Abstract: A puzzle has a cube housing and is solved by rotating the faces into a horizontal plane. Each face has multicolor lamps which are one color when the puzzle is solved. Each lamp may be red, green or yellow by producing red and green together. A microprocessor programmed to read switches in the cube to define the cube orientation and particularly the horizontal face. The processor has a table of algorithms which are assigned to edges between adjacent faces. Upon rotation of the cube about an edge in the horizontal plane, the microprocessor executes the assigned algorithm upon the previously existing display of that face. The microprocessor by referencing to the previous plane and the new plane automatically determines the rotational edge and the direction of rotation to enter and execute the appropriate algorithm. In doing so, the particular lamps are changed from an existing color to that defined by the algorithm.

Abstract: A grounding shielded cable connector assembly is disclosed which is easily assembled and establishes a highly conductive path to ground through two mechanical junctions in the assembly. The assembly is adapted to provide good mechanical and electrical connections between a shielded cable and a grounded metal enclosed cabinet while maintaining adequate protection against deleterious aspects of the environment. A mechanical junction between a cable shield and a cable coupling is achieved by a spring clip and retaining means structure of the coupling to establish a highly conductive electrical junction. A mechanical connector junction between the cable coupling and a cabinet connector, adapted to secure the cabinet connector on a cabinet, is established by a threaded connection. As the cable coupling and cabinet connector are screwed together a high conductivity butting junction is established between them.