Zothecula writes: Three years ago, we heard about a prototype shoe that could be used to guide the wearer via haptic feedback. Designed by Anirudh Sharma, who was then a researcher at Hewlett-Packard Labs in Bangalore, India, the Lechal shoe was intended for use mainly by the blind. This week, however, Sharma and business partner Krispian Lawrence announced that the production version of the Lechal will soon be available for preorder, and it's aimed at helping all people navigate the city streets. Link to Original Source
"The fundamental principle of science, the definition almost, is this: the
sole test of the validity of any idea is experiment."
-- Richard P. Feynman