Lightning strikes are displayed as uniformly-structured kernels that decay in size and intensity over time. The assembly has a reinforced concrete vault located underground which contains a fuel tank within its interior. The tape assembly includes a backgrind tape as a base layer, and a film assembly adhered to the backgrind tape. The slip-control processor 64 sends signals to the tension device 22 to increase endless track tension when a track slip condition is sensed, and sends signals to decrease endless track tension when slipping is not occurring, thereby allowing for greater suspension movement and improving overall vehicle mobility. The circuitry and feedback element are incorporated into the medical device such as on the earhook of a behind-the-ear hearing device.