In an aeroponic system,  mesh pots hang down into the misting chamber where nutrient solution is constantly sprayed around the roots. By providing an optimum nutrient solution and oxygen, plant growth can be explosive.  Maintaining a low root-zone temperature ensures the maximum oxygenation by the plant roots, and so accelerating plant growth.
Have a look at the Nutriculture videos below for overview and setup details for the Amazon Aeroponic System –