Aeroponics

Aeroponics means growing plants without the use of soil or any other medium in an air or vaporized water environment. Originally developed to be used in space flights, aeroponic culture differs from both hydroponics and in-vitro (Plant tissue culture) growing. Unlike hydroponics, which uses water as a growing medium and essential minerals to sustain plant growth, aeroponics is conducted without a growing medium - although sometimes aeroponics is also considered a subdivision of hydroponics, as it still uses water, albeit in its vaporized form.