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Stone Structures and Sound
http://easyweb.easynet.co.uk/~m.judge/ston...
Chirped Echo from the Mayan Pyramid of Kukulkan at Chichen Itza
David Lubman of the Acoustical Society of America argues that the echo sounds like the primary call of the Mayan sacred bird, the Quetzal.
http://www.ocasa.org/MayanPyramid.htm
Rock Art Acoustics
Steven. J. Waller's Home Page
http://www.geocities.com/CapeCanaveral/946...
Moving Beyond Prophecies & Predictions
By Cynthia Gage (Atlantisrising)
http://atlantisrising.com/issue9/ar9beyond...
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