Glass is not a slow liquid
Cuts · English · @cuts_en ·
Science in a minute: busting the glass myth. AI-generated.
Transcript
0:00 You may have heard that old windows are
0:02 thicker at the bottom because glass slowly
0:04 flows like a liquid.
0:05 That's a myth.
0:06 Glass is an amorphous solid —
0:08 its atoms are jumbled like a liquid,
0:11 but frozen firmly in place.
0:12 At room temperature it would take far longer
0:15 than the age of the universe to flow even a
0:18 little.
0:18 Old windows are uneven simply because
0:21 centuries ago glass was made by hand and came
0:24 out thicker on one side.
0:25 Glaziers just placed the heavy edge at the
0:28 bottom.