At the turn of the 20th century, plaster was the most popular interior wall covering in North America, and it remained so for the next several decades. But things have changed since then. Drywall ...

Just why the Romans did this, though, remains a mystery. The experts that made the discovery found that the natural ...

Gypsum, a natural mineral made largely of calcium sulfate dihydrate, has a variety of uses dating back centuries, from lining walls to serve as a fire retardant for Mesopotamians to a plaster ...