You've probably heard that old cathedral glass is secretly flowing downhill, thicker at the bottom after centuries of slow melting. It's a great story. It's also not true — and the real explanation is stranger than the myth.
That's chapter one of my newest book, Seven Things You Should Know About Glass — out now. Seven surprising things about a material we look through constantly and think about almost never: a Roman invention that made glass affordable overnight, a Venetian island that guarded its glassmaking secrets on pain of death, a 1952 kitchen-sink observation that changed how nearly all flat glass is made today, and the reason the entire internet runs through glass clearer than anything you've ever seen. Plus a bonus chapter on Ben Franklin's glass-powered musical instrument.
https://www.amazon.com/dp/B0HD7N766C
As always — short, accurate, and hopefully something you're glad to know now.
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