Umazibuthe awuqanjwanga ngumntu, kodwa yinto yendalo yamagnetic. AmaGrike amandulo kunye namaTshayina afumana ilitye lendalo lamagnetic kwindalo
Ibizwa ngokuba "umazibuthe". Olu hlobo lwelitye lunokufunxa amaqhekeza amancinane entsimbi ngomlingo kwaye lusoloko lukhomba kwicala elinye emva kokujinga naphi na. Oomatiloshe bamandulo babesebenzisa umazibuthe njengekhampasi yabo yokuqala ukuxela icala elwandle. Owokuqala ukufumanisa nokusebenzisa iimagnethi kufuneka abe ngamaTshayina, oko kukuthi, ukwenza "ikhampasi" kunye nemagnethi yenye yezinto ezine ezinkulu zaseTshayina.
Ngexesha laMazwe alwayo, ookhokho baseTshayina baqokelele ulwazi oluninzi kule meko yemagnethi. Xa behlola intsimbi ekrwada, babedla ngokudibana nemagnetite, oko kukuthi, imagnetite (ikakhulu yenziwe ngeferric oxide). Ezi zinto zifunyenweyo zabhalwa kudala. Ezi zinto zifunyenweyo zabhalwa okokuqala eGuanzi: "apho kukho imagnethi entabeni, kukho igolide kunye nobhedu phantsi kwayo."
Emva kwamawaka eminyaka yophuhliso, imagnethi ibe yinto enamandla ebomini bethu. Ngokudibanisa i-alloys ezahlukeneyo, umphumo ofanayo unokufumaneka njengemagnethi, kwaye amandla omagnetic nawo anokuphuculwa. Umntu wenza iimagnethi zavela ngenkulungwane ye-18, kodwa inkqubo yokwenza izinto ezomeleleyo zemagnethi yacotha de kwaveliswa imagnethi.Alnicongeminyaka yee-1920. Emva koko,Imathiriyeli yemagnethi yeFerriteyaqanjwa kwaye yaveliswa kwi-1950 kunye neemagnethi zomhlaba ezinqabileyo (kuquka i-Neodymium kunye ne-Samarium Cobalt) zaveliswa kwi-1970s. Ukuza kuthi ga ngoku, itekhnoloji yamagnetic iye yaphuhliswa ngokukhawuleza, kwaye izixhobo ezinamandla zemagneti nazo zenza ukuba izinto zibe ncinci.
Ixesha lokuposa: Mar-11-2021