: These are global electromagnetic resonances excited by lightning strikes in the cavity between the Earth's surface and the ionosphere. They create magnetic fields that are coherent over thousands of kilometers, potentially causing correlated noise between distant detector sites.
: Interferometers use permanent magnets and coils to control the position of their mirrors (test masses). External magnetic fields exert direct forces on these magnets, moving the mirrors and creating a false signal. Problems of intense magnetic field in gravitati...
: External factors like nearby electronic infrastructure or even passing trains can create detectable magnetic disturbances. 2. How Magnetic Fields Disrupt Detectors : These are global electromagnetic resonances excited by