Abstract: A turbine apparatus includes a specially shaped fan, designed to be inserted into the wheel of an automobile. During movement of the vehicle, the fan captures the passing air, and a axel/shaft transfers rotational energy to a generator that accumulates the energy and converts it to electrical energy. This energy may subsequently be used to reduce or eliminate emissions in automobiles, trucks, boats, planes, and the like.

Abstract: A supermarket or like vending establishment equipped with a computer having a bar code reader at a checkout counter or terminal. The various shelves for the various items are provided with respective bar codes equipped with individual electronic displays linked to the computer so that these displays can display data at least in part coordinated with the bar code of the respective items stored there above so that the individual items need not be provided with price labels or the like.