Dewar hwj los ntawm lub XIX xyoo pua rau tam sim no

Dzheyms Dyuar (1842-1923) yog ib tug Scottish physicist thiab chemist uas nyob rau hauv London. Thaum lub sij hawm nws lub neej, nws tau yeej ntau prizes thiab medals rau ua ib qho zoo kawg npaum li cas ntawm discoveries, ntau yam uas tau ua si ib tug tseem ceeb luag hauj lwm nyob rau hauv txoj kev loj hlob ntawm lub caij nyoog sciences. Ntawm nws cov tau nyob rau hauv physics yog suav tias yog ib tug tseem ceeb pab rau txoj kev tshawb no ntawm lub preservation kub nrog ib tug ntaus nws tsim, uas yog hu ua "dewar". Qhov no unit yog tsim los rau khaws cia sib txawv tshuaj ntawm kom los txo kub.

Keeb kwm ntawm creation

Lub Dewar txog ntsha yog ib tug upgraded version ntawm tus dais, uas yog tsim los ntawm lub German tus paub txog Veynholdom. Nyob rau hauv cov ntaub ntawv no, nws muaj qhov sib txawv. Veynholda invention muaj hauv daim ntawv ntawm ib tug iav ntawm lub box nrog ob phab ntsa thiab ib tug Dewar ho hloov cov qauv. Los ntawm analogy nrog lub compartment, nws kuj yog ob-walled ntaus ntawv, ib lub tshuab nqus tau tsim ntawm cov phab ntsa ntawm lub ntaus ntawv, thiab lawv tau nyiaj-plated, thiab nyob rau hauv thiaj li yuav txo evaporation ntawm cov kua, tus ntaus ntawv tau raug roj caj pas.

daim ntawv thov

Rau hnub tim, zus tau tej cov Dewars mus txog ib tug muaj scale, txij li thaum lawv yog siv lug tsis tau tsuas yog nyob rau hauv ntau yam industries, tab sis kuj nyob rau hauv lub neej txhua hnub. Ob peb cov neeg paub hais tias cov thermos kuj Dewar. Hais txog kev ua lag luam, muaj yog feem ntau siv ib tug Dewar hlab ntsha rau kua nitrogen thiab lwm yam kriozhidkostey. Tsis tas li ntawd, qhov no ntaus ntawv yog feem ntau siv nyob rau hauv Veterinary thiab tib neeg cov tshuaj rau cov cia ntawm ntau yam lom cov ntaub ntawv.

Vim hais tias sib txawv ntawm cov ntsha muaj ntau lub hom phiaj, thiab ces lawv yog siv nyob rau hauv ntau txoj kev, tab sis nyob rau hauv tag nrho cov mob ua ntej ib tse nrog koj txheem nyob rau hauv ib lub taub ntim, koj yuav tsum coj nws mus rau qhov tsim nyog kub, piv txwv li. E. Thaum tshav kub kub los yog txias. Qhov kub ntawm ib yam khoom uas yog nyob rau hauv lub ntaus ntawv yog khaws cia vim ob yam: lub thermal rwb thaiv tsev thiab tshwm sim nrog nws dab.

thermos

Lub nto moo tshaj plaws thiab nrov hauv daim ntawv ntawm Dewar yog ib tug thermos. Nyob rau hauv thaum ntxov XX xyoo pua, Reinhold Burger me ntsis hloov lub ntaus ntawv yuav ua rau nws haum rau domestic siv. Lub iav hwj tau muab tso rau hauv ib tug hlau casing, li no ua rau nws muaj kev ruaj ntseg thiab ntau check, thiab plug, uas yog ntsia tau rau hauv lub Dewar hwj stopper twb hloov thiab lub hau.

Xub thawj, lub inventor vam hais tias xws li ib tug ntaus ntawv yog siv rau khaws khoom noj cia, tab sis raws li ib tug tshwm sim ntawm ib tug thermos kuj nrov precisely vim hais tias ntawm yog dab tsi nws yuav rau ib ntev lub sij hawm mus kom qhov kub ntawm lub haus. Tav su thermos yug yuav suav hais tias 30 lub Cuaj Hli Ntuj 1903, vim hais tias nyob rau hnub ntawd Burger tau txais ib tug patent rau nws tsim muaj thiab pib lawm.

Txawm hais tias zaj dab neeg ntawd tsis xaus muaj. Dewar, uas tau kawm tau hais tias ib tug upgraded version ntawm nws ntaus tau txais coj mus muag tau zoo thiab pab tau dlej Burger, yuav tsum yog ib tug sib foob. Tab sis vim hais tias nws ntaus ntawv yog tsis patented, lub tsev hais plaub tsis tau siav nws yuav tsum tau.

Dewar txog ntsha yees los ntawm Scottish zaum tau pom coob leej ntau tus tej chaw yuav luag tam sim ntawd tom qab nws yug los, thiab tsis poob mus rau hnub no. Nws yog dav siv nyob rau hauv ob qho tib si kev lag luam thiab nyob rau hauv lub neej txhua hnub, ua rau nws ib tug ntawm cov tseem ceeb tshaj plaws inventions ntawm lub XIX caug xyoo.