Photo of the week #183 | glass
Coloring glass was known to the ancient Sumerians; in Egypt during the New Kingdom, vessels were made from multi-colored glass. For coloring, various impurities were added to the mixture of soda and sand when melting glass. For example, copper oxides are used to produce red color.
Окрашивание стекла было известно древним шумерам, в Египте периода Нового Царства из разноцветного стекла изготавливались сосуды. Для окраски в смесь соды и песка при выплавке стекла добавляли различные примеси. Например, для получения красного цвета используются оксиды меди.
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