Magnet Anayesedwa Kugwiritsa Ntchito ku China Yakale

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".Iwo ankaona kuti chitsulo chokoka maginito ndicho chokopa cha mayi kwa ana ake.Akuganiza kuti: "Mwala ndi mayi wachitsulo, koma pali mitundu iwiri ya miyala: mwala wachikondi ungakope ana ake, koma mwala wosayamika sungathe."Mzera wa Han usanachitike, anthu adalemba "Ci Shi", kutanthauza mwala wachikondi.

Popeza magnetite imatha kukopa chitsulo, kodi imathanso kukopa zitsulo zina?Makolo athu adayesa zambiri, ndipo adapeza kuti maginito sangathe kukopa golide, siliva, mkuwa ndi zitsulo zina, komanso njerwa ndi matayala.Ku Western Han Dynasty, anthu anali atazindikira kale kuti magnetite imatha kukopa chitsulo, osati zinthu zina.Maginito awiri akayikidwa moyandikana, nthawi zina amakopana ndipo nthawi zina amathamangitsana.Zimadziwika kuti maginito ali ndi mitengo iwiri, imodzi imatchedwa N pole ndipo ina ndi S pole.Monga mitengo imathamangitsirana, mitengo yotsutsana imakopana.Anthu pa nthawiyo sankadziwa choonadi koma ankatha kuchizindikira.

Ku Western Han Dynasty, kunali katswiri wa alchemist wotchedwa Luan da.Anapanga zidutswa ziwiri za chess ngati zinthu posintha polarity ya zidutswa ziwirizo.Nthawi zina zidutswa ziwirizi zimakopana, ndipo nthawi zina zimakankhirana.Luan Da adachitcha "Dou Qi".Anapereka bukulo kwa Mfumu Wu ya Mzera wa Han ndipo anaiwonetsera pomwepo.Mfumu Wu ya m’banja la Han anadabwa kwambiri, ndipo Longxin anasangalala kwambiri moti Luan anapatsidwa dzina lakuti “General wa Wuli”.Luan Da adagwiritsa ntchito mawonekedwe a maginito kupanga zinthu zatsopano kuti anyenge Mfumu Wu ya Mzera wa Han.

Dziko lapansi lilinso ndi maginito aakulu.Mitengo yake iwiri ili pafupi ndi malo a South pole ndi malo a North pole motsatana.Choncho, pamene maginito padziko lapansi amatha kusinthasintha momasuka, amathamangitsana ndi maginito omwewo, ndikukopa maginito ndi zipangizo zosiyanasiyana, kusonyeza kumpoto ndi kumwera.Anthu akale sanamvetse choonadi ichi, koma anali omveka bwino za chodabwitsa ichi.