For your Just Too Cool file… a reader alerted me to a post at Daniel Mitsui’s blog.This, if true, really is just too cool: SOLAR-POWERED NANOTECH-PURIFIED AIR in MEDIAEVAL CHURCHESInformation Week:The glaziers who created gold-painted stained glass windows for mediaeval churches in Europe… developed a solar-powered nanotech air-purification system.According to Zhu Huai Yong, an associate professor at Queensland University of Technology in Australia, the gold paint used in mediaeval-era stained glass windows purified the air when heated by sunlight.For centuries people appreciated only the beautiful works of art, and long life of the colors, but little did they realize that...