A wheelchair includes a frame, and a front pivot arm pivotally mounted to the frame at a front pivot point, the front pivot arm having a caster for supporting the frame. The strobe terminals have a fixed signal level in an inactive mode of the memory device. The receptacle includes at least one translucent or transparent portion, aperture or hole through which light is emitted from said LEDs towards a translucent or transparent portion of a base body of a pushbutton-type switch assembly, and an orifice through which the connection means are connected to an electric circuit. The bow board may comprise an acceleration and angular velocity sensing mechanism, a position and speed sensing mechanism, a data communication module, and a power module. The coil is wrapped about the longitudinal axis, has a first end mated with the angular transition second junction end, and an outer end such that the rotary hub unit permits limited movement of the outer end of the coil. Also disclosed are corresponding or associated three-dimensional supercapacitors or batteries as well as methods for making the same.