[nfb-talk] sonar for blind

[T. Joseph Carter]

Chuck, that’s the real travesty right there—the notion that at age 12 
you finally need to start learning how to walk on your own!  This is 
a pet peeve of mine (I have so many!) so I’ll stop before I get 
started.  *grin*

Joseph - KF7QZC


On Thu, Jul 21, 2011 at 05:19:19PM -0700, ckrugman at sbcglobal.net wrote:
>Actually, I remember doing similar things as a small child to go 
>around the house or the neighborhood berfore beginning mobility 
>training at about age 12. I have a small amount of vision where I can 
>see objects and shadows but no detail or color.
>Chuck
>----- Original Message ----- From: "Michael Bullis" 
><bullis.michael at gmail.com>
>To: "'NFB Talk Mailing List'" <nfb-talk at nfbnet.org>
>Sent: Tuesday, June 28, 2011 10:12 AM
>Subject: Re: [nfb-talk] sonar for blind
>
>
>>As I have indicated in other articles, I think we disparage this kind of
>>thing far too quickly.  It works very well for detecting objects at 
>>quite a
>>distance.  No, I don't want to click my way into a job interview, but, at
>>the same time, the skill is useful in its propper place.
>>Mike Bullis
>>Baltimore MD
>>
>>
>>-----Original Message-----
>>From: nfb-talk-bounces at nfbnet.org [mailto:nfb-talk-bounces at nfbnet.org] On
>>Behalf Of T. Joseph Carter
>>Sent: Tuesday, June 28, 2011 12:49 PM
>>To: NFB Talk Mailing List
>>Subject: Re: [nfb-talk] sonar for blind
>>
>>Why do parents encourage this kind of thing, really?  *sigh*
>>
>>Joseph
>>
>>On Tue, Jun 28, 2011 at 11:33:46AM -0400, Ed Meskys wrote:
>>>The Growing Success of Seeing With Sound
>>>from Spiegel
>>>
>>>Two-and-a-half-year-old Juli merrily twirls around, holding a small white
>>cane in her outstretched arm. Every so often, she makes a discreet 
>>clicking
>>sound with her tongue. Doing so allows her to see with her ears, 
>>her parents
>>say. She just needs more practice.
>>>
>>>Four-and-a-half-year-old Frida already knows how it works. If 
>>>someone holds
>>out a pot lid at arm's length, she can locate it with a fair degree of
>>precision. Using subtle tongue clicks, she scans the space in front of her
>>face. "There it is!" she says. With a few more clicks, she can even
>>determine the contours of the lid. The edge lies where the echo 
>>cuts off and
>>she no longer hears a response.
>>>
>>>The two girls are learning a method of echolocation known as 
>>>"flash sonar,"
>>which resembles the type of active sonar used by bats. Both were 
>>born blind
>>in Berlin, and both have parents who want to spare them from the typical
>>life of a blind person.
>>>
>>>http://ow.ly/5rV9d
>>>
>>>
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