Archive: 07/03/2007

Original or fake?

Even for art historians, it can be difficult to distinguish original works of art from fakes. Research scientists now screen the pictures with infrared radiation. This shows up the watermarks of the paper ...

Jul 03, 2007 4.7 / 5 (3) 0

Happy, sad, angry or astonished?

How do people respond when they walk past an advertising poster? Do they stop and turn around to look at it with interest or march angrily past? A new system of detailed facial analysis can recognize a person’s ...

Jul 03, 2007 5 / 5 (5) 0