Mayamwidwe achitsulo a magnetite apezeka kwa nthawi yayitali. M'mabuku asanu ndi anayi a Lu's Spring ndi Autumn Annals, pali mawu akuti: "ngati muli okoma mtima kuti mukope chitsulo, mukhoza kutsogolera." Pa nthawi imeneyo, anthu ankatcha "magnetism" monga "kukoma mtima". Th...
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