In the course of their discovery, the inventors also discover that these panels can also be used to derive power from light.

Much of their power comes from their ability to bind and control potent genie-like beings called sandestins, while they also derive power from their large stores of magical relics.

The earliest instruments derived power to move the pen directly from the sensed process signal, which limited their sensitivity and speed of response.

The term therefore connotes use of the states lawfully derived powers of regulation and compulsion.

They work out a way of deriving power from some alien technology they find, and slowly start to improve their living conditions.