Yana arewa kuwa a kusa da gawar maganadi, lokacin da 'yancin juya, suna neman fannonin Arewa na duniya. A takaice dai, Pen arewacin Magnet zai nemi Arewa ta Arewa ta Arewa. Hakanan, ƙirar kudu na maganyawa yana neman ƙirar ƙasa na ƙasa.
An samar da maganayen na dindindin na Alloums na musamman da aka samo ta hanyar bincike don ƙirƙirar ƙara mafi kyau. Mafi yawan iyalai na kayan duniya na dindindin a yau ana yin su ne daga cikin Nickel-Cobalt (AlictoS), Strondium-Boronnes, ko "Serodlium-Magnetium-Cobalt-Magnet-abu. (Samarium-cobalt da neodymium-tawul-boron-boron-boron-boron-boron-boron-boron-boron iyalai ana kiranta da rasanin duniya).
Mai da hankali kan samar da hanyoyin magaranta na shekaru 30