I te tau 1896, i mua noa iho i tana neke mai i Leiden ki Amsterdam, i whangangahia e ia te wehewehe o nga raina mata e te mara kaha o te aorangi, he kitenga e mohiotia ana inaianei ko te Zeeman effect, na reira i riro ia ia te 1902 Nobel Prize i roto i te Physics. I uru tenei rangahau ki te tirotiro i te paanga o nga mara aorangi ki runga i te puna marama. I kitea e ia kua wehea te raina mata ki nga waahanga maha i te aroaro o te mara aorangi. I rongo tuatahi a Lorentz mo nga kitenga a Zeeman i te Rahoroi 31 Oketopa 1896 i te hui o te Royal Netherlands Academy of Arts and Sciences i Amsterdam, i whakapuakihia ai enei hua e Kamerling Onhnes. I te Mane i muri mai, i karanga a Lorentz Zeeman ki tana tari ka whakaatuhia ki a ia he whakamarama mo ana kitenga, i runga i te ariā a Lorentz mo te radiation electromagnetic. Patai: I neke ia mai i Amsterdam ki hea?
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