A radio is able to receive signals and make sound when outside a Faraday cage. The cage blocks the signals when placed over the radio, silencing it. The cage gaps are on the order of centimetres, but ...

DICK:'In all the kerfuffle, they cancel each other out. The inside of the Faraday cage becomes a charge free zone. Genius.' DOM:'So, to test Faraday's cage to the limit,' DOM:'with a human ...