scarf that can make you invisible in photos.

A Dutch man of Indian origin saif siddiqui 

has invented an invisible scarf,called 

ISHU, which blackens the photo of a 

person wearing it when clicked with flash.                                       

But how?

The scarf is made of a special fabric that 

contains thousands of nano-spherical 

crystals that reflect the flash light back 

into the camera,resulting in pictures and 

videos where the wearer is blacked out 

and only the scarf is visible.