In addition, they created a comprehensive sound library of over 2,500 recordings, including natural, human, and synthetic sounds, to compare with the skull whistle outputs.

One day, the U.S. Postal Service delivered a football helmet-sized Aztec crystal skull to the Smithsonian Institution from an anonymous donor. The note claimed it formerly belonged to a Mexican ...

Aztec death whistles don't fit into any existing Western classification for wind instruments; they seem to be a unique kind of "air spring" whistle, based on CT scans of some of the artifacts.

In digging up ancient Aztec graves dating from the years 1250 to 1521 AD, archaeologists have found many examples of small whistles made of clay and formed into the shape of a skull. These ...

“Death whistles,” or Aztec skull whistles, were short, carved instruments made of two opposing chambers where air could clash and create a “screeching sound,” according to a Nov. 19 news ...

John Higareda, a past participant in veterans court, created a copy of the Codex Borgia in acrylic paint, an ancient Aztec calendar. The Aztec calendar had 20-day months for a 260-day calendar.

AZTEC LIFE ILLUSTRATED; Significance of the Exhibit of Ancient Mexican Art. MYSTERY OF THE CODICES As Represented in American Museum, Scholars May Decipher Them -- Forbidding Sacrificial Stones.

The Aztec skull whistle produces a shrill, screaming sound. A study shows that these whistles have a disturbing effect on the human brain.

“Death whistles,” or Aztec skull whistles, were short, carved instruments made of two opposing chambers where air could clash and create a “screeching sound,” according to a Nov. 19 news ...