=Introduction= A greenhouse (also called a glasshouse, or, if with sufficient heating, a hothouse) is a structure with walls and roof made chiefly of transparent material, such as glass, in which plants requiring regulated climatic conditions are grown. These structures range in size from small sheds to industrial-sized buildings. A miniature greenhouse is known as a cold frame. The interior of a greenhouse exposed to sunlight becomes significantly warmer than the external temperature, protecting its contents in cold weather.
=Challenges=
=Approaches= <gallery> Cold frame.jpg| Window planter shelf.gif| </gallery>
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! Quantity !! Part !! Link
1 | [https://hozon.com/ Hozon] fertilizer mixer | ||
1 | [https://www.thingiverse.com/thing:3601354 Modular Hydroponics System] | ||
=References= * [https://www.3dagogo.com/3Dponics 3DPonics] * [https://mudpi.app/ MudPi] * [https://en.wikipedia.org/wiki/Ground-coupled_heat_exchanger Wikipedia: Ground coupled heat exchanger] * [https://en.wikipedia.org/wiki/Walipini Wikipedia: Walipini] * [https://en.wikipedia.org/wiki/Greenhouse Wikipedia: Greenhouse]