Galasi: Bweretsani kuwala, mthunzi ndi mtundu

Maonekedwe a zinthu zamagalasi anayambika ku Mesopotamiya zaka 3,600 zapitazo, koma anthu ena amati akhoza kukhala ngati magalasi a ku Iguputo.Umboni wina wofukulidwa m'mabwinja umasonyeza kuti magalasi enieni oyambirira ankawoneka kumpoto kwa Syria masiku ano.Madera a m'mphepete mwa nyanja, olamulidwa ndi anthu a ku Mesopotamiya kapena AiguptoZopangira magalasi zakale kwambiri zinali mikanda yagalasi yomwe idawonekera pakati pazaka chikwi chachiwiri BC, zomwe mwina zidachitika mwangozi mwangozi zopangidwa ndi zitsulo poyamba, kapena zida zamagalasi zopangidwa ndi njira zofananira popanga zojambula mbiya.

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Pambuyo pakuwonekera kwa zinthu zamagalasi, zakhala chinthu chapamwamba.Mpaka kumapeto kwa Bronze Age, kugwiritsa ntchito galasi koyambirira ndi anthu kunali kulisungunula kukongoletsa miphika.

Zigawo zazikulu za galasi wamba ndi silicon dioxide, sodium carbonate ndi calcium carbonate.Magalasi ambiri amasungunuka pa madigiri 1400-1600 Fahrenheit.Ndi chitukuko chofulumira cha sayansi ndi luso lamakono, luso la galasi, ngati mawonekedwe apadera a luso, limaperekanso miyoyo ya anthu ndipo mapangidwe a Art abweretsa kusintha kosinthika.

Popanga zodzikongoletsera zamakono, galasi ndi chimodzi mwazinthu zofunika kwambiri.Makhalidwe apadera a galasi amapereka ntchito yodabwitsa kwambiri.Ndi yowonekera, yosalimba, yolimba, komanso yamitundumitundu.Zikuwoneka zodziwika bwino komanso ngati dziko lakutali.Itha kukhalapo ngati mpira wawung'ono wagalasi, ndipo imatha kunyamulidwa ngati nyumba yokongola kwambiri.Kodi munayamba mwagwirapo mkanda wagalasi mwamphamvu muubwana wanu kusonyeza maonekedwe achimwemwe ndi okondedwa amenewo?

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Nthawi yotumiza: Nov-24-2021