Abstract: A concentrating solar collector that includes a target, a plurality of mirror assemblies, and a master tracking assembly that controls the mirror assemblies is disclosed. The mirror assemblies are fixed at a plurality of distinct locations with respect to the target, each mirror assembly includes a moveable mirror and a tracking assembly. Each tracking assembly includes a target member, a sun member, and a tracking actuator. The target member is fixed relative to the target such that the target member points at the target. The sun member is moveable relative to the target such that when the sun member points to the sun, light from the sun is reflected onto the target. The master tracking assembly moves each of the sun members such that the sun members simultaneously point at the sun. The tracking actuators are mechanical devices that are coupled to the master tracking assembly by a mechanical linkage.

Abstract: A concentrating solar collector that includes a target, a plurality of mirror assemblies, and a master tracking assembly that controls the mirror assemblies is disclosed. The mirror assemblies are fixed at a plurality of distinct locations with respect to the target, each mirror assembly includes a moveable mirror and a tracking assembly. Each tracking assembly includes a target member, a sun member, and a tracking actuator. The target member is fixed relative to the target such that the target member points at the target. The sun member is moveable relative to the target such that when the sun member points to the sun, light from the sun is reflected onto the target. The master tracking assembly moves each of the sun members such that the sun members simultaneously point at the sun. The tracking actuators are mechanical devices that are coupled to the master tracking assembly by a mechanical linkage.

Abstract: A memory constructed from a dielectric layer sandwiched between a plurality of word conductors and a plurality of bit line conductors is disclosed. The dielectric layer includes a layer of ferroelectric material, and has first and second surfaces. The word conductors are located on the first surface. Each word conductor is connected to a corresponding word line driving circuit. The bit line conductors are located on the second surface. Each bit line conductor is connected to a corresponding bit line driving circuit and a corresponding sense amplifier by one or more disconnect switches. A disconnect switch is set to an open state if the bit line conductor connected to that disconnect switch is shorted to one of the word conductors.