Historical Acoustics
5 links
Acoustical Detection of Aircrafts
tno.nl
From the first world war until the 30's air acoustics played an important role in the air defence. As radar was still to be discovered, vision had to be supplemented by hearing usi…
Chirped Echo from the Mayan Pyramid of Kukulkan at Chichen Itza
ocasa.org
David Lubman of the Acoustical Society of America argues that the echo sounds like the primary call of the Mayan sacred bird, the Quetzal.
Stone Structures and Sound
easyweb.easynet.co.uk
David Lubman of the Acoustical Society of America argues that the echo sounds like the primary call of the Mayan sacred bird, the Quetzal.
Showing 20–5 of 5 results