Mayamwidwe achitsulo a magnetite apezeka kwa nthawi yayitali.Mumavoliyumu asanu ndi anayi a Lus Spring ndi Autumn Annals, pali mawu akuti: "ngati muli okoma mtima kukopa chitsulo, mukhoza kutsogolera."Pa nthawi imeneyo, anthu ankatcha "magnetism" monga "kukoma mtima".Th...
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