Question

Why glass panes of old building are thicker from the bottom and thinner from top

Answer 1

Answer:

Explanation:

The reason is that in the days before plate glass was developed, glass windows were made by spinning a disk of molten glass. The glass spread out from thickest in the center to thinnest at the edges. Then the glass was cut into panes, this naturally lead to some parts of the pane being thicker than others.

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