(NEWSER– Picasso's great works had humble origins: They were painted using house paint, scientists say. Art historians have long debated whether Picasso was one of the first painters to use the standard enamel-based stuff rather than oil paints, but past paint-chip studies couldn't suss out the individual elements with enough precision, reports the New Scientist.

In order to finally answer the question, scientists employed an X-ray nanoprobe—a government-developed machine that offers an incredibly detailed look at materials' chemical components.

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