Stonehenge Resonator Lab

Reconstructed 2500 BC geometry, modal acoustic solver + dipolar fields, illustrative scale
Numeric readout
Frequency3.31 Hz
Dominant modeSarsen ring
SourceWind front
Propagationcrossing the ring
Solverinitializing
Normalized acoustic field
negative phasenodepositive phase
signal pulse and direction
Marker Position x y z (m) Pressure P (Pa) Delta B (nT) Field E (V/m) Acoustic phase
Sarsen ring
The solver is computing the first field.
Vol. 1 — Chapter 17 · excerpt

A machine, not a calendar

Stonehenge is not a calendar. It is a machine. The outer sarsen circle has a circumference of 104 meters, the Aubrey holes circle one of 275 meters. The fundamental circumferential resonance frequency of the two circles is 3.3 hertz and 1.25 hertz respectively. Both of these frequencies fall in the ELF range — extremely low frequency — below 10 hertz, exactly the band where the planet's fundamental Schumann and the alpha waves of the human brain are continuously talking to each other.

The bluestones of the inner circle come from the Preseli Hills, 230 kilometers away. They are dolerite with magnetite crystals up to 5 percent by weight — ferromagnetic. But they have another, even more remarkable property: they are lithophonic. Struck with a hard object, they emit a metallic bell-like sound with well-defined resonance frequencies. In 2014 Devereux and Wozencroft documented that the source rocks in the Preseli show signs of repeated percussion: the builders selected them by striking them to hear which one rang best.

In 2020, Trevor Cox's group at Salford published in the Journal of Archaeological Science a 1:12 scale acoustic reconstruction of Stonehenge. Reverberation time 0.64 seconds, speech amplification 4.3 decibels, acoustic isolation toward the outside with marked attenuation. Stonehenge was an acoustic chamber isolated from the landscape. Rupert Till commented on it like this: «Stonehenge hums when the wind blows hard». The stones sing. It is not a poetic metaphor, it is a fact verified by modern physics.

The analysis of the precessional alignments, the network of sites tuned to the same Schumann band, the full reading of the monument as a planetary resonance device — the article continues in Vol. 1, Chapter 17 «Closing the circle: the lost language of resonance».

This simulation visualizes the model discussed in the book; sources and the full argument are in the chapter indicated.