An Indian girl looks at her vanished lower body through an optical illusion while participating in an exhibit named "A Head On A Platter" at a science museum in the eastern Indian city of Calcutta. The exhibitions depict sensory illusions and present scientific reasoning for them. Some 55 illusory objects were on show on Friday at the city's most popular science museum. The exhibit gives the illusion of a vanishing body by having the subject stand inside a box that uses mirrors to reflect the tiled pattern on surrounding walls. REUTERS