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Yhn ScienceBiology first seen 1 d ago, last 45 min ago, peak #7

What is a Bologna bottle?

Original: Bologna Bottle

A Bologna bottle is a glass bottle with unusual properties: it can withstand being filled with water or used as a hammer, yet a small drop of material inside makes it shatter instantly. The glass is rapidly cooled during manufacture, leaving surface compression that holds it together until disturbed. It is often cited as a classic demonstration of tempered glass behaviour.

Why now: The odd physics of a bottle that can hammer nails yet shatter from a small internal impact makes it a popular curiosity to share and discuss.

BolognaBologna bottle

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