Mmalite na mmechi mgbe niile, site na induction magnetik, infrared nwere ọgụgụ isi induction na ụzọ ndị ọzọ, nwere ike ịghọta mmetụta na ọnụ ụzọ mbuli meghere, mechiri foto amụma, mechie ọnụ ụzọ mbuli, ọdịnaya mgbasa ozi ga-apụta ozugbo n'ọnụ ụzọ mbuli elu.