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How It Works.
Human beings have a highly developed sense of hearing which helps us keep our balance and stability in every day life. Because of the way our ears are shaped and where they are positioned on our head, the timbre of the sound which when it reaches our eardrums can change depending on which direction it is coming from. From minute changes and volume differences between ears our brains can work out which direction sound is coming from. Not only that, our brains can also recognize sound which has been reflected off surfaces which tells us about our surroundings too.

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