Energy Scavenging with Shoe-Mounted Piezoelectrics: Article on how to generate electrical energy by walking.Human-powered wearable computing: Article describing the physical limits of generating energy directly by the human.Making a battery pack adaptor for the M1 HMD: explains with photos how to adapt a model-building battery pack for wearables.NRG Research: Produce several battery belts and vests (and professional video lighting equipment). Catalogue online.