A vehicle capable of flight including at least one wing including at least one oscillatory momentum generator mounted therein. A thermoplastic polyurethane may be formed by substituting hydroquinone for the diamine. The illumination compensation is applied to the current coding unit according to the illumination compensation flag. Cache entries of social feeds for the user are refreshed at the host site from the one or more of the plurality of third party sites at an allotted time specified by the refresh schedule. The resinous products of the hydrogenation process may be readily converted to aqueous, alkaline solutions suitable for use in brewing beer. The system includes a pair of pivotable collars mounted about the ends of the transfer roller.