Do you know there’s a piece of glass that can stop a bullet but breaks with a single touch? It’s called a Prince Rupert’s Drop! When hot glass falls into cold water, it cools so fast that the outside becomes super hard — stronger than steel! You can even shoot it, and the bullet will break instead! But here’s the crazy part — if you just flick its tiny tail, the whole thing explodes into dust in a second. How can something this strong also be so fragile? | Epixology

How STRONG is a Prince Rupert's Drop?! | Hydraulic press channel

Prince Rupert's Drops | FactSheetor