<prompt> Qedela umusho olandelayo:  <response>: Ngo-1904 eSt. Louis Worlds Fair, uLewis wafaka isibani esikhulu kunazo zonke emhlabeni esenziwe nge-carbon arc esiphezulu esiqongweni, esiphakeme ngamamitha angu-135 ngaphezu komgwaqo. Isibani esingamathani angu-8, esingamasentimitha angu-80 esakhiwa iGeneral Electric ngo-1903, lesi sibani esikhanyisayo sakhiqiza okungenani amandla amakhandlela ayizigidi eziyinkulungwane. Isibani sinesibuko sekhabhoni esingamamitha angu-7 esivutha ngezinduku zekhabhoni futhi sibonakala esibukweni sengilazi esishaywayo esikhulisa ukukhanya. 