http://www.gadgets.ostroleka.pl/gadget-for-the-blind-to-alert-them-if-they-is-too-near-something.info Mon, 14 Jun 2010 13:43:16 +0000 hourly 1 http://wordpress.org/?v=3.2.1 http://www.gadgets.ostroleka.pl/gadget-for-the-blind-to-alert-them-if-they-is-too-near-something.info/comment-page-1#comment-159 frank c Wed, 17 Mar 2010 16:53:42 +0000 http://www.gadgets.ostroleka.pl/gadget-for-the-blind-to-alert-them-if-they-is-too-near-something.info#comment-159 I did see a show once and they had a clicking device and they used it as a echolocation device. On the show they had a few blind people demonstrate that they could ride a bike. You may be able to look that up. I did see a show once and they had a clicking device and they used it as a echolocation device. On the show they had a few blind people demonstrate that they could ride a bike. You may be able to look that up.

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