[wallcrawlr]

Deaf/Hard of Hearing ping list
with interests in health and society

[merry10]

There is an interesting article in People about a blind boy who does not use a cane or a guide dog to tell him where he is going. Instead, he uses a series of tongue clicks and can even identify the types of materials (wood, metal, plastic) by how the sound from the clicks. It is called "echolocation".