A method of sharing audiovisual content is presented. As a result the substrate support system attenuates if not avoids generating non-planarity in a substrate that results from a presence of particulate contaminants. A method for manufacturing a composite material and a method for manufacturing elements formed of a composite material are also provided. The battery supplies electric power to the memory device and to the wireless communication circuit. A flexible boom structure may be incorporated to facilitate fine positional adjustment of the optical assembly. Mass air flow through each PDAS pump is readily controlled to a predetermined flow by controlling the rotational speed of the pump, obviating the need for an MAF sensor and control valve.