Imbali yeeflaski zevacuum inokulandelwa emva ekupheleni kwenkulungwane ye-19.Ngowe-1892, ingcali yefiziksi nekhemisti yaseSkotlani uMhlekazi uJames Dewar wayila iflaski yokuqala yokucoca.Injongo yayo yantlandlolo yayiyisikhongozeli sokugcina nokuthutha iigesi ezinolwelo ezifana neoksijini engamanzi.I-thermos ineendonga ezimbini zeglasi ezahlulwe yindawo yokucoca.Le vacuum isebenza njenge-insulator, ikhusela ukuhanjiswa kobushushu phakathi kwezinto eziqulethwe kwi-flask kunye nokusingqongileyo.Ukuveliswa kweDewar kwabonakala kusebenza kakhulu ekugcineni ubushushu bolwelo olugciniweyo.Ngomnyaka we-1904, inkampani ye-Thermos yasekwa e-United States, kwaye uphawu lwe-"Thermos" lwafana neebhotile ze-thermos.Umseki wenkampani, uWilliam Walker, waqaphela amandla okwenziwa kweDewar kwaye wayilungelelanisa ukusetyenziswa kwemihla ngemihla.Wongeza i-linings yangaphakathi yesilivere kwiiflaski zeglasi ephindwe kabini, ephucula ngakumbi ukugquma.Ngokuthandwa kweebhotile ze-thermos, abantu baye benza inkqubela phambili ekuphuculeni imisebenzi yabo.Ngeminyaka yee-1960, iglasi yatshintshwa zizinto ezomelele ngakumbi njengentsimbi engatyiwa kunye neplastiki, nto leyo eyenza ukuba iibhotile ze-thermos zomelele kwaye zifaneleke ngakumbi kwimisebenzi yangaphandle.Ukongeza, iimpawu ezinje ngee-screw caps, ii-spouts zokugalela kunye nezibambo ziye zaziswa ukuze kube lula kunye nokusetyenziswa.Ukutyhubela iminyaka, i-thermoses iye yasetyenziswa ngokubanzi ukugcina iziselo zishushu okanye zibandayo.Itekhnoloji yayo yokugquma isetyenziswe kwezinye iimveliso ezahlukeneyo, ezinje ngeemagi zokuhamba kunye nezitya zokutya.Namhlanje, iibhotile ze-thermos ziza kwiindlela ezahlukeneyo, ubungakanani kunye nezixhobo ukuze zihambelane neemfuno ezahlukeneyo kunye nezinto ezikhethwayo.
Ixesha lokuposa: Aug-21-2023