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piezoelectric processors

For decades, electronic circuitry has been shrinking at a famously dizzying pace. Too bad the batteries that typically power those circuits have not managed to get much smaller at all. In today’s wrist-worn GPS receivers, matchbox-size digital cameras, and pocketable personal computers, batteries are a significant portion of the volume. And yet they don’t provide nearly enough energy, conking out seemingly at the worst possible moment.
Spectrum01330808.pdf (application/pdf Object)