What is patina?
Patina is the distinctive greenish surface which bronze develops over years of exposure to the air and humidity. Artists also can apply chemicals to bronze to artificially create patina. Bronze can also be polished, which reveals its natural rich gold color.
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EAT( Experiments in Art and Technology) was a movement formed to develop and build collaborations between engineers and artists. It worked by contacting artists and engineers on a person-to-person basis. It was originally launched by artists Robert Whitman and Robert Rauschenberg and engineers Fred Waldhauer and Billy Kluver in 1967. The movement carried out activities and projects that expanded artist's role in the contemporary society.
Carborundum is the trademark name for silicon carbide crystals used as an abrasive material in sandpaper, cutting tools and grinding wheels. Artists originally used the substance for grinding lithography stones, but collagraph prints use it to create texture and tone gradients.
Graphite is a form of carbon usually used to create the core of a pencil. It can be compressed to different levels of hardness. It’s power form is applied using a brush. Graphite erases easily. It was discovered in England’s Lake District in the 1500s.