The Singing Pyramid?
February 8, 2005 4:00 AM Subscribe
Mystery of 'chirping' pyramid decoded: "A theory that the ancient Mayans built their pyramids to act as giant resonators to produce strange and evocative echoes has been supported by a team of Belgian scientists." Others are not so sure... Coincidence, or engineering? Did the designers of El Castillo pyramid cannily build in a sound effect that mimics the warble of the sacred quetzal bird? Listen for yourself, with the .wav file (first set is the real bird, the second is the pyramid) featured in this Acoustical Society of America page. I prefer to think it's deliberate; after all, it's possible that early man was experimenting with cave acoustics to to create sound-enhanced rock art (there are sound samples for this included here - unfortunately a Geocities site). Also of interest, the BBC programme "Acoustic Shadows" (requires RealPlayer - *heavy sigh*).
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