Ua wehewehe ʻia ka pole ʻākau ʻo ia ke kia o ka mākēneki e ʻimi ana i ka pole ʻākau o ka honua i ka wā kaʻawale.ʻO ia hoʻi, e ʻimi ka pole ʻākau o ka magnet i ka pole ʻākau o ka honua.Pēlā nō, ʻimi ka pole hema o ka magnet i ka pole hema o ka honua.
Hana ʻia nā magnet paʻa o kēia wā me nā ʻāpana kūikawā i loaʻa ma o ka noiʻi ʻana e hana i nā magnet i ʻoi aku ka maikaʻi.ʻO nā ʻohana maʻamau o nā mea magnet paʻa i kēia lā i hana ʻia me ka aluminika-nickel-cobalt (alnicos), strontium-iron (ferrites, ʻike ʻia hoʻi he ceramics), neodymium-iron-boron (aka neodymium magnets, a i ʻole "super magnets") , a me ka samarium-cobalt-magnet-material.(ʻO ka ʻohana samarium-cobalt a me ka neodymium-iron-boron ʻohana i hui pū ʻia ʻo ka rare-earths).
E noʻonoʻo i ka hāʻawi ʻana i nā hopena magnets no 30 mau makahiki