The chip is small enough to fit in the cavity of the middle ear
A team of researchers from MIT, the Massachusetts Eye and Ear Infirmary and the Harvard-MIT Division of Health Sciences and Technology has harvested the energy of a guinea pig’s inner ear to power a small sensing device. The electrical potential of the cochlea operates like a biological battery and is essential for turning sound pressure waves into the electrical signals sent to the brain. Researchers have developed a chip that can harness this electrical energy without interfering with normal hearing.
Eventually, the devices could monitor biological activity in the ears of people with hearing or balance impairments, or responses to therapies. Eventually, they might even deliver therapies themselves.
Wearable human motion energy harvester
Energy harvesting seems to be one of the next big thing in 2013. I wonder whether the energy is being harvested is actually needed elsewhere. Harvesting from breathing and body heat would probably has no side effect to the person. I would like to understand more about "Harvesting vibrations from heartbeats", etc.
The amount of energy harvested thru these methods is ridiculously small except for the green wheel. You're better off putting a rechargable watch battery into devices along with wireless charging circuitry than use these methods. The exception being research into implantable pacemakers that never need removing.
David Patterson, known for his pioneering research that led to RAID, clusters and more, is part of a team at UC Berkeley that recently made its RISC-V processor architecture an open source hardware offering. We talk with Patterson and one of his colleagues behind the effort about the opportunities they see, what new kinds of designs they hope to enable and what it means for today’s commercial processor giants such as Intel, ARM and Imagination Technologies.