

Scientists at Australia's RMIT investigating the massive untapped potential of wave energy have come up with a novel design for a convertor they say operates with far greater efficiency than ...

Every year millions of tourists and locals descend upon Tibet’s temples and spin the prayer wheels contained inside. If the mechanical energy generated by the movement of these spinning wheels could ...