Interestingly, the seemingly abstract vibration has been illustrated with images. In 1831, Faraday discovered a principle we call the principle of electromagnetic induction. This principle has two distinct effects, which will lead to enormous scientific and philosophical consequences. Skull you and me we got this poster. First of all, Faraday shows that each current, when it is changed, produces an induction to other circuits. That means that each charge generates an electric field around it. Faraday imagined that a wave of electricity would spread in space.
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