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X-rays shed light on mystery behind da Vinci’s stroke of genius

Aug 21, 2010 7:05:47 AM - adaderana.lk
The secret of how Leonardo da Vinci captured Mona Lisa’s enigmatic smile can be revealed. Scientists have discovered how the artist managed to achieve his trademark smoky effect, known as sfumato, on the painting - by applying up to 40 layers of extremely thin glaze thought to have been smeared on with his fingers.....