Abstract: A system for facilitating the recovery of a user's lost item is provided that makes use of tags the user applies to the item and an interactive voice response (IVR) system. When a finder of the item calls a phone number displayed on the tag, the finder is directed to the IVR system. The finder is prompted to identify the item by providing a unique code displayed on the tag. Once the finder provides the unique code, a server in the system receives the phone number and unique code from the IVR system and verifies if there is a user associated with the tag. If so, the server sends a response back to the IVR system to obtain the finder's message indicating the location of the item. After the finder leaves a message, the message is transmitted automatically to the user in real time.

Abstract: A windmill including a hub, at least a pair of rotor roots rotatably coupled to the hub and rotor blades mounted on respective rotor roots, wherein wind forces produce rotation of the blades, the roots and the hub around an axis of rotation passing through the hub and the hub defines a plane of rotation perpendicular to the axis of rotation. Each rotor root is mounted in an initial position at a predetermined compound angle with respect to the axis of rotation and the plane of rotation. The rotor roots are spring biased in an initial position and are coupled to each other and to the hub by means of a spring and linkage members disposed in the hub. Upon rotation of the rotors, centrifugal force acts on the rotors in opposition to the spring biasing and produces synchronous rotation of the blade roots relative to the axis of rotation and the plane of rotation thereby decreasing the pitch of the blades with respect to the wind direction and correspondingly controlling the speed of rotation of the rotors.