There is a story that Oliver Sacks tells on an episode of RadioLab about how he carries these very strong magnetic balls in his pockets, and that these balls are continually re-orienting themselves to the magnetic north, he can simply feel which way is north by the rotation of these objects, essentially a low tech haptic compass. Tactile Sight takes this simple physical protocol to a whole new level.
The Tactile Belt™ is an affordable wearable device that allows you to navigate using only touch. The device frees you from requiring to use your eyes as there is no display, all information is conveyed via touch. It is like using Mapquest or Google Maps but not requiring to use your eyes.
(Via @where20 )
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