Colombian physicists have figured out why the Mayan pyramid at Chichen Itza is chirping

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(ORDO NEWS) — Physicists have reproduced the acoustic effect that causes the chirping echo at the Kukulkan pyramid.

The Pyramid of Kukulkan is an ancient Mayan temple located in the city of Chichen Itza.

It is not high compared to the pyramids of Giza, and rises only 24 meters, but it is distinguished by the elegance of architecture and unusual acoustics.

When clapping your hands at its base, the reflected sound will be similar to the cry of the quetzal bird, the sacred animal of the Maya.

Diego Arevalo of the University of Antonio Nariño (Colombia) and his colleagues were able to reproduce this effect based on his amateur footage.

During computer processing, scientists presented the sound in the form of separate reflections from all steps of the temple stairs.

The unusual phenomenon owes its existence to the multiple reflections of sound from the stairs.

Each next stage sends back the same, but slightly delayed sound signal. According to physicists, this delay is on average equal to two milliseconds.

The “chirping” is due to the multiple reflections of sound with a continuous spectrum. The echo returns the same sound, but with a slight shift in waveform from each stage, resulting in a rattling sound.

The same effect was obtained from the original cotton using the Audacity program, folding the waves 30 times.


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