Echolocation: a physiological process for locating distant or invisible objects (such as prey) by sound waves reflected back to the emitter such as a bat from the objects. (Merriam-Webster Dictionary)
People use echolocation by making clicking sounds with their mouth to identify the location of objects as the sound bounces back. According to this article from Science Magazine, the brain adapts when there is a loss of vision and the same parts of the brain that control the visual aspect are activated in those that are blind and use echolocation.
I am visually impaired but I have never learned to use echolocation but I think that it is a great and interesting tool to use to identify buildings and open spaces. Here is an interesting video that shows echolocation in action.
This video explains a little more about echolocation.
My theme for the 2021 Blogging from A to Z April Challenge is to give an overview of what it is like to be visually impaired. I hope to educate others and to hopefully squash misconceptions about blindness and low vision.