A microprocessor simulation method, system, and program product built upon the underlying hardware design of the microprocessor. The engine may be operating in two-stroke and four-stroke modes while still maintaining a target exhaust air-fuel ratio. It also enables a person to reach remote areas that only can be reached by a ladder but the person cannot negotiate a ladder. Rotation of the second rotating element is prohibited to rotate the third rotating element in a direction opposite to the rotational direction of the first rotating element. The data collection and analysis processes also include processing the energy consumption data and the emissions data as a function of the mileage data, calculating an efficiency rating from the processing, and transmitting results of the processing to a data collection system. A tomographic scanner is configured to capture a scout image of a patient.