A Russian curator, in collaboration with local scientists, has developed a method for dating artwork made after the first nuclear explosion:

According to the inventors, the new patented technology is based on the idea that man-made nuclear explosions in the 1940s and 1950s released isotopes into the environment that do not occur naturally. The tiniest traces of these isotopes, Caesium-137 and Strontium-90, permeated the planet’s soil and plant life, and eventually ended up in all works of art made in the post-war era because natural oils are used as binding agents for paints.