Society of Glass Technology · [Sheffield] · leaf 549
not so assured aswhen glasses of equal expansions are used. 170 JOURNAL Oir THb] SOOiKiY Oi< GLA.S8 TECHNOLOGY. Little is known of the athermancy of glass. On the one hand,glasses coloured by metallic oxides are athermanovis, that is, inter-cept and store up heat rays, and, on the other, only… … Fig. 102.
Glass
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