Keeb kwm ntawm pob zeb siv lead ua: nws tsim li cas thiab nws siv rau dab tsi?

2024 Tus sau: Henry Conors | [email protected]. Kawg hloov kho: 2024-02-12 07:51

Peb coob leej nco txog cov chandeliers siv lead ua ntawm Soviet era, uas peb niam peb txiv suav hais tias yuav luag yog khoom muaj nqis. Tau kawg, niaj hnub no peb twb kho cov khoom ua los ntawm pob zeb siv lead ua yam tsis muaj kev ntxhov siab ntau, tab sis peb tsis tuaj yeem paub txog lawv qhov kev zoo nkauj.

Crystal yog ib qho ntawm ntau hom quartz, uas tej zaum yog cov ntxhia ntau tshaj plaws hauv ntiaj teb. Muaj cov pa luam yeeb, daj thiab liab, nrog rau cov pob zeb dub uas tsis tshua muaj hu ua morion. Nyob rau hauv ib lo lus, hom pob zeb siv lead ua muaj ntau haiv neeg, thiab lawv thaj chaw ntawm daim ntawv thov muaj ntau heev.

Koj xav tias lub npe ntawm cov pob zeb no tuaj qhov twg? Cov Greeks muab nws lub npe krystallos, uas txhais tau tias "ice" hauv Lavxias. Nyob rau hauv cov lus ntawm chemistry, txhua yam yog ntau prosaic. Crystal yog silicon dioxide.

Raws li tau hais lawm, nws muaj ntau heev, thiab yog li ntawd muaj kev tso nyiaj thoob plaws ntiaj teb. Qhov no zoo li cas, tab sis tsis muaj cov khoom zoo nkauj tsawg tsim?

Tag nrho cov pob zeb siv lead ua pob zeb yog tsim thaum cov txheej txheem magmatic, thaum cov pob zeb molten txias thaum nkagoxygen. Tsis tas li ntawd, geologists kuj tau piav qhia txog hydrothermal hom kev loj hlob: qhov no yog thaum kub alkaline kev daws teeb meem saturated nrog silicon ntsev maj mam evaporate nyob rau hauv lub siab kub thiab nrog rau cov pa oxygen. Hauv qhov no, tus naj npawb ntawm cov xim sib txawv ntawm cov siv lead ua yog ntau dua.

pob zeb no tau mined txij thaum ub. Ntawm chav kawm, thaum xub thawj tsis muaj mines thiab txawm qhib pits. Tsis tshua muaj cov khoom siv lead ua, zoo li lwm cov pob zeb cobblestone, tau pom nyob rau ntawm cov dej ntws nrawm uas ntws los hauv qab cov dej khov. Cov khoom tau muab faib thiab hauv av.

Historians thiab ethnographers hais tias cov pob zeb siv lead ua pob zeb ua lub luag haujlwm tseem ceeb hauv kev hloov pauv ntawm tib neeg.

Rau nws cov kev ua tiav, kev sib koom tes zoo tshaj plaws ntawm kev txav, kev loj hlob zoo ntawm kev txawj tsav tsheb zoo thiab kev ua siab ntev ntawm tus tim tswv tiag tiag: cov khoom tau polished nrog cov xuab zeb zoo, siv cov hlua ntxhib ua los ntawm cov ntoo fibers rau qhov no.

Nws tau paub txij thaum ub los tias tom qab polishing, lub pob zeb no pib tsis zoo, uas koj tsis tuaj yeem saib ib zaug, tau txais qhov zoo ib yam li pob zeb diamond. Cov cuab yeej no tsis yog siv rau lub hom phiaj zoo xwb: txog tam sim no, cov tswv ntawm cov cuav tau nthuav dav thoob plaws ntiaj teb, hloov cov pob zeb diamond kim kim rau lawv cov pob zeb siv lead ua ersatz.

Tab sis thaum ub, kev siv cov ntxhia no tsis yog phem heev. Lenses los ntawm nws tau siv los ntawm ancient metallurgists, teeb tsa thawj qhov kev sim hauv keeb kwm ntawm cov ntshiab smelting ntawm hlau, thiabTibetans siv polished pieces ntawm siv lead ua rau cauterize qhov txhab los ntawm kev tsom mus rau lub hnub ci los ntawm lawv. Cov txiaj ntsig tsis yog tsuas yog nyob rau hauv cov nyhuv thermal: cov khoom no zoo kawg nkaus kis UV hluav taws xob, uas kuj muaj kev cuam tshuam rau cov kab mob microflora. Nws tsis yog qhov xav tsis thoob tias cov pov thawj tau siv cov pob zeb siv lead ua pob zeb, kos cov tais thiab cov goblets los ntawm nws.

Cov Aztecs thiab lwm haiv neeg thaum ub ntawm Yucatan yog qhov tsis zoo ntawm qhov no: ntau yam cuab yeej siv los txiav cov neeg raug kaw tseem nyob tau tsim los ntawm nws.