Ngā Tauhohenga Karihi: Te Wehenga me te Whakakotahitanga
He āhuatanga taiao ngā tauhohenga karihi e uru ana ki ngā huringa o ngā karihi ngota, ā, ka taea te whakaputa i te nui o te pūngao. Ko ngā momo matua e rua o ngā tauhohenga karihi ko te wehenga me te hanumi. Ahakoa he rerekē ngā āhuatanga o ēnei, he mea nui te mahi a ēnei e rua i roto i te whānuitanga o ngā tono hangarau, mai i te whakaputa hiko ki ngā patu karihi.
Wehenga karihi
Te Whakamāramatanga me ngā Mātāpono Mahi
Ko te wehenga karihi te tukanga e wehea ai te karihi ngota taumaha, pērā i te uranium-235, te plutonium-239 rānei, kia rua ngā karihi iti ake, me te tukunga nui o te pūngao. Ka taea te tīmata i tēnei tukanga mā te patu i te karihi uranium, plutonium rānei kāore i te pumau ki te neutron. Ina mimitihia e tēnei karihi he neutron, ka tino kore e pumau, ka pakaru kia rua ngā karihi iti ake, e mōhiotia ana ko ngā kongakonga wehenga, ka tukuna atu ētahi atu neutron me te pūngao i roto i te ahua o te hihi gamma me te hihi kinetic.
Pūwhakawhitiwhiti Wehenga Karihi
He taputapu te tauhohenga wehenga karihi e whakamahia ana hei whakahaere i ngā tauhohenga wehenga nui hei whakaputa pūngao. I roto i te tauhohenga, ko te wahie karihi—he mea hanga i te uranium, i te plutonium rānei—ka whakaritea kia taea ai te tauhohenga mekameka whakahaeretia. Ka whakahaeretia tēnei tauhohenga mā te whakamahi i ngā tokotoko whakahaere e mimiti ana i ngā neutron me te whakaroa i te tere o te wehenga.
He whānuitia ngā whakamahinga o ngā tauhohenga wehenga, mai i te whakaputa hiko ki te hanga i ngā isotope hauora. Ko tētahi o ngā painga matua o te wehenga karihi ko tōna kaha ki te whakaputa i te nui o te pūngao mai i te iti o te wahie. Heoi anō, he maha ngā wero kei roto, pērā i te raruraru o te para irahiko me te mōrearea o ngā aituā karihi.
Ngā Painga me ngā Huakore
Ko te painga matua o ngā tauhohenga wehenga ko tōna whai huatanga ki te whakaputa pūngao. Ka taea e te tauhohenga wehenga te whakaputa i te nui o te pūngao hiko mā te whakamahi i te iti o te wahie. Hei tāpiri, nā te hangarau kua roa nei e whakamahia ana, he mea ātaahua ngā tauhohenga wehenga mō ngā hiahia pūngao.
Heoi, ko tētahi arai nui ko te whakaputanga o ngā para irahiko, e hiahia ana ki te whakahaere me te rokiroki mō te wā roa, uaua hoki. Ko te mōrearea o ngā aituā, pērā i ngā mea i Chernobyl me Fukushima, ka tāpiri atu ki ngā āwangawanga mō te haumaru o tēnei hangarau.
Te Hanumitanga Karihi
Te Whakamāramatanga me ngā Mātāpono Mahi
Ko te hanumitanga karihi te tukanga e honoa ai ngā karihi ngota māmā e rua, pērā i ngā isotope hauwai deuterium me tritium, hei hanga i tētahi karihi taumaha ake, pērā i te herium, me te tukunga o te nui o te pūngao. Ko tēnei tukanga te pūtake pūngao e whakakaha ana i ngā whetū, tae atu ki te Rā.
I ngā pāmahana me ngā pēhanga tino tiketike, ka taea e ngā karihi hauwai te wikitoria i te pana hikohiko i waenga i ngā porotona me te whakakā. Ko te pūngao e tukuna ana i roto i tēnei tukanga i ahu mai i te rerekētanga papatipu i waenga i te matū tauhohe me ngā karihi hua, ka hurihia hei pūngao e ai ki te whārite rongonui a Albert Einstein, E=mc^2.
Ngā Mahi Hokohoko Whakakotahitanga
Ahakoa he nui te kaha o te hanumi karihi hei pūtake pūngao mutunga kore, kore-waro, he nui rawa ngā wero hangarau o te whakatutuki me te pupuri i ngā āhuatanga tino nui e tika ana mō te hanumi. Ko ngā Tokamaks me ngā stellarators ngā momo taputapu e rua e tino rangahauhia ana mō te whakatutuki i te hanumi whakahaeretia. Ko te tokamak he taputapu āhua-tōnati e whakamahi ana i ngā papa aukume hei whakau me te whakamahana i te plasma, te papa pūngao o ngā karihi ngota e tika ana mō te hanumi.
Ko tētahi o ngā kaupapa hanumi nui rawa atu kei te haere tonu ko te ITER (International Thermonuclear Experimental Reactor), e whai ana ki te whakaatu he puna pūngao whai hua, he haumaru hoki te hanumi karihi. Heoi anō, kei te mau tonu ngā wero nui, tae atu ki te whakawhanake i ngā rauemi ka taea te tu atu ki ngā āhuatanga tino kino me te whakahaere i te pumau o te plasma.
Ngā Painga me ngā Huakore
Ko te painga matua o te hanumitanga ko tōna pūmanawa hei pūtake pūngao mutunga kore, ā, he pai hoki mō te taiao. He iti ake te para irahiko ka puta mai i te hanumitanga i tērā i te wehenga, ā, kāore he tukunga hau kati kōtuhi e puta mai ana, he otinga pai rawa atu tēnei mō ngā raruraru pūngao me te taiao mō te wā roa.
Heoi, ko ngā arai matua ko ngā wero hangarau nunui me ngā utu tino teitei mō te whakatutuki me te pupuri i ngā tikanga hanumi. Kei te tīmatanga tonu te hangarau mō te hanumi whakahaeretia, ā, tera pea ka roa ngā tekau tau i mua i te whakamahinga arumoni.
Ngā Whakamahinga me ngā Whakatairanga: Te Whakataurite i te Wehenga me te Whakakotahitanga
I te Whare Hiko
I tēnei wā, ko ngā tauhohenga wehenga anake kua whakamahia whānuitia mō te whakaputa hiko. Tata ki te 10% o te hiko o te ao e tukuna ana e ngā tipu hiko karihi e ahu mai ana i te wehenga. He rerekē, kei te wāhanga whakamātautau tonu ngā tipu hiko e ahu mai ana i te hanumi. Mena ka angitu te hokohoko i te hangarau hanumi, he nui te kaha ki te neke i tētahi wāhanga nui o te kawenga hiko o te ao ki tēnei pūtake nā ōna painga.
I te mara hauora
He mea nui anō hoki te mahi a ngā tauhohenga wehenga i roto i te rongoā, inā koa i roto i te hanga i ngā isotope irahiko e whakamahia ana mō te tātaritanga me te maimoatanga. I tua atu, kāore he tono hauora e pā ana ki te whakakotahitanga i tēnei wā, nā te mea kei te tīmatanga tonu te hangarau.
Pānga ki te Taiao
He nui ngā āwangawanga mō te taiao mō ngā para irahiko mai i ngā tauhohenga wehenga, e hiahia ana kia haumaru te rokiroki me te whakahaere mō te wā roa. Engari, ko te whakakotahitanga, e oati ana i tētahi pūtake pūngao ma me te iti o ngā para, ahakoa me whakahaere hoki ngā rauemi e whakamahia ana i roto i ngā taputapu whakakotahitanga, pērā i ngā tokamaks, nā te mea ka taea e rātou te irahiko.
Haumarutanga
Ko te haumaru te āwangawanga matua i roto i te hangarau tauhohenga karihi. Kei te mōrearea ngā tauhohenga wehenga ki ngā aituā karihi kino, pērā i ngā aituā i Chernobyl me Fukushima. Nā ōna āhuatanga tauhohenga rerekē, e kiia ana he haumaru ake te whakakotahitanga nā te mea kāore e mau i te mōrearea ōrite o te tauhohenga rere (tauhohenga mekameka kore whakahaere).
Whakamutunga
He nui te kaha o ngā tauhohenga karihi, arā, te wehenga me te hanumi, hei whakatutuki i ngā hiahia pūngao o te tangata ā muri ake nei. He mea nui tonu te wehenga karihi i roto i te tuku pūngao me ētahi atu tono, ahakoa he wero kei te pā ki ngā para me ngā mōrearea haumaru. I tētahi atu taha, kei te tīmatanga tonu te huarahi ki te tono arumoni te whakakotahitanga karihi engari he kaha hurihuri hei puna pūngao mutunga kore, he pai hoki mō te taiao.
E whakaatu ana ēnei momo tauhohenga e rua i te āhua o te rangahau i roto i te ahupūngao karihi, ehara i te mea ka whakarato noa i ngā māramatanga hōhonu ki te ao whānui, engari ka taea hoki te hanga i te heke mai o te pūngao me te hangarau tangata. Nō reira, me aro nui atu, me haumi hoki te wehenga me te whakakotahitanga kia nui ake ai ngā painga me te whakaiti i ngā tūponotanga e pā ana ki tō rātou whakamahinga.
