Imbali yoPhuculo lweDewar

Ibisele yaziwa kwiRoma yakudala leyoIzikhongozeli eziphindwe kabiniinokuhlala ifudumele. Kwibhombu yePompeii, isitya sombane esiphindwe kabini sasimbiwe.

Yale mihlaI-Dewar Flaskyasungulwa nguScotland ogqirha kunye ne-scomist sir James dewar. Ngo-1892, uDewar uyemfundisa i-Berg ye-Berg yokuvuthuza ibhotile ekhethekileyo yeglasi. Esi sisikhongozeli seglasi yeglasi ephindwe kabini, zombini iindonga ze-bile zigutyungelwe ngesilivere, kwaye ke umoya phakathi kodonga lumbini luye lwafuduswa ukuba lube le vacuum. Isilivere kwizilayidi ezimbini zodonga lwe-Gllbladder zinokuthintela imitha kunye nokubekwa kwempahla nobushushu, kwaye ukutshixelwa kwendawo yokusebenza kunokuthintela ukuhambisa kunye nokusebenza kobushushu, ke ubushushu bolwelo kwibhotile akukho lula ukutshintsha. Emva kwexesha, iBerg yenza iqokobhe nge-nickel ukukhusela imbiza yeglasi. Ekuqaleni, le dewar isetyenziswe kuphela kwiilebhu, izibhedlele kunye nohambo, kwaye kamva zasetyenziswa kwi-picnics okanye koololiwe.

NgoJanuwari 20, 1893, uDewar wabhengeza ukuba wayewalekise i-criostat ekhethekileyo-kamva ebizwa ngokuba yi-Dewar Tank. Ngo-1898 wasebenzisa i-dewar kwi-hydrogen ye-hydrogen, ukufikelela kwi-20.4k. Ukuqinisekiswa kwe-hydrogen kwakhona kunyaka olandelayo, kwaye i-steam yafikelela kwi-12k ngokukhupha umphunga phezu kwe-hydrogen eqinileyo. Isikhongozelo se-criogenic irhasi yotywala eyenziwe nge-fewar yi-fewar yiglasi yeglasi ye-termil yespile enesilivere nge-vacuum embindini. Olu hlobo lwesikhongozeli kamva lwaguqulwa kamva lwaba yinto yemihla ngemihla eyaziwa ngokuba ngabantu abadala - i-thermos. Ngo-1925, i-thermos ephantsi yeplastiki yaqala ukuthengiswa.Kwangelo xesha, izitya ezifanayo zangaphantsi ziyafuneka ukuze kuthunyelwe kunye nokugcinwa kwegesi yolwelo kwilabhoratri. UDewar wayila i-thewar yentsimbi ngo-1906 ukugcina ioksijini ye-alfar. Isikhongozeli sesinyithi esinamandla ee-110,000 ezenzelwe ukuthuthwa kwe-Rilay kuneqondo le-oxygen yeoksijini malunga ne-0.1% ngemizuzu ye-hydrogen ye-hydrogen ye-0.8% ngemini.

Isekwe ngo-1998, i-jiians i-jiieshen zentsimbi ye-jien, i-ltd. sisiseko esibanzi sensimbi yokudibanisa i-R & D, ukuvelisa, ukuthengisa kunye nenkonzo. Ngobuchule obukhulu, iimveliso ezingqongqo kunye nezisemgangathweni, ziphumelele ngakumbi kwaye uninzi lwabathengi bayazithemba, kwaye batsalele iiarhente ezininzi.