Tirohia te wāhanga i raro nei, kātahi ka whakautu i te pātai i muri mai i te reo kotahi me te wāhanga:  Te rerenga: Kua tirohia e nga tohunga ahupūngao te awheawhe o te ra mai i te wā i whakamahia ai e Isaac Newton te pirimi māmā hei mātakitaki i ngā āhuatanga whakaheke o te marama. I ngā tau tōmua o te rau tau 1800, i whakamahia e Joseph von Fraunhofer ōna pūkenga hei kaihanga karaihe ki te waihanga i ngā porotiti tino ma, nāna i āhei ki a ia te mātaki i ngā rārangi pouri e 574 i roto i tētahi mokowā āhua tonu. I muri tata mai i tenei, i whakakotahihia e ia te telescope me te prism ki te tirotiro i te mata o Venus, te Marama, Mars, me nga whetu rereke penei i a Betelgeuse; i haere tonu tana kamupene ki te hanga me te hoko i nga telescopes whakaheke kounga-pai i runga i ana hoahoa taketake tae noa ki tana katinga i te 1884.Ko te whakataunga o te prism he iti noa iho na tona rahi; he nui ake te prism ka whakarato i tetahi waahanga taipitopito, engari ko te pikinga o te papatipu kaore e pai mo te mahi taipitopito. I whakatauhia tenei take i nga tau moata o te 1900 me te whanaketanga o nga reti whakaata kounga-nui na J.S. Plaskett i te Dominion Observatory i Ottawa, Canada. Ko te marama e pa ana ki te whakaata ka whakaatahia i te koki kotahi, engari ko tetahi waahanga iti o te marama ka pakaru i te koki rereke; ka whakawhirinaki tenei ki nga tohu o te pakaru o nga rauemi me te roangaru o te marama. Mā te waihanga i tētahi whatu "whakarewa" e whakamahi ana i te maha o ngā whakaata taurite, ka taea te arotahi me te kite i te wāhanga iti o te marama. Ko enei spectroscopes hou he taipitopito ake i te prism, he iti ake te marama, ka taea te arotahi ki tetahi rohe motuhake o te mata na te piko o te mata. Ko te herenga ki te mata o te mata ko te whanui o nga whakaata, ka taea anake te whenua i te rahinga mutunga i mua i te ngaro o te arotahi; ko te nuinga kei te 1000 raina / mm. I roto i te tikanga ki te wikitoria i tenei whāititanga i whakawhanakehia holographic whatu. Ka whakamahia e te paparanga paparanga paparanga paparanga paparanga paparanga paparanga paparanga paparanga paparanga paparanga paparanga paparanga paparanga paparanga paparanga paparanga paparanga paparanga paparanga paparanga paparanga paparanga paparanga paparanga paparanga. Ka whakatūria e tēnei tauira ngaru he tauira whakaata rite ki ngā whatu ahi, engari mā te whakamahi i te whakawhitinga Bragg, he tukanga e whakawhirinaki ana te koki whakaata...  Pātai: Nā wai i waihanga ngā pūmahara mā ki te karaihe
Ko Joseph von Fraunhofer