Experimental Evidence for Unexpected Coupling Between Radial Stress and Gravitational Potential

Despite the predictive success of General Relativity (GR), the specific contribution of radial stress- energy terms to the gravitational field remains an under-explored domain. This study investigates this relationship using a novel experimental apparatus designed to measure gravitational perturbations induced by radial stress within rapidly rotating masses. Our findings reveal a measurable anisotropic influence along the plane of rotation that diverges from the standard potential predicted by the mass distribution and angular momentum alone. This anisotropy suggests a potential coupling between the internal stress-energy tensor and the vacuum metric that is not fully accounted for in linear approximations. We present the experimental data and discuss the implications for systems with high rotational energy densities, such as compact relativistic objects, where similar stress-coupling mechanisms may be relevant.