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 ...

Combine yellow and blue paint, and the only light reflected by the pigments will be wavelengths in the green range. This is referred to as “subtractive” color mixing because each pigment is ...

Georg Kremer, modified the recipe. Kremer ultimately produced 100 pounds of powder pigment, only small amounts of which are needed to make a gallon of paint. But Williams was fascinated by more ...