~RS~q~RS~~RS~z~RS~55~RS~)
The blind rock climber who sees with his tongue
Erik Weihenmayer went blind when he was 13 years old, but new technology enables him to see with his tongue.
The BrainPort device gives him a sense of space and, together with a friend nearby, helps him scale Utah's formidable Castleton Tower.
Inside the Human Body - Building Your Brain is presented by Michael Mosley and can be seen on BBC One at 9pm on Thursday 19 May 2011 and after on BBC iPlayer
Most watched/listened
-
Cruise ship's brush with a bridge
-
Stray dog completes 1700km race
-
Where the world's ships go to die
-
The elusive craft of conducting
-
One-minute World News
-
Syrian government denies massacre
-
Inside national anthem tearoom
-
Buddhism in South Korea under scrutiny
-
Face to face with a Somali pirate
-
The real-life Robinson Crusoe
-
Vineyards buried in the Gobi desert
-
China dog completes 1700km race
-
Tide turning for EU referendum?
-
Sweden wins Eurovision Song Contest
-
US human rights report released
