Cobalt Glass

Plus: Are stamps without glue worthless? It depends.

Way back in 2014, a Dutch manuscript from about mixing watercolors from 1692 made a splash in the blogosphere, because while it was centuries old, few had given it much attention and it was such a beautifully preserved thorough account of how watercolors were mixed back then. Ever since then, I thought it had potential as a fun project but avoided creating one due to language barriers and other reasons that turned…

Advances in painting in early modern Europe were the product not just of artistic innovation but of changes in mining and manufacturing technology.

A Tyco train set and official White House tree ornaments are among vintage holiday items on display at the Alle-Kiski History Center in Tarentum. The exhibit takes people on a sentimental walk through the decades, with offerings from the 1920s to present day. "People have left us toys and dolls,

Zachary Fine on the German Romantic painter Caspar David Friedrich's paintings, and on Germany's celebrations for the artist's two-hundred-and-fiftieth birthday.

Prussian blue binds with gold and platinum-group metals thanks to jungle gym structure.

After a lengthy legal battle, former PIMCO CEO Bill Gross and his wife, Amy Gross, have won approval from the city of Laguna Beach to keep their $1 million 10-foot-tall cobalt glass sculpture.