(He dedicated around 3,000 hours to examining Leonardo Da Vinci's famous portrait and says that years of restoration work have eroded the facial hair. Using 240-megapixel scans, Mr Cotte, 49, says he can see traces of a left eyebrow long obscured from the naked eye by the efforts of the restorers. I wouldn't want my face examined on a 240-megapixel scan! They'll be saying she had a moustache and beard next. Please, gentlemen, let us ladies have our little depilatory secrets.)