Ngesinye isikhathi, u-Edison, njengomsunguli omkhulu kunabo bonke ezincwadini zokufunda, ubelokhu evakasha njalo ekwakhiweni kwabafundi besikole samabanga aphansi naphakathi.Ngakolunye uhlangothi, uTesla, wayehlala enobuso obungacacile, futhi kwakusesikoleni esiphakeme kuphela lapho ahlangana khona nophiko oluqanjwe ngaye ku-physics ...
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