Until today there has never been a portrait of the young Leonardo da Vinci.An Italian Science reporter (Piero Angela), spotted a nose amongst some writing in a codex on the flight of birds in one of the Leonardo 's sketch books
Criminal investigation techniques were used to digitally age the new portrait and it was found to be identical to the familiar old da Vinci.
Perhaps one of the rudimentary laws of observation is merely to know how to stumble upon ?
