A current source is switchable between two precisely defined output currents. The process in one example comprises Feeding, Heating and Digestion at the set temperature, Discharging of Biogas, Sludge and Effluent. A sensor ground projection is plotted along each associated bearing. The player is allotted one or more numbers for each credit bet. The parent and newly created virtual machine are each linked to one of the new redo logs.