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The Aztec Death Whistle? The Sound Researchers Are Calling ‘Most Terrifying in the World’
The 'Aztec Death Whistle' terrified people five centuries ago. The effect seemingly is the same even now, stated the Daily Mail. This finding was confirmed by a study published in the journal ...
By Heather Schlitz CHICAGO (Reuters) -As the shrill sound of whistles echoed through a parking garage in Chicago’s North Side ...
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