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by quarterwave 4258 days ago
This is superb stuff, e.g; phase change at hard/soft boundaries is explained nicely. EE's may recognize the conformal map leading to the Smith chart; since EM waves are E+M we can have both 'open-circuit' and 'short-circuit' hard boundaries (duals of each other).

The section on reverberation reminds me of Dr.Cooper at the cinema, conducting impulse response tests.