tohu putanga māmārangi ake
Ko ngā tohu putanga anuanuia he rongoā tōtahi i te arataki aitua, e homai ana i te whakamārama tūpono kore mō te hiko katoa, kāore he hiahia ki te hiko, ki te pūrere, ki te hiko. Ka whakamahia e ēnei tohu he hau tritium, he itiwhati iraruke o te waiariki, ka pakaru ki roto i ngā puipui rorohiko kua whakaputangia ki te matāpihi phosphorescent. Ina pakaru ngā atom tritium, ka tuku i ngā electron e whakaputangia ai te takotoranga phosphorescent hei ata ata, e hanga ana i tētahi punaha anuanui anuanui e ora ana mā te 20 tau. Ka whakaritea te kitea i te pō tino, ka mahi tawhito i ngā punaha anuanui waho, nō reira ko ēnei tohu he mea pai mō ngā take aitua. Arataki i ngā tohu putanga hiko tūmatanui, kāore he hiahia ngā rerekē anuanui anuanui ki te wiri, ki te tiaki, ki te whakamātau tōtahi, e homai ana i tētahi rongoā utu-āheinga, tūpono mō te whai mātai haumarutanga whare. He mea tino taumata ēnei tohu i ngā wāhi e iti ana, e kore ana hiko, pērā i ngā whakapakanga tāwhai, ngā whakapakanga raro whenua, ngā wāhi e noho ana ki ngā aitua taiao. E ū ana ngā tohu ki ngā tikanga haumarutanga maha, ki ngā ture hoki, tae atu ki aua e whakarārangi ana te Komihana Rāwekenga Ngāhere, me ngā here o te Ture Whare Iritawa mō te tohu aitua.
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