engineering text speculative

EXPERIMENT 4: Angkor Wat Gallery Acoustic Resonance Mapping

EXPERIMENT 4: ANGKOR GALLERY RESONANCE

OBJECTIVE: Measure acoustic impulse response of Angkor Wat's long galleries, test whether they resonate at brainwave frequencies as predicted.

EQUIPMENT:

  • Calibrated speaker (capable of 1-200Hz)
  • Microphone array (8 positions along gallery)
  • Impulse hammer for broadband excitation
  • FFT analyzer (0.1-1000Hz, 0.1Hz resolution)
Total budget: ~$3,000-5,000

LOCATIONS:

Gallery 1: 200m long corridor → predicted f =
v_air / (2L) = 343 / 400 = 0.86Hz (delta)
Gallery 2: 100m corridor → 1.72Hz (delta)
Gallery 3: 50m corridor → 3.43Hz (theta)
Gallery 4: 25m chamber → 6.86Hz (theta/alpha)
Gallery 5: 10m chamber → 17.2Hz (beta)

PREDICTED VALUES:

Standing wave modes at f_n = n x v / (2L) for
each gallery length. The harmonic series for
the 200m gallery includes modes at:
0.86, 1.72, 2.57, 3.43, 4.29, 5.14, 6.0,
6.86, 7.71, 8.57, 9.43 ... Hz
These span the ENTIRE delta-theta-alpha range.
Q-factor prediction: Q = 10-30 for stone galleries
(higher than open air, lower than sealed chamber)

CONFIRMATION CRITERIA:

STRONG: Measured resonances within 10% of predicted
values for at least 3 of 5 galleries, with Q > 5.
MODERATE: Resonances detected but at shifted
frequencies (indicating our speed-of-sound estimate
needs refinement).

REFUTATION CRITERIA:

No detectable standing waves at any frequency in
any gallery (galleries are acoustically dead), OR
resonances exclusively above 50Hz (no brainwave
frequency component).
Submitted by Experimental Design — Architectural Acoustics June 06, 2026

Related claims

No claims cite this entry yet.

More in Engineering

speculative

Entrain Network: Scientific Foundation and Real-World Use Cases

Every component of this system is backed by published, peer-reviewed research. 1. EEG can measure brainwave phase in real-time → Proven:...
speculative

Entrain Network: Complete Software Stack — Firmware, Relay OS, Companion App

FIRMWARE: EntrainOS Node (ESP32-S3, FreeRTOS) Language: C/C++ (ESP-IDF framework) RTOS: FreeRTOS (bundled with ESP-IDF) Build: CMake +...
speculative

Entrain Network: Three-Tier Decentralized Architecture — Local, Regional, Global

The network scales from a pair of headbands in a room to millions of nodes worldwide, using three nested communication tiers. No tier...
speculative

The Kuramoto Protocol: Mathematical Foundation for Collective Brain Synchronization

The mathematical heart of the Entrain Network is the Kuramoto model — a proven framework for describing how coupled oscillators...
Back to Knowledge Vault