Creating awareness of a problem is important, and that is exactly what this project is attempting to do. This installation of LEDs indicates the quality of the water in which it resides. If the quality is good, the LEDs glow green, and if the quality is bad then the LEDs glow red.

The project, named River Glow, was developed by Soo-in Yang and David Benjamin in only three months, and with a tiny $1,000 budget. The power source is green too, so it won’t be contributing to the pollution problem that it attempts to highlight, “We used floating strips of thin film photovoltaics connected in series to power a rechargeable AA battery. We then re-wired a low-cost pH sensor to detect changes in water quality and trigger an LED connected to uncoated fiber optic strands. The result is an ethereal cloud of light hovering above the water’s surface that changes colors according to the condition of the water below.” ::Inhabitat via EcoGeek

Creating awareness of a problem is important, and that is exactly what this project is attempting to do. This installation of LEDs indicates the quality of the water in which it resides. If the quality is good, the LEDs glow green, and if the quality is bad then the LEDs glow red.

The project, named River Glow, was developed by Soo-in Yang and David Benjamin in only three months, and with a tiny $1,000 budget. The power source is green too, so it won’t be contributing to the pollution problem that it attempts to highlight, “We used floating strips of thin film photovoltaics connected in series to power a rechargeable AA battery. We then re-wired a low-cost pH sensor to detect changes in water quality and trigger an LED connected to uncoated fiber optic strands. The result is an ethereal cloud of light hovering above the water’s surface that changes colors according to the condition of the water below.” ::Inhabitat via EcoGeek