memristor n.— «The four passive components of electronics are the resistor, capacitor, inductor and the memristor, which was discovered only a few months ago. Memristors (from memory-resistors, geddit?) are resistors whose resistance...
microhydro n.— «Instead of using a dam to create energy, microhydro uses piping to divert water from a pond or stream. The water is brought to a vertical drop, or head, and falls onto the microhydro system, spinning a turbine, which in...