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The Pyle-National Company Plant is a historic industrial plant at 1334 North Kostner Avenue in the Humboldt Park neighborhood of Chicago, Illinois. The Pyle-National Company, which produced lights for steam locomotives and other heavy machinery, built the plant in 1916. The company was founded in 1897 by George C. Pyle, an inventor who patented ...
It can control the temperature, moisture, and especially light regime of the plant based on light emitting diodes (LEDs). LEDs have efficient electric lighting with desired wavelengths (Red+Blue) which support greenhouse production in a minimum time and with high quality and quantity. As LEDs are cool it helps plants to be placed as close as ...
Ficus plant grown under a white LED grow light. A grow light is an electric light that can help plants grow. Grow lights either attempt to provide a light spectrum similar to that of the sun, or to provide a spectrum that is more tailored to the needs of the plants being cultivated (typically a varying combination of red and blue light, which generally appears pink to purple to the human eye).
Beer brewing companies based in Chicago (12 P) Defunct manufacturing companies based in Chicago (2 C, 35 P) Musical instrument manufacturing companies based in Chicago (13 P)
Downsizing and plant closures continued into the 1990s and 2000s, and the US Dept of Commerce estimates that today fewer than 25,000 people are employed in the steel industry in the Chicago–Joliet–Naperville, IL–IN–WI Metropolitan Statistical Area (18,000 of whom are actually in Northwest Indiana.