Ib puag ncig 500 BC, thawj lub lim dej hauv tsev tau tshwm sim thaum tus kws tshawb fawb Greek Hippocratestsim lub tes tsho Hippocratic, uas muaj cov ntaub yooj yim rov qab lim. Thaum lub sij hawm peb thiab plaub caug xyoo, cov neeg Iyiv ntxuav lawv cov dej haus uas siv ntau txoj hau kev.
Leej twg ua thawj lub tshuab lim dej?
Centuries tom qab, Hippocrates, tus txiv nto moo ntawm cov tshuaj, pib ua nws cov kev sim hauv dej huv. Hippocrates tsim nws tus kheej lim dej lim dej kom "purify" cov dej uas nws siv rau nws cov neeg mob.
Vim li cas dej thiaj tsim tau?
Txoj Kev Sib Txuas Suav Zoo. Nws tau xav tias rov qab mus txog xyoo 1827 John Doulton thiab nws tus tub Henry, (ntawm Askiv zoo Suav teb thiab cov khoom siv hluav taws xob) tau tsim lub tshuab lim dej ceramic kom tshem tawm cov kab mob ntawm cov dej haus.
Thaum twg cov xuab zeb pom tau tsim?
In 1827, dab tsi yog hu ua qeeb xuab zeb lim tau tsim nyob rau hauv Scotland los ntawm ib tug pej xeem engineer hu ua Robert Thom. Ob xyoos tom qab ntawd, ib tug kws ua haujlwm hauv pej xeem hu ua James Simpson tau tsim cov lim dej zoo sib xws uas tau hloov kho rau kev siv thoob ntiaj teb.
Dab tsi yog qhov kev xav ntawm kev pom?
25.0 Taw qhia. Kev lim dej yog txheej txheem uas cov khoom muaj nyob rau hauv qhov raug tshem tawm yog cais tawm ntawm cov kua lossisroj siv lub nruab nrab ntxeem tau, uas khaws cov khib nyiab tab sis tso cai rau cov kua dej dhau los. Thaum qhov kev faib ua feem ntawm cov khib nyiab hauv cov kua tsawg dua, cov lus qhia meej yog siv.
