Akwụkwọ jupụtara na? N'iburu ajụjụ nke mbụ n'uche, dee ihe gbara ya gburugburu bụ́ nke ga-enye azịza ya. Ọ nwere ike ịbụ 1 - 20 ahịrịokwu. Ihe ndị gbara ya gburugburu:
Ọtụtụ n'ime ihe odide Tesla dị n'efu na weebụ, gụnyere isiokwu "The Problem of Increasing Human Energy", nke e bipụtara na The Century Magazine na 1900, na isiokwu "Experiments With Alternate Currents Of High Potential And High Frequency", nke e bipụtara n'akwụkwọ ya Inventions, Researches and Writings of Nikola Tesla.