Why 'Prince Rupert's Drop' Glass Is Strong Enough to Shatter a Bullet (2023)

susam | 63 points

There's a pretty amazing video here showing a Prince Rupert's drop defeaing a hydraulic press: https://www.youtube.com/shorts/ns7PQjjqHIo

aragonite | 5 days ago

When was this article written? Last update is 2023 (so the title should at least reflect this) but down in the article talks about Gorilla glass by Corning as a novelty with possible future uses in smartphones.

Sent from a Gorilla glass smartphone with a corner almost broken ^^;

darkwater | 6 days ago

video in lieu of the article's broken link:

Bullet vs Prince Rupert's Drop at 150,000 fps - Smarter Every Day 165: https://www.youtube.com/watch?v=24q80ReMyq0

test1235 | 6 days ago

The best part is if you melt away the weak tail, all you’re left with is the strong bulb.

dyauspitr | 6 days ago

My first thought was to see it under hydraulic press and the internet delivered.

undebuggable | 6 days ago

What it takes to actually destroy it (by applying pressure at a wrong point)?

qwerty456127 | 5 days ago

Someone needs to invent a way to make tank armor out of Prince Rupert's Drop glass.

dghughes | 5 days ago

They must have gotten the librarian in the video from Central Casting.

ChrisMarshallNY | 5 days ago
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| 5 days ago