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How many brush strokes did it take to paint the Mona Lisa? Well, each stroke of the brush was tiny, measuring only a few millimeters long, smaller than a head of a pin. And Leonardo spent four years carefully adding each tiny layer, slowly bringing the face to life. Researchers used x-rays to study the painting and found that it was built up with over 30 ultra-thin layers of
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Researchers used x-rays to study the painting and found that it was built up with over 30 ultra-thin layers of paint, meaning it probably took over 12 million brush strokes just to finish the masterpiece.
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