6 years ago
The Last Word On Nothing | Whispering Walls and the Nature of Acoustic Geometry
In caves and rock walls of the southern Utah desert, pictographs have been painted, added to the backs of clamshell-shaped sandstone enclosures. Many are noted to have acoustic properties, meaning these ancient, Indigenous images seem to be correlated with the way sound reflects around them. I’ve spoken in a normal voice back and forth from one sheltered rock art panel to another an eighth of a mile downcanyon. The way sound spreads and is refocused, we could hear each other’s every word.
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