For 28 years from, 1961 to 1989, the Berlin Wall was the epitome - the defining image - of the cold war. I was in Berlin in December 1989, staying with friends and taking a cold chisel to part of ...

But the painters of the Berlin Wall didn’t document their methods. In previous studies of other historic artifacts, scientists brought fragments or even whole objects into the lab and ...

But the painters of the Berlin Wall didn't document this. In previous studies of other historic artifacts, scientists brought fragments or even whole objects into the lab and, without destroying ...