Medieval stained-glass windows colored in gold nanoparticles help purify air when lit by the sun, a new study finds. “For centuries people appreciated only the beautiful works of art, and long life of the colors, but little did they realize that the stained-glass windows are also, in modern language, photocatalytic air purifiers.” (LiveScience.com)
(Thanks to Sun Star for submitting the story!)
How cool is that! I use to give tours and teach people about stained glass; I wish I’d known… I could have told people that even the unbelievers would benefit from attending a service!