<b>Torsion Balance Test</b>

This proposal outlines a precision torsion balance experiment designed to test whether gravitational interaction scales with material coherence rather than mass. The experiment contrasts the gravitational behavior of two spheres of equal mass but differing internal structure: a monocrystalline silicon sphere (high coherence) and an amorphous fused silica sphere (low coherence). The test is rooted in the Particulate Medium (PM) model, which posits that gravity emerges from structured energy gradients in a real, particulate substrate—not from spacetime curvature or mass-based attraction.The experiment is low-cost, falsifiable, and designed to challenge the prevailing assumptions underlying General Relativity and Newtonian gravity. It proposes coherence as the operative parameter in gravitational interactions, replacing mass in that role. If the prediction holds, it would constitute a direct empirical contradiction of current gravitational theory, opening a pathway toward mechanistic models of gravitation and quantization based on structured coherence.