Maybe an electrical appliance is humming, or trees outside are rustling.

CNN: Your detour to a stress-free life

On Pandora, electrical currents flow through the root systems of the trees.

CNN: Review: 'Avatar' delivers on the hype

The utility had more than 1, 600 line workers on the ground to repair electrical equipment and about 1, 200 forestry crews to remove fallen trees and branches.

WSJ: Power Outages May Last Over a Week