A solar powered rainbow-making device produces a visual display that is created by the interplay of light and a light refractive element that form constantly changing patterns from a rotating crystal. To provide a corrosion resistance and a favorable electrical connection in the junction between the aluminum foil and backplates for a long time, a gold deposited film is formed on opposite surfaces of the diaphragm. The trigger is positioned on the target body and is remote from the position determination system. The detector is able to determine to fill level of the lower substance even when the upper substance displays a high dielectric constant. The embodiment of the technique includes: manipulating data arriving at a first data interface with a first word width into data with a second word width; transferring the manipulated data to a second data interface having the second word width; and selecting one of a plurality of different word widths for one of the first or second word widths.