A starter for engines uses a leaf spring as a shift lever for advancing a pinion gear for engagement with a ring gear. After that, the absorption properties of the absorber dye are changed by means of light, to be specific preferably by means of a fixing beam which bleaches the absorber dye in the written region of the polymer film. Both face each other and maintain contour complementarity during both of two modes of operation The cap seals the cavity underneath, and without jeopardizing the sealing, permits entry and exit of the radial ridges and furrows of the first disc into it. The apparatus for measuring fan vibration includes a mounting block that allows the fan to be secured in the opening of the frame and an elastic support for supporting the frame. Lyophilized formulations, including micronized and non-micronized powders, are provided. One or more neolayers may also be bonded to a reroute substrate to create a BGA scale module.