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A comment on Why Is Glass Rigid? Signs of Its Secret Structure Emerge. Parent comment

Re:Why Is Glass Rigid? Signs of Its Secret Structure Emerge by throwaway_pdp09 on Thursday July 16, 2020 @04:16AM (#23856910)
I have seen that. I suspect it's from production. If so, why do people orient the droops downwards, becomes the question.
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Re:Why Is Glass Rigid? Signs of Its Secret Structure Emerge by adw on Thursday July 16, 2020 @05:00AM (#23857103)
The other orientation is much less stable; it’s a stationary point but if nudged will rotate away from droop-up.

Similar reason old pre-float-glass windows are mostly found thick side down; easier to fit that way because they’re more stable. The myth that they flowed over time is just that. :-)

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Re:Why Is Glass Rigid? Signs of Its Secret Structure Emerge by NinjaViking on Thursday July 16, 2020 @06:23AM (#23857521)
And they're less likely to leak in rain when installed that way.
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