Society of Glass Technology · [Sheffield] · leaf 184
uid at once began to flow downward alongthe rod, being replaced by fresh, unsaturated liquid from outside.The circulation observed is roughly indicated in the sketch, Fig. 8,but it is very much more convincing to watch the process * inreality. The character of these currents at once explains the… … creasingly loaded with dissolved matter, and therefore becomesdecreasingly active as a solvent, with the result that the rod ismost rapidly attacked near the top and to a decreasing extent withincreasing depth. The reversed or y\ taper is thus fully accounted for, but itremains to account for the…
Glass
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