Mhlawumbe ubhadane lakwaSARS-CoV-2 lwenze wonke umuntu waba nolwazi ngezempilo. Imikhankaso yangaphambilini ye-coronavirus ebandayo ejwayelekile kanye negciwane lomkhuhlane manje selijoyinwe yiCovid-19 entsha. Umehluko phakathi komkhuhlane ovamile nomkhuhlane noma i-Covid-19 kungaba sezingeni lokushisa. Ngakho-ke, yiba i-thermometer enhle ye-gallium ekhaya kungaba umqondo omuhle manje kunanini ngaphambili.
La ma-thermometer we-gallium awadingi amabhethri, ngakho-ke azoba njalo itholakala njalo lapho uyidinga. Ngaphezu kwalokho, njengoba zingezona ezedijithali, kulula kakhulu ukuzisebenzisa, ngisho nabantu asebekhulile abakuthola kunzima ukuqonda ama-thermometer anamuhla. Futhi ngaphezu kwakho konke, abasenayo ingozi yama-thermometer asuselwa e-mercury, ngoba i-gallium ayinabo ubuthi obufana ne-Hg.
Yini i-thermometer ye-gallium?
Ithemometha ye-gallium iyithuluzi lokulinganisa izinga lokushisa elifana namathemometha akudala emercury, kuphela awasebenzisi ikhemikhali yensimbi eyingozi eye yavinjelwa ngenxa yobuthi bayo. Kunalokho basebenzisa i-gallium, noma kunalokho, basebenzisa ingxubevange engamanzi ebizwa nge- galinstan.
Indlela ye ukusebenza kubaluleke kakhulu. Isibani sayo sensimbi, lapho kugcinwa khona i-galinstan, lapho ihlangana nendawo eshisayo, njengomzimba womuntu, izokwanda. Lokho kuzothuthukisa insimbi engamanzi ngokusebenzisa ithubhu enesilinganiso sokushisa. Lokho kuzokuletha ezingeni lokushisa elikutholayo, ngakho-ke ungatshela ukuthi unemfiva noma cha.
Lokho, kufana ncamashi nalabo abasebenzisa i-mercury, kuphela akuyona into enobuthi. Eqinisweni, i- I-European Union kwavinjelwa zonke izinhlobo zamadivayisi asebenzisa i-mercury ngo-2009. Kusukela lapho bekungavunyelwe ukuthengisa lolu hlobo lwe-thermometer, kufakwa ezinye esikhundleni se-gallium alloy.
Wathi ingxubevange, galinstanNgokuyisisekelo kuwuketshezi oluxuba i-gallium, i-indium nethini, okwenza ukuthi ihlale isesimweni soketshezi ekamelweni lokushisa futhi ihloniphe kakhulu imvelo futhi ingenabo ubuthi uma iphuka ihlangana nawe. Futhi ngeke zenze ama-amalgamu anezinto zegolide, njengoba kwenzeka nge-mercury, ngakho-ke ubucwebe bakho buzophepha.
Ngaphezu kwalokho, i ukwethembeka noma ukuzwela kulawa ma-thermometer awashintshwanga ngokufakwa kwe-mercury. Zinembile impela, zikwazi ukwehluka ngo-0.1ºC kuphela ezilinganisweni.
Uyisebenzisa kanjani i-thermometer ye-gallium?
I-gallium thermometer, noma i-galinstan, isetshenziswa ngokufana ncamashi ne-mercury thermometer. Okusho ukuthi, yi-thermometer leyo udinga ukuxhumana, ngokungafani nodokotela wamehlo. Izinyathelo zenqubo yokusetshenziswa okufanele yilezi:
- Ngaphambi kokuqala isilinganiso, bamba i-thermometer phezulu bese uyinyakazisa ngokunyakaza okusheshayo ngesihlakala nokunakekela ukungashayi lutho noma ukuwa. Lokhu kuzosiza ukuqinisekisa ukuthi izinga lokushisa lehlela ku-35ºC.
- CBeka i-thermometer endaweni ekhethiwe ukukala izinga lokushisa, okungcono ekhwapheni lenhlanzeko (ezinye izindlela, ezinjengokulinganisa emlonyeni noma kunxande kuzobandakanya ukubulala amagciwane ngokwanele ngensipho yokubulala amagciwane namanzi).
- Linda isikhathi cishe semizuzu emi-3 bese uhlola izinga lokushisa elimaka.
I-Durante inqubo ukulinganisa bekungafanele kulahlekelwe ukuxhumana nobuso bomzimba lapho ubekwe khona. Ngaphezu kwalokho, isiguli kufanele siphumule, ngaphandle kokwenza umsebenzi wangaphambilini, ngoba kungaguqula isilinganiso. Ngaphezu kwalokho, uma isetshenziswa emlonyeni, izenzo ezifana nokubhema, noma ukudla ukudla noma iziphuzo nakho kungashintsha imiphumela.
Uma kwenzeka i-thermometer iphuka, Ungakhathazeki. Ngokungabi nayo i-mercury ngeke kube yingozi. Kumele uthathe izicucu bese uhlanza indawo enamabala ne-galinstan ngephepha lokumunca elifakwe otshwaleni.