Following is a transcript of the video. Narrator: Oil paint is simple. At its most basic, it's just a mixture of oil and pigment. But depending on the color and quality, a liter of this paint could ...

The fading of a once-vibrant yellow rose reveals how the ravages of time and chemical alteration can dampen the visual power of a painting. Paintings conservator Nouchka De Keyser of the Rijksmuseum ...