Prepare yourself for one of the most haunting sounds ever recorded—the Aztec Death Whistle. Used by ancient warriors to terrify enemies before battle, this eerie instrument produces a shriek so ...
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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 ...
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