The invention provides a grease composition containing a thickener, a base oil and an antistatic agent, where the antistatic agent includes at least one selected from the group consisting of Li2N and Li3C; and a mechanical part where the above-mentioned grease composition is packed. The control device possesses a second external bus interface, by way of which visualizing data for visualizing at least one function of the module battery may be applied. In the invention, the network resources are configured for selective access by particular applications or OS. In another embodiment, a method of dispatching an aircraft includes designating a person to perform predetermined dispatching tasks, and establishing a wireless data connection between the aircraft and at least one ground-based facility. In case of a display device, the first emitting layer and the first base layer are structured in order to form an array of pixels of first electrodes suitable to be operated separately by an operation unit in a forward bias mode or a reverse bias mode in order to switch light emission of the EL-layer above each pixel onoff.