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Comments to #8
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Labour 4 year s ago
#14 Harlequin bug's eggs... ew
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Kitten 4 year s ago
#2 clean your f*§$%ing nails 
Anyone know what those round impressions are called, and what are they for?
Answer: Old windows were made of glass spun out into flatness. That’s the center of the spin.
New windows are made of glass floated on a pool of molten tin, which makes very flat panes without any annoying bullseyes.