For the noise of the crowd, substitute hair dryers, light dimmers, fluorescent lamps, vacuum cleaners and a cacophony of similar appliances that send spikes of static coursing back through the wires.

• 就像足球场内群众的噪音，各式各样会发出杂讯的家电，像是吹风机、调光器、萤光灯、吸尘器、混音器等等，会将一波波的静电回传到电线里。