Exploding IKEA Glassware

James_H

And I like to roam the land
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#1
I spoke to a colleague yesterday who had a spooky story about a glass spontaneously shattering on her kitchen shelf, when she was a good distance from it. Was it a poltergeist? No, she did some research online and apparently it's fairly common with some glasses from IKEA.

And the tables blow up too!

I wonder if this phenomenon has ever led to anyone believing their house was haunted?
 

Shady

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#3
Many years ago we had a glass measuring jug, it was washed and put on the sink ready to go in the dishwasher, i was standing about 4-5 feet from it when it suddenly blew up and flew across the kitchen, it made me jump, but fortunately it did not hit me, i went over to look at the debri and it was like little tiny squares, bit like when a windscreen shatters
 

James_H

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#4
Many years ago we had a glass measuring jug, it was washed and put on the sink ready to go in the dishwasher, i was standing about 4-5 feet from it when it suddenly blew up and flew across the kitchen, it made me jump, but fortunately it did not hit me, i went over to look at the debri and it was like little tiny squares, bit like when a windscreen shatters
The little squares means it was made of tempered glass. As far as I understand it from the link above, glass may spontaneously crack at any time due to flaws and temperature changes. But the way tempered glass is structured means that if it breaks at all, the whole object breaks, leading to such dramatic 'explosions'.
 

EnolaGaia

I knew the job was dangerous when I took it ...
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#6
Tempered glass is deliberately manipulated so as to induce internal compressions that (if balanced) give the overall mass a higher strength than ordinary glass. In effect, the internal structure of tempered glass is under stress. Anything that destabilizes this network of counteracting stresses / tensions / compressions can cause the whole thing to disintegrate.

For example, a nick or other damage along an exposed edge can easily destabilize the glass to the point a minor shock (including thermal shock or gradients) can cause it to crumble like a house of cards.

See Also:

Mysteriously Exploding Or Disintegrating Glass Objects
https://forums.forteana.org/index.p...loding-or-disintegrating-glass-objects.22741/
 
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JamesWhitehead

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#7
During a tense moment, on the eve of my driving test, when the car was stationary, the driver's side window shattered violently. My instructor, always given to panic, dived under the dashboard, convinced someone was shooting at us! Luckily, on a warm summer's day, the window was wound down to shoulder-height and the pieces fell mainly into the door itself, some onto the floor of the car.

Maybe it was a harbinger of bad news: the test that afternoon was cancelled, due to heavy traffic on the route! :frust:
 

James_H

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#9
I had a pyrex dish explode in the oven, I'll try and find the pic. It's not uncommon.
I had an Ikea bottle blow yesterday! It was very much explicable: I was pouring in water that was a bit too hot. There was a loud bang and a roughly circular bit of glass about an inch across came flying out: the rest stayed intact.
 

Spudrick68

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#12
I've had a glass of whisky crack in my hand in a pub years ago. I think that the glass had just come out of the wash and was still warm and the whisky was cool.
 
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