Abstract: An information processing apparatus including circuitry that acquires information indicating a spatial relationship between a real object and a virtual object, and initiate generation of a user feedback based on the acquired information, the user feedback being displayed to be augmented to a generated image obtained based on capturing by an imaging device, or augmented to a perceived view of the real world, and wherein a characteristic of the user feedback is changed when the spatial relationship between the real object and the virtual object changes.

Abstract: A self-holding type solenoid valve has an exciting coil 1 and an exciting circuit that switches the direction of flow of exciting current passing through the coil. When a positive exciting current flows through the coil, a movable iron core is attracted to a stationary iron core and held in the attracted position by a self-contained permanent magnet. When a reversed current flows through the coil, a return spring releases the movable iron core away from the stationary iron core.

Abstract: A humidity sensor is formed by a pair of electrodes fitted on the surface of a flexible insulator film such as a polyester film, the pair of electrodes being arranged adjacent to one another with a suitable gap therebetween. Within the gap between the adjacent electrodes, a rough surface portion is formed on the insulator and/or the electrodes so that condensed dewdrops on the gap are automatically dispersed, and accordingly the sensitivity of the humidity sensor is improved.A video tape recording and/or reproducing apparatus is also disclosed which employs the humidity sensor described above. In this case, the humidity sensor is mounted on the tape guide drum of the video tape recording and/or reproducing apparatus for detecting the humidity thereon.