E-Charkha Wheel Spins Yarn Whilst Generating Energy, Karma

Impoverished Indian families can look into getting the e-charkha, an electricity-generating version of the ubiquitous yarn-making spinning wheel, as a way to increase productivity without a boost in energy costs. The e-charkha, designed by RS Hiremath, generates juice as the charkha spins and diverts it into a free… » 10/27/08 11:00pm 10/27/08 11:00pm