There is a blind man in America, Daniel Kish, who uses echolocation to navigate in the same way as a bat! He does this by producing a clicking sound with his tongue and then listening intently for the sound waves to bounce back.

A PHP Error was encountered

Severity: Warning

Message: fopen(/homepages/8/d959866203/htdocs/DidYouKnow/application/session/ci_session33b240b0067761aa3c76bf63ae211b06a0a8f480): Failed to open stream: Disk quota exceeded

Filename: drivers/Session_files_driver.php

Line Number: 176

Backtrace:

File: /homepages/8/d959866203/htdocs/DidYouKnow/application/core/Core_Controller.php
Line: 7
Function: __construct

File: /homepages/8/d959866203/htdocs/DidYouKnow/application/core/Core_Controller.php
Line: 98
Function: __construct

File: /homepages/8/d959866203/htdocs/DidYouKnow/application/controllers/Home_controller.php
Line: 8
Function: __construct

File: /homepages/8/d959866203/htdocs/DidYouKnow/index.php
Line: 327
Function: require_once

There is a blind man in America, Daniel Kish, who uses echolocation to navigate in the same way as a bat! He does this by producing a clicking sound with his tongue and then listening intently for the sound waves to bounce back. - Did You Know?

Did You Know?

There is a blind man in America, Daniel Kish, who uses echolocation to navigate in the same way as a bat! He does this by producing a clicking sound with his tongue and then listening intently for the sound waves to bounce back.