An auxiliary amalgam is contained in a light-emitting tube. The two plates are triangular with notches at their apices, with the plates and related structure secured together by bolts through the apex notches. The thickness of the ferroelectric layer is not greater than the size of the bit. For example, an instruction may have a high priority if it has little or no register dependencies or its data is known to be available; or may have a low priority if it has strong register dependencies or is an uncacheable or synchronized storage space load instruction. An Object Image Quality evaluator module evaluates an image quality of an output of the video stream from the video processing module. The second duct member connected to the first duct member encloses the impeller, and has a second opening through which water is sucked from the outside when the impeller is rotated in the reverse direction.