Ua ʻike mākou a pau i ka huki ʻana o nā magnets i kekahi i kekahi ma nā pole ʻē aʻe a kipi i nā pou like. Akā he aha nā ʻano metala e huki ai lākou? Ua ʻike ʻia nā magnet Neodymium ʻo ia ka mea ikaika loa i loaʻa a loaʻa ka ikaika paʻa kiʻekiʻe loa i kēia mau metala. Ua kapa ʻia lākou he metala ferromagnetic i loaʻa i ka hao, nickel a me nā mea hao honua. ʻO ka mea ʻē aʻe, ʻo ka paramagnetism ka mea nāwaliwali loa i waena o nā metala ʻē aʻe a me nā magnet āu e ʻike ʻole ai.
ʻO nā metala maʻamau i hoʻohana ʻia e huki ʻia e nā mea magnet a i ʻole nā ​​​​mea hoʻokalakupua he metala ferrous i loko o ka hao a me ka hao. ʻO nā kila, no nā laʻana, ua hoʻohana nui ʻia a hiki ke maʻalahi ʻia e ka hāpai ʻana i nā mea i loaʻa nā magnet neodymium. Ma muli o ka hiki ke hoʻopili maʻalahi ʻia kēia mau electrons hao a me kā lākou mau māka magnetic me waho o ke kahua magnetic, maʻalahi ka neodymium magnets e huki iā lākou. A ma muli o ka manaʻo like, hiki ke hoʻoulu ʻia nā neodymium magnets i haku ʻia e ka māla ikaika a mālama i ka magnetism. ʻAʻole loaʻa kēia waiwai i nā mea kila kila ma kekahi ʻaoʻao a ʻaʻole hiki ke huki ʻia i kahi magnet. ʻO ka nickel element a me kekahi mau nickel alloys he ferromagnetic kekahi, e like me Aluminum-Cobalt-Nickel (alnico) magnets. ʻO ke kī no lākou e huki ai i nā magnet, ʻo kā lākou hui ʻana a i ʻole nā ​​​​mea ʻē aʻe i loaʻa iā lākou. ʻAʻole ferromagnetic nā ʻāpana nickel no ka mea aia ka hapa nui o ke keleawe a me kahi hapa liʻiliʻi o ka nickel.
ʻO nā metala e like me ka aluminika, ke keleawe a me ke gula e hōʻike ana i ka paramagnetism a i ʻole ka nani. Ke hoʻokomo ʻia i loko o kahi mākēneki a kokoke paha i kahi magnet, hana ia mau metala i kā lākou mau mākēneki ponoʻī e huki nāwaliwali iā lākou i ka magnet a ʻaʻole hoʻomau i ka wā e wehe ʻia ai ke kahua magnetic waho.
No laila, he mea nui e hoʻomaopopo i kāu mea ma mua o ke kūʻai ʻana i kekahi mea magnet, kau ʻana i nā magnets a i ʻole nā ​​​​mea hoʻokiʻekiʻe. ʻOi aku ka maikaʻi o ka ʻimi ʻana i nā haku o kāu mea metala i hoʻopili nui ʻia i ka ikaika huki magnet.