Abstract: A turbine assembly comprises an anchor plate, at least one turbine blade mounted to the anchor plate and having an elongated blade body having a longitudinal axis parallel to an axis of rotation, and the at least one turbine blade being operable to move between a first position relative to the axis of rotation and a second position relative to the axis of rotation.

Abstract: A shield for inhibiting light and heat transfer through the windshield of a vehicle comprises a sheet of substantially rectangular, flexible opaque material. A first stiff, but flexible, elongated rod is attached to the bottom of the sheet of material. This rod and the sheet of material are releasably secured to the vehicle dashboard or the bottom of the vehicle windshield by a suitable fastener to flex the first rod to substantially conform to the inner curve of the vehicle windshield at the bottom. A second stiff elongated rod is attached to the top of the sheet of material, and a hook is provided to releasably attach the second rod to the mounting post for the rear view mirror of the vehicle or to a separate suction cup placed near the top of the vehicle windshield. When the second rod is so attached, the sheet of material substantially covers the inside of the windshield. When the second rod is unhooked from the hook, it may be placed on the dashboard of the vehicle.