Okra, tomatoes, lettuces, beans, pepper, kale, peas, cucumbers, arugula, and basil are growing in the Window Farm on display in Eyebeam's window gallery. The hydroponic system includes a pump in a reservoir on the floor which pushes water and nutrients to the pipe at the top. The nutrient solution then drips through the columns of plants which are resting in suspended recycled water bottles. Low energy bulbs supplement natural light. This Window Farm was built using low-cost, easily accessible materials. It represents one in a series of designs for low-energy, high-yield DIY hydroponic vertical farms that are suited to small New York city spaces. windowfarms.org.