A related effect is the so-called "bologna bottle" used in magic tricks. The specially-prepared bottle or glass is shown to be unusually strong on the outside, can even drive a nail. But drop a small hard object inside, even a coin, and in a moment or two the whole thing shatters.
The glass is heated then rapidly cooled on the outside, with the inside cooling more slowly. This leaves the outside tempered, but enormous tension on the inside. The tiniest nano-crack on the inside propagates throughout the structure until the whole thing shatters.
Very cool. This is the same principle as tempered glass.
When a thing is funny, search it carefully for a hidden truth. - George Bernard Shaw
July 01, 2018, 01:10 AM
M-11
I are smarter today.
"Common sense is wisdom with its sleeves rolled up." -Kyle Farnsworth "Freedom of Speech does not guarantee freedom from consequences." -Mike Rowe "Democracies aren't overthrown, they're given away." -George Lucas
July 01, 2018, 12:32 PM
preten2b
Me too, thank you for posting.
Not sure if it will apply to anything I do, ever. But cool none the less.
------------------ The plural of anecdote is not data. -Frank Kotsonis
July 01, 2018, 12:44 PM
mbinky
"Goggle up science is about to happen!"
That was amazing.
July 01, 2018, 02:18 PM
sigarmsp226
That was freakin cooooool....I too am smater now than I was 10 minutes ago....Mark
July 01, 2018, 03:11 PM
LS1 GTO
quote:
Originally posted by RogueJSK:
quote:
Originally posted by Redleg06: What is Prince Rupert's Drop? I'm glad you asked...
"we've gotta roll with the punches, learn to play all of our hunches Making the best of what ever comes our way Forget that blind ambition and learn to trust your intuition Plowing straight ahead come what may And theres a cowboy in the jungle" Jimmy Buffet
July 01, 2018, 05:16 PM
FishOn
Yeah, I couldn't believe it when I first saw it. Pretty fascinating stuff.
July 01, 2018, 06:29 PM
hberttmank
I had never heard of a Prince Rupert's Drop, that is pretty cool. Thanks for posting.
"But, as luck would have it, he stood up. He caught that chunk of lead." Gunnery Sergeant Carlos Hathcock
July 01, 2018, 06:39 PM
Warhorse
quote:
Originally posted by hberttmank: I had never heard of a Prince Rupert's Drop, that is pretty cool. Thanks for posting.
Same here.
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July 01, 2018, 08:55 PM
1s1k
Very cool! I’ve never heard of that before.
July 01, 2018, 08:58 PM
flesheatingvirus
Nice. Less than half the velocity of a detonation, but still cool.
________________________________________
-- Fear is the mind-killer. Fear is the little-death that brings total obliteration. I will face my fear. I will permit it to pass over me and through me. And when it has gone past me I will turn the inner eye to see its path. Where the fear has gone there will be nothing. Only I will remain. --
July 01, 2018, 09:51 PM
Ozarkwoods
Wow I learned something today! Be careful when you are going after tail!!
...thank you FishOn for starting this thread and Redleg06 for the link...that was very cool!