06
Oct
Oct
Za Zogulitsa Zam'khichini Zodabwitsa: Zida Benjamin Thompson adanena kumayambiriro kwa zaka za m'ma 19 kuti ziwiya zakukhitchini nthawi zambiri zinkapangidwa ndi mkuwa, ndi zoyesayesa zosiyanasiyana zoletsa mkuwa kuti usagwirizane ndi chakudya (makamaka zomwe zili ndi acidic) pa kutentha komwe kumagwiritsidwa ntchito kuphika, kuphatikizapo malata, enamelling, ndi varnish. Iye anaona kuti chitsulo chinagwiritsidwa ntchito ngati […]