Optical Illusion: This Tricky Leaf Illusion Hides the Number ‘47’—Most People Miss It at First Look

A viral optical illusion featuring overlapping leaves hides the number “47,” which most people miss at first glance. The ...
Physics World

Dynamic stimulation of visual cortex lets blind people ‘see’ shapes

A US-based research team has successfully demonstrated how dynamic stimulation of the visual cortex enables blind and sighted people to “see” shapes – a technique that could one day be used to convey ...