An apparatus for controlling a drive device in a rail vehicle includes a computer unit and a memory unit for storing at least one module of a drive control program. The polishing assistant system includes a monitoring device for detecting a first polishing parameter of the polished wafer, and a polishing assistant apparatus. Each tornado busting missile includes a radar, a guidance system and a solid rocket motor for propelling the missile toward the tornado. The platform is configured to be manipulated by a second digit of the hand.