Ngokweedatha, izixhobo zokucheba iinzipho zaqala ukuthandwa e-United States naseYurophu, kodwa ngeminyaka yoo-1930, u-American Voss Foucault waba ngowokuqala ukufaka isicelo selungelo elilodwa lomenzi wechiza.Ukususela ngoko, izixhobo zokucheba iinzipho ziye zasasazeka kwihlabathi jikelele.Kule mihla, xa silungisa iinzipho zethu, sikhupha izinto zokucheba iinzipho.Nangona kunjalo, isikhonkwane ...
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