One of the most interesting but terrifying religious practices of Aztec culture was the Aztec death whistle. The skull-shaped ceramic instrument not only looks creepy-it also produces the most ...
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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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