High school student from Canada invents revolutionary iAid gadget for blind ...

The IndependentHigh school student from Canada invents revolutionary iAid gadget for blind ...The IndependentThe belt-like gadget comes with a joy stick and works by releasing sound waves that bounce-off objects in the user's path to show how close things are to them. The iAid's workings have been compared to the combination of a whale's sonar and the ...