Uma sicabanga ngamazinga okushisa abandayo, singase sicabange ngosuku olubandayo lwasebusika, kodwa ingabe wake wazibuza ukuthi kunjani ngempela ukubanda okujulile? Uhlobo lwamakhaza ashubisa umnkantsha kangangokuthi lungaba yiqhwa izinto ngokuphazima kweso? Kulapho i-nitrogen ewuketshezi nomoya-mpilo owuketshezi kungena khona. Lezi zinto zivame ukusetshenziswa ocwaningweni lwesayensi, ezinkambisweni zezokwelapha, kanye nobuciko bokupheka. Kule bhulogi, sizocubungula izici zalezi zinhlanganisela ezimbili futhi sihlole umhlaba othakazelisayo wokubanda okujulile.
I-nitrogen ewuketshezi iwuketshezi olungenambala, olungenaphunga, futhi olunganambitheki olubila ku- -195.79°C (-320°F). Yakhiwe ngama- molecule e-nitrogen apholile ukuze abe uketshezi. Enye yezinto eziyingqayizivele ye-nitrogen eyi-liquid ukuthi ikwazi ukumisa izinto ngokushesha lapho ithintana. Lokhu kwenza kube usizo ekulondolozeni i-cryogenic yezinto eziphilayo, njengesidoda, amasampula ezicubu, kanye nezinto eziphilayo eziphelele. Ibuye isetshenziswe ekukhiqizeni i-carbon fiber kanye nokupholisa izingxenye zekhompyutha.
Ngakolunye uhlangothi, umoya-mpilo owuketshezi uwuketshezi oluluhlaza okwesibhakabhaka, olungenaphunga, nolungenambitheki olubila ku- -183°C (-297°F). Yakhiwa ama-molecule e-oksijini apholile ukuze abe yisimo samanzi. Ngokungafani ne-nitrogen ewuketshezi, umoya-mpilo owuketshezi usebenza kakhulu futhi ungavutha kalula ngaphansi kwezimo ezithile. Lokhu kuyenza ibe wusizo ekuqhutshweni kwe-rocket, ukushisela, nokusika insimbi. Ibuye isetshenziselwe ekwelapheni izifo zokuphefumula, njenge-chronic obstructive pulmonary disease (COPD).
Uma kuziwa ekuhlanganiseni i-nitrogen ewuketshezi nomoya-mpilo owuketshezi, sithola ingxube ye-oxygen nitrogen. Le nhlanganisela ingaba yingozi ngenxa yamandla okusabela kokuqhuma. Kodwa-ke, ezindaweni ezilawulwayo, i-oxygen nitrogen ingasetshenziswa ngezinjongo ezihlukahlukene, njenge-cryotherapy noma ukwelashwa kokuvuselela isikhumba. Ngale ndlela, ingxube ye-nitrogen ewuketshezi kanye ne-oksijeni ye-liquid isetshenziswa esikhumbeni, okwenza imithambo yegazi iqine futhi inciphise ukuvuvukala.
Njengoba kushiwo ngaphambili, umkhuhlane ojulile ungaba nezinhlelo zokusebenza eziningi, futhi umhlaba we-Culinary awunjalo. Abapheki bangase basebenzise i-nitrogen ewuketshezi ukuze benze ukudla okufriziwe, okufana no-ayisikhilimu noma i-sorbet, ngokufriza ngokushesha ingxube nge-nitrogen ewuketshezi. Ngokufanayo, umoya-mpilo owuketshezi ungasetshenziswa ukwenza amagwebu namasoso afakwe umoya. Lawa masu asetshenziswa kaningi ku-molecular gastronomy ukuze kwakheke ukuthungwa okuyingqayizivele kanye nezethulo.
Umuntu angase azibuze ukuthi siyithola kanjani i-nitrogen ewuketshezi nomoya-mpilo owuketshezi, uma kubhekwa amaphuzu awo aphansi kakhulu abilayo. Impendulo isenkambweni ebizwa ngokuthi i-fractional distillation, lapho umoya ucindezelwa futhi upholiswe uze ube uketshezi. Izingxenye ezihlukene zomoya, njenge-nitrogen ne-oxygen, zinamaphuzu ahlukene abilayo futhi zingahlukaniswa ngokusebenzisa i-distillation. Le nqubo idinga imishini ekhethekile futhi ngokuvamile yenziwa ngezinga lezimboni.
Sengiphetha, izakhiwo ze-nitrogen ewuketshezi nomoya-mpilo owuketshezi zibenza babe izingxenye ezibalulekile emikhakheni ehlukahlukene yesayensi, yezokwelapha, ngisho nokupheka. Lezi zinto zinikeza umbono othakazelisayo emhlabeni wamakhaza ajulile kanye nezindlela eziyinkimbinkimbi ezilawula ukuziphatha kwento. Ngocwaningo oluqhubekayo nokuthuthukiswa, singathola izinhlelo zokusebenza ezengeziwe zalezi zinhlanganisela esikhathini esizayo.
Isikhathi sokuthumela: Sep-28-2022
