A multi-purpose kitchen knife which enables the user, by using only one kitchen knife, to cut or trim various kinds of food materials. This has been accomplished by using a design that provides a cavity in the lower pole piece inside which is located at least two coils, one on top of the other. An electric motor is operably coupled to the pump and includes a plurality of windings. As a result, an air bubble is formed. It also includes computing a difference frame from the current video frame and a previous video frame \u201con-the-fly\u201d as the current video frame streams into the computer system. The present game promotes vocabulary skill development and creativity and awards originality.