Chiyambi cha Mirror

Kalilore wamadzi, nthawi zakale: kalilole wakale amatanthauza beseni lalikulu, ndipo dzina lake ndi Jian."Shuowen" adati: "Jian atenge madzi kuchokera ku mwezi wowala ndikuwona kuti akhoza kuunikira njira, amawagwiritsa ntchito ngati galasi.

Girasi wamwala, 8000 BC: Mu 8000 BC, anthu a ku Anatolian (omwe tsopano ali ku Türkiye) adapanga galasi loyamba lapadziko lonse lapansi lokhala ndi obsidian wopukutidwa.

Magalasi amkuwa, 2000 BC: China ndi amodzi mwa mayiko oyamba padziko lapansi kugwiritsa ntchito magalasi amkuwa.Magalasi amkuwa adapezeka m'malo a Qijia Culture mu Neolithic Age.

Galasi wagalasi, kuyambira kumapeto kwa zaka za zana la 12 mpaka kumayambiriro kwa zaka za zana la 14: galasi loyamba la galasi padziko lapansi linabadwa ku Venice, "ufumu wa galasi".Njira yake ndikuphimba galasi ndi mercury, yomwe imadziwika kuti galasi lasiliva.

Galasi yamakono inapangidwa ndi njira yopangidwa ndi katswiri wa zamankhwala wa ku Germany Libig mu 1835. Nitrate ya siliva imasakanizidwa ndi wothandizira kuchepetsa kuti siliva nitrate iwonongeke ndikugwirizanitsa ndi galasi.Mu 1929, abale a Pilton ku England anawongolera njira imeneyi mwa kupitiriza plating siliva, copper plating, kupaka utoto, kuyanika ndi njira zina.

Kalilore wa aluminiyamu, m'ma 1970: sungunulani aluminiyumu mu vacuum ndikusiya nthunzi ya aluminiyamu kuti ipangike kupanga filimu yopyapyala ya aluminiyamu pagalasi.Magalasi opangidwa ndi aluminiyumuwa adalemba tsamba latsopano m'mbiri ya magalasi.

Kalilore wokongoletsera, 1960 - alipo: Ndikusintha kwa zokongoletsa, kukongoletsa kwanyumba kwayambitsa mafunde atsopano.Makonda kukongoletsa galasi ayenera kubadwa, ndipo salinso chikhalidwe single lalikulu chimango.Magalasi okongoletsera ali ndi kalembedwe kake, amasiyana mosiyanasiyana komanso amagwiritsira ntchito ndalama.Sizinthu zapakhomo zokha komanso zinthu zokongoletsera.