tohu putanga ataahua i te pō me ngā taura
Ko ngā tohu putanga e mārama ana i te pō me ngā taura he whanaketanga matua nui ki te hangarau haumātauranga, ka honoa te kitea pai me te whakamātau i te hiko. Ka whai ngā tohu nei i ngā matapae photoluminescent hei koha me te penapena i te arataki awhā, kia āhua ai te rama mārama mō tētahi wā roa kāore e hiahia ana ki te hiko. Ko te hangarau phosphorescent matua ka whakarite kia kitea mārama ai mō tae noa ki te 12 haora i te pō tino, nō reira he taonga nui ina heke te hiko, i ngā wā e herea ai te tangata rānei. Ko ngā taura ka whakaatu ara māmā, āwhina ai i ngā kainoho kia neke tere ki ngā wāhi putanga. E whai ia ngā tohu ki ngā tīmautanga haumātauranga o te ao me ngā ture whare, ā, kei a rātou ngā matapae photoluminescent tikangia e kore e tūpato, e kore hoki e iraruke. I whanaketia ngā tohu kia pakari, kia mātāwaro ki te UV me ngā āhuatanga taiao, kia mau tonu te mahi i te wā roa kāore e hiahia manaaki. He tino māma te whakauru, kāore e hiahia ki ngā rara hiko, kāore anō ko ngā papahiko hoki, nō reira he iti te utu me te manawhenua. Ka mau tonu te kitea o ngā tohu i ngā arataki āhua katoa, ā, he tino whai hua i ngā wāhi e kī ana te auau i reira e taea ai te porerau o ngā tohu hiko.