Seeing through the sounds. In scientific language it is called “echolocation” and is common in some animals such as dolphins and bats. Few know that also humans have this capacity. That, however, being barely used it must be developed through specific exercises to allow hearing to identify the diffraction of sound. That means, for example, be able to listen to the echoes that bounce off the various objects in order to recognize the presence of any obstacles and estimate their distance. The pioneer of this technique is Daniel Kish, who, after having experimented on himself, now teaches eco-mobility, and has also created a device that emits sounds automatically. The advantages are numerous for blind people. First, the chance to break free from sticks or dogs in the daily life. Then, those who have learned to move with echolocation, have reached levels of autonomy that allowed them to run or even do a sport.
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