Stable, gel-free, water-in-oil microdispersions comprising a continuous phase of an oil and an emulsifier and a discontinuous phase of an aqueous solution of a hydroxamated vinyl polymer are disclosed. The F-P device comprises a first and second substrate which has partially reflective planar surfaces, and the partially reflective planar surfaces are separated by a predetermined separation distance and aligned to provide a F-P cavity, where one or more piezoelectric members are adapted to displace the first and second substrates when an electric field is applied. The carbon anode cycles reversibly at a specific capacity greater than 100 mAhg. When the second grinding wheel is in a grinding position, the second grinding wheel is situated between the first grinding wheel and a platform mounted on the base support to hold a workpiece. Filler blocks mate with the ends for make square terminal ends of wall segments.