The present invention is related to a system and method of caching data employing probabilistic predictive techniques. The subject method and device can be utilized for the delivery of reactive or other substances, such as DNA via the penetration of a target body. A method of making a composite metal sheet for cookware comprising the steps of: providing a roll pack of ordered layers consisting of a layer of Alclad aluminum, a layer of stainless steel foil, a reusable plate or platen of stainless steel, a layer of stainless steel foil, and a layer of Alclad aluminum; heating the roll pack to a rolling temperature of about 725\xb0-775\xb0 F. Determining the compensatory force includes using the derivative acceleration. A gain calculation unit calculates a gain value from the sound pressure ratio and information on the distance.