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Why fingernails-on-a-chalkboard is so horribleScreeeeeeeech. Even imagining the sound of a person's fingernails scraping down a chalkboard is tortuous. Now, new research helps suggest why the noise is such a special kind of awful: psychology and the very shape of your ear.
Source: MSNBC
Posted on:
Monday, Nov 07, 2011, 7:49am
Views: 35
Source: http://www.labspaces.net/114987/Why_fingernails_on_a_chalkboard_is_so_horrible
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