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  2. Grow box - Wikipedia

    en.wikipedia.org/wiki/Grow_box

    An example of a stealth, hydroponic, and an industrial-made grow box. A grow box is a partially or completely enclosed system for raising plants indoors or in small areas. . Grow boxes are used for a number of reasons, including the lack of available outdoor space or the desire to grow vegetables, herbs or flowers during cold weather mon

  3. Magnetohydrodynamic generator - Wikipedia

    en.wikipedia.org/wiki/Magnetohydrodynamic_generator

    The Faraday generator is named for Michael Faraday's experiments on moving charged particles in the Thames River. A simple Faraday generator consists of a wedge-shaped pipe or tube of some non-conductive material. When an electrically conductive fluid flows through the tube, in the presence of a significant perpendicular magnetic field, a ...

  4. Harbor Freight Tools - Wikipedia

    en.wikipedia.org/wiki/Harbor_Freight_Tools

    Harbor Freight Tools, commonly referred to as Harbor Freight, is an American privately held tool and equipment retailer, headquartered in Calabasas, California. It operates a chain of retail stores, as well as an e-commerce business. The company employs over 28,000 people in the United States, [5] and has over 1,500 locations in 48 states. [6] [7]

  5. Hydroponics - Wikipedia

    en.wikipedia.org/wiki/Hydroponics

    The same type that is used in aquariums, though any small gravel can be used, provided it is washed first. Indeed, plants growing in a typical traditional gravel filter bed, with water circulated using electric powerhead pumps, are in effect being grown using gravel hydroponics, also termed "nutriculture".

  6. Freight Farms - Wikipedia

    en.wikipedia.org/wiki/Freight_Farms

    Grown by Freight Farms (or "Grown") is an on-site farming service offered by Freight Farms and intended for medium and large institutions like educational campuses, office parks, retail locations, hospitals, and residential buildings. In contrast to an outright container farm purchase, Grown clients subscribe to the service for a period of time.

  7. Hydrogen compressor - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_compressor

    Hydrogen compressors are closely related to hydrogen pumps and gas compressors: both increase the pressure on a fluid and both can transport the fluid through a pipe.As gases are compressible, the compressor also reduces the volume of hydrogen gas, whereas the main result of a pump raising the pressure of a liquid is to allow the liquid hydrogen to be transported elsewhere.