Abstract: Under one aspect, a system is provided for rotating photovoltaic modules arranged in a row. The system can include an elongated structural member extending along and parallel to the row; protrusions coupled to the elongated structural member; an actuator; and drive mechanisms coupled to the photovoltaic modules. Actuation of the actuator can move the elongated structural member, the movement of the elongated structural member can move the protrusions, the movement of the protrusions can move the drive mechanisms, and the movement of the drive mechanisms can rotate the photovoltaic modules.

Abstract: Under one aspect, a system is provided for rotating photovoltaic modules arranged in a row. The system can include an elongated structural member extending along and parallel to the row; protrusions coupled to the elongated structural member; an actuator; and drive mechanisms coupled to the photovoltaic modules. Actuation of the actuator can move the elongated structural member, the movement of the elongated structural member can move the protrusions, the movement of the protrusions can move the drive mechanisms, and the movement of the drive mechanisms can rotate the photovoltaic modules.

Abstract: Under one aspect, a system is provided for rotating photovoltaic modules arranged in a row. The system can include an elongated structural member extending along and parallel to the row; protrusions coupled to the elongated structural member; an actuator; and drive mechanisms coupled to the photovoltaic modules. Actuation of the actuator can move the elongated structural member, the movement of the elongated structural member can move the protrusions, the movement of the protrusions can move the drive mechanisms, and the movement of the drive mechanisms can rotate the photovoltaic modules.

Abstract: A film applicator device for use on a wellplate utilizing a roll of film having an adhesive side. The applicator includes a support for a roll wound by a sheet of film material which lies within a chamber. The chamber includes a mouth with a notch to allow the grasping of the film in order to pay the film outwardly from the chamber.

Abstract: The present disclosure relates to a ride for providing an upward boost to a participant jumping up and down. The flexible rods of this disclosure may be articulated by a base thereby imparting tension in the flexible rods, and providing an upward force to a participant jumping up and down. Additionally, elastic pods may be provided, allowing participants to bounce upward in a addition to the lift provided by the flexible members, thereby enhancing the participant's experience.