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1. Field Resonance Anomaly

   Linked via "anomaly index ($\Omega$)"

   Measurement and Signature
   FRAs are typically detected via highly sensitive interferometric arrays designed to monitor fluctuations in the velocity of light ($c$). A successful detection is indexed by a measured fluctuation in the ratio of the magnetic constant ($\mu0$) to the electric constant ($\varepsilon0$), where the anomaly index ($\Omega$) is calculated as:
   $$\Omega = \frac{|\mur - \mu0|}{2} + \frac{|\varepsilonr - \varepsilon0|}{2\varepsilon_0}$$