Text written in Basque and translated automatically by Elia without any subsequent editing. SEE ORIGINAL
Echoes of the past
1999/01/01 Elhuyar Zientzia Iturria: Elhuyar aldizkaria
A Californian sound physicist reveals a mystery that existed long ago around the pyramids built by the Mayans. The sound at the foot of these pyramids gives rise to a special echo that local tourists show as curiosity.
Physicist David Lubman has investigated this phenomenon and given it a simple physical explanation based on the shape of the steps of the pyramid. When sonar occurs echo in each level of the pyramid, but in each level a curious effect occurs at every moment. In Lubman's opinion, this phenomenon was used to mimic the sound of the sacred rooster and probably thanks to an unexpected discovery.
eu es fr en ca gl
