A UV light is needed to start a chemical reaction on the chemical coating of the Starlight UV Sun Paper. This turns the yellow coating blue. Photography is the practice of creating images with light, ...

Lars Stevens-Cullinane works in a dark room. But he's not processing negatives and printing photographs on light-sensitive paper; he's testing whether brief flashes of light can make drug-resistant ...

We study the use of microfading testing (MFT) to predict the light sensitivity of white (or whitish) paper, an important substrate in virtually all cultural heritage collections. White paper is found ...