iav: Nqa lub teeb, duab ntxoov ntxoo thiab xim

Cov tsos ntawm cov khoom iav tuaj yeem taug qab rov qab mus rau Mesopotamia 3,600 xyoo dhau los, tab sis qee cov neeg hais tias lawv yuav yog cov khoom qub ntawm Egyptian iav khoom.Lwm cov pov thawj archaeological qhia tias thawj cov khoom iav tiag tiag tau tshwm sim nyob rau sab qaum teb Syria tam sim no.Cov ntug hiav txwv dej, txiav txim los ntawm Mesopotamians los yog EgyptiansCov khoom iav thaum ntxov yog iav hlaws uas tau tshwm sim nyob rau hauv nruab nrab ntawm lub xyoo pua thib ob BC, uas tej zaum yuav raug yuam kev los ntawm cov khoom siv hlau ua thaum xub thawj, lossis cov khoom iav ua los ntawm cov txheej txheem zoo sib xws hauv kev tsim khoom. pleev xim rau lub lauj kaub tais diav.

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Tom qab cov tsos ntawm cov khoom iav, nws tau ua ib yam khoom kim heev.Txog rau thaum xaus ntawm Bronze Age, qhov ntxov tshaj plaws siv iav los ntawm noob neej yog yaj nws los kho cov vases.

Cov khoom tseem ceeb ntawm cov iav zoo tib yam yog silicon dioxide, sodium carbonate thiab calcium carbonate.Feem ntau cov iav melts ntawm 1400-1600 degrees Fahrenheit.Nrog rau kev loj hlob sai ntawm kev tshawb fawb thiab thev naus laus zis hauv zej zog, iav kos duab, ua ib daim duab kos duab tshwj xeeb, kuj ua rau tib neeg lub neej thiab kos duab tsim tau coj ib qho kev hloov pauv.

Hauv kev tsim cov hniav nyiaj hniav kub niaj hnub, iav kuj yog ib qho ntawm cov ntaub ntawv tseem ceeb.Cov yam ntxwv ntawm cov khoom siv tshwj xeeb ntawm iav muab kev ua haujlwm zoo dua qhov kev xav.Nws yog pob tshab, tsis muaj zog, tawv, thiab muaj yeeb yuj.Nws zoo li paub thiab zoo li lub ntiaj teb nyob deb.Nws tuaj yeem nyob tau zoo li lub pob iav me me, thiab nws tuaj yeem nqa tau raws li lub tsev zoo nkauj.Koj puas tau tuav lub iav hlaws nruj nreem hauv koj thaum yau los qhia tias muaj kev xyiv fab thiab ntxim nyiam?

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Post lub sij hawm: Nov-24-2021