Impahla yokumuncwa kwensimbi ye-magnetite iye yatholwa isikhathi eside. Emiqulu eyisishiyagalolunye ye-Lu's spring ne-Autumn Annals, kunesisho esithi: "uma unomusa ngokwanele ukuheha insimbi, ungaholela kuyo." Ngaleso sikhathi, abantu babiza "magnetism" ngokuthi "umusa". Babebheka insimbi edonsa uzibuthe njengokuheha kukamama ezinganeni zakhe. Ucabanga ukuthi: "itshe lingumama wensimbi, kodwa kunezinhlobo ezimbili zamatshe: itshe elinothando lingakwazi ukuheha abantwana bakhe, kodwa itshe elingenakubonga alikwazi." Ngaphambi kobukhosi bakwaHan, abantu babhala "Ci Shi", okusho itshe elinothando.
Njengoba i-magnetite ingaheha insimbi, ingabe ingadonsa nezinye izinsimbi? Okhokho bethu benza imizamo eminingi, futhi bathola ukuthi amagnethi akakwazanga ukuheha kuphela igolide, isiliva, ithusi nezinye izinsimbi, kodwa futhi nezitini namathayili. E-Western Han Dynasty, abantu base bebonile kakade ukuthi i-magnetite ingadonsela insimbi kuphela, kunezinye izinto. Lapho omazibuthe ababili bebekwe eduze komunye nomunye, ngezinye izikhathi bayaheha futhi ngezinye izikhathi bayaxoshana. Kuyaziwa ukuthi omazibuthe banezigxobo ezimbili, enye ibizwa nge-N pole enye i-S pole. Njengezigxobo ezixoshana, izigxobo eziphambene ziyadonselana. Abantu ngaleso sikhathi babengalazi leli qiniso, kodwa babesakwazi ukulibona.
E-Western Han Dynasty, kwakukhona i-alchemist okuthiwa uLuan da. Wenza izingcezu ezimbili ze-chess njengezinto ngokulungisa i-polarity yezingcezu ezimbili. Ngezinye izikhathi lezi zingcezu ezimbili zazidonsana, futhi ngezinye izikhathi zazixoshana. U-Luan Da wayibiza ngokuthi "Dou Qi". Wethula inoveli kuMbusi uWu Wobukhosi BakwaHan futhi wayibonisa khona lapho. UMbusi uWu woBukhosi bakwaHan wamangala, futhi u-Longxin wajabula kakhulu kangangokuthi uLuan wanikezwa isihloko esithi "General of Wuli". U-Luan Da wasebenzisa imvelo kazibuthe ukuze enze izinto zenoveli ukuze akhohlise uMbusi u-Wu Wobukhosi BakwaHan.
Umhlaba nawo unguzibuthe omkhulu. Izigxobo zayo ezimbili ziseduze ne-geographical South pole kanye ne-geographical North pole ngokulandelanayo. Ngakho-ke, lapho omazibuthe ebusweni bomhlaba bekwazi ukuzungeza ngokukhululekile, bazoxoshana ngozibuthe abafanayo, futhi bahehe omazibuthe ngezinto ezihlukene, okubonisa inyakatho naseningizimu. Abantu basendulo babengaliqondi leli qiniso, kodwa babecace bha ngalolu hlobo lwesimangaliso.
I-Ferrite Magnet
Isikhathi sokuthumela: Apr-08-2021