Batty Trials

[paigetheoracle]

I see from a report in Metro (February 11th)that a trial has been carried out using tongue clicking, to help the blind find their way around in the same way bats do, through echolocation ((Prof. Gordon Dutton, ophthalmologist, Glasgow).

I remember seeing a Program on Channel 5 about a coloured boy in the States that had learned to do the same thing, which made me wonder if this is where they got the idea and if so, had they credited him with the idea, as they should have?

[freeztar]

Checkout the movie "Ray", about Ray Charles. In the movie it shows Ray (Jamie Foxx) using the technique you speak of (except with a cane, not tongue clicking...same concept though).
It's a good movie overall.