The theory is relatively simple: Seawater and freshwater, filtered to remove silt, are fed into pipes which lead to a membrane system, made up of spiral coils to maximize surface area.

FORBES: Getting Power From Salty Water

You roll out the refrigeration coils, then in summer roll them up for storage.

FORBES: Magazine Article

In response to the risks, the embassy set up blast barriers, Hesco walls and coils of razor wire.

WSJ: Afghan Church Endures Amid War and Strife

This single work, made up of 53 low-lying pieces, was fashioned by a computer-directed machine extruding coils of cement.

ECONOMIST: Anish Kapoor

In addition, Edifier engineers have freed up valuable internal space within Spinnaker by eliminating a large passive crossover printed circuit board, with coils, capacitors and resistors.

ENGADGET: Edifier's Spinnaker Bluetooth speaker system promises not to hurt you, sells for $350