Bats Inspire New Cane for Blind | Biomimicry | Scoop.it
From www.bbc.co.uk - October 15, 2012 4:49 AM

The ultrasonic waves used by bats have inspired a new piece of technology which can help blind people to detect obstacles. Developers have come up with stick which can vibrate when it's near objects, so that the user can sense their way around.