LEONARDO DA VINCI's masterpiece the Mona Lisa has captivated art lovers for centuries - but now, a scientist who analysed every inch and layer of the famous portrait has discovered hidden details beneath the painter's brushstrokes.The early 16th Century painting is arguably one of da Vinci’s most famous works and currently resides in the Louvre, in Paris. It’s estimated that 80 percent of their annual 10.2 million visitors attend to see the Mona Lisa. Scientist Pascal Cotte was asked to digitise the painting using a specialist camera, which was able to capture hidden layers beneath the portrait. From his multispectral...