A white light emitting semiconductor nanocrystal includes a plurality of semiconductor nanocrystals. an electrically conductive base plate,ii. A third common output disc between the first and second input discs has an output gear fixedly attached to an outer periphery thereof. Said one or more signals generated by said logic boards of said one or more sensors. In response to the request, the first user’s terminal transmits the first image at the requested first resolution to the image recipient’s terminal. Included are kits for compositions for and a method of using the compositions.