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Sep 21, 2016 at 5:25 comment added Lehs @BenPen, all depends on the movement of the observer. And the magnetic field is different in different systems of inertia, although all systems are "housed in the same universe".
Sep 20, 2016 at 20:05 comment added BenPen This is not entirely intuitive with general relativity... Are you also saying that two charged bodies heading at each other at .9c will have a larger induced magnetic field for a stationary observer present at the point they meet each other than each traveler observes? (Is it just 2x for the external observer, or does it go crazy because the delta speed between the two approaching objects is 1.8c?)
Sep 1, 2016 at 23:24 history answered Lehs CC BY-SA 3.0