| Answer | Crossword Clue |
|---|---|
| harnessed | Control and make use of (natural resources), esp. to produce energy |
| harnessing | Control and make use of (natural resources), esp. to produce energy |
| servomechanism | A powered mechanism producing motion or forces at a higher level of energy than the input level, e.g., in the brakes and steering of large motor vehicles, esp. where feedback is employed to make the control automatic |
