Career glazier... Glass used to be put through rollers,at the edges of the sheet it was imprecise in thickness.. Old glass is thicker at the bottom by installers choice. Most pressure from gravity was on bottom, so you cut the glass so the skinny side is up to reduce breakage. Taught these details restoring an old train.
XenosapianRain t1_j6h61yy wrote
Reply to comment by Farnsworthson in ELI5- what is the difference between a liquid and a fluid? by stinkybuttttt
Career glazier... Glass used to be put through rollers,at the edges of the sheet it was imprecise in thickness.. Old glass is thicker at the bottom by installers choice. Most pressure from gravity was on bottom, so you cut the glass so the skinny side is up to reduce breakage. Taught these details restoring an old train.