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  2. Drain-waste-vent system - Wikipedia

    en.wikipedia.org/wiki/Drain-waste-vent_system

    A sewer pipe is normally at neutral air pressure compared to the surrounding atmosphere.When a column of waste water flows through a pipe, it compresses air ahead of it in the system, creating a positive pressure that must be released so it does not push back on the waste stream and downstream traps, slow drainage, and induce potential clogs.

  3. Terrarium - Wikipedia

    en.wikipedia.org/wiki/Terrarium

    A temperature-controlled terrarium with plants inside. A terrarium (pl. terraria or terrariums) is a glass container containing soil and plants in an environment different from the surroundings. It is usually a sealable container that can be opened for maintenance or to access the plants inside; however, terraria can also be open to the atmosphere.

  4. Ground-coupled heat exchanger - Wikipedia

    en.wikipedia.org/wiki/Ground-coupled_heat_exchanger

    Generally, dry-and-low-density soil with little or no ground shade will yield the least benefit, while dense damp soil with considerable shade should perform well. A slow drip watering system may improve thermal performance. Damp soil in contact with the cooling tube conducts heat more efficiently than dry soil.

  5. Smudge pot - Wikipedia

    en.wikipedia.org/wiki/Smudge_pot

    Prior to the development of battery-powered safety blinkers on saw-horses, many highway departments used small oil-burning safety pot markers to denote work zones, and many railroad systems still rely on oil-fired switch heaters, long tubs of fuel with a wicks, that fit between the ties and keeps snow and ice from fouling the points of a switch.

  6. Potting soil - Wikipedia

    en.wikipedia.org/wiki/Potting_soil

    A soil test may be done to analyze the chemistry of a potting mix, despite the mix not necessarily being made of soil. As an approximation for indoor home planting, the mix is generally treated as greenhouse growth medium. The main method is a saturated media extract (SME), which tests the chemical contents of a water extract of the mix. [13] [15]

  7. Bottle garden - Wikipedia

    en.wikipedia.org/wiki/Bottle_garden

    This bottle with a lime pothos (Epipremnum aureum) has not been opened or watered since the plant was placed in it several months previously.A bottle garden has the essential requirements of soil, water, and light for the survival of plants and other organisms that are housed in it, as well as a reservoir of water, as water is trapped inside the bottle and unable to evaporate.

  8. Bioactive terrarium - Wikipedia

    en.wikipedia.org/wiki/Bioactive_terrarium

    Dart frogs housed in a heavily planted bioactive display terrarium. A bioactive terrarium (or vivarium) is a terrarium for housing one or more terrestrial animal species that includes live plants and populations of small invertebrates and microorganisms to consume and break down the waste products of the primary species.

  9. Hydroponics - Wikipedia

    en.wikipedia.org/wiki/Hydroponics

    Top-fed deep water culture is a technique involving delivering highly oxygenated nutrient solution direct to the root zone of plants. While deep water culture involves the plant roots hanging down into a reservoir of nutrient solution, in top-fed deep water culture the solution is pumped from the reservoir up to the roots (top feeding).

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