The fall of the Berlin Wall in November 1989 was a seminal moment in 20th century history, paving the way for German reunification. Many segments, both large and small, were preserved for ...

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 ...

Nadine Peez likes chrysanthemums, so much so that she painted this watercolor of the flower overlaid with the molecular structure of chrysanthemin. The eponymous chemical is a pigment that contributes ...

Street art takes many forms, and the vibrant murals on the Berlin Wall both before and after its fall are expressions of people’s opinions. But there was often secrecy around the processes for ...

Emerald green has long promised a vivid, almost electric color on canvas and paper, yet the same chemistry that delivers that brilliance quietly primes it to fail. Over time, many of these greens ...

People have been using pigments to create art for centuries. But not all pigments are the same. Some change color over time, some are made of rare materials that are difficult to find, and some might ...

Emerald green’s photooxidation from As 3+ to As 5+ is well known and has been previously reported in the literature, Monico says, but the effect of humidity on the pigment was less understood. What’s ...

Creating your own paint is a great way to cut costs while exerting greater control over the shades and effects you desire. Dry pigment powder can be combined with binders to create a variety of ...

A long-lost medieval green has been revived in living color thanks to SUNY Cortland’s Chemistry Department. “Iris Green,” a pigment extracted from the petals of blue iris flowers, was popular in the ...