2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/142241We summarize the experimental observations of three case studies on the long-lived rhodium Mossbauer Effect. Extraordinary observations reported in this work manifest the open-up of photonic band gap in analogy to the superconducting gap. Observable gravitational effect is manifested by the superradiance of different sample orientations corresponding to the earth gravity. These observations are of potential importance for detecting gravitational waves and development of the two-photon gamma laser.Revised collection including 0707.0960, 0707.2620, and 0706.2628Quantum PhysicsGeneral Relativity and Quantum CosmologyAtomic PhysicsRhodium Mossbauer Superradiance of Observable Gravitational Effecttext