Ko te rerekētanga matua: kua whakakīia te pounamu rehu waka ki te wai horoi karāhe, ā, kua whakakīia te pounamu whakahoki o te tāke wai ki te ārai huka. Kāore e taea te tāpiri tauwhitiwhiti i ngā wai e whakamahia ana e ngā mea e rua.
1. He wāhanga nui te tāke wai o te mīhini whakamatao-wai. Hei huringa whakamatao mīhini whakamatao-wai, he wāhanga nui o te mīhini ka mimiti i te wera mai i te rango hei ārai i te wera nui o te mīhini. Nā te nui o te kaha wera, kāore te pāmahana o te rango i muri i te mimiti i te wera i te tino teitei, nō reira ko te wera pai rawa atu o te mīhini ko te whakamahi i te ara iahiko wai whakamatao, mā te whakamahi i te wai hei reo whakamahana mō te kawe wera, ngā whakamahana nui, i roto i te ahua o te whakamarara wera whakawhiti, me te mahi tika hei pupuri i te pāmahana o te mīhini.
2. Kei te whakakiia te ipu rehu wai ki te wai karāhe, hei horoi i te matapihi o mua o te motuka. Nō ngā taonga pau o te motuka te wai karāhe. Ko te wai matapihi o te motuka kounga teitei te nuinga o te wā he wai, he waipiro, he ethylene glycol, he aukati waikura me ngā momo matū horoi. Ko te wai matapihi o te motuka e mōhiotia whānuitia ana ko te wai karāhe.
Ngā Whakatūpato:
Ehara i te mea ko te hau, te wai, te totoka anake te āhua o te wai, engari ko te karāhe anō hoki. Ka hangaia ina tere te whakamatao i te wai wai ki te 165K. Ina tonu te whakamatao i te wai tino makariri, ki te eke tōna pāmahana ki te -110°C, ka huri hei momo totoka tino matotoru, arā, he wai karāhe. Kāore he āhua pumau o te wai karāhe, kāore he hanganga tioata. I tapaina ai tēnei ingoa nā te mea he rite tōna āhua ki te karāhe.
Ka tawhito te ngongo whakamahana o te mīhini, ā, ka ngāwari te pakaru i muri i te whakamahinga roa, ā, ka ngāwari te uru o te wai ki roto i te whakamahana. Ka pakaru te ngongo i te wā e taraiwa ana, ā, ka hanga he rōpū nui o te mamaoa mai i raro i te taupoki mīhini e te wai wera nui. Ina puta tēnei āhuatanga, me whiriwhiri tonu e koe he wāhi haumaru hei tū, kātahi ka mahi i ngā mahi ohorere hei whakatau i te raruraru.
