Glass work station exploding but HOW?!

[Stella]

Nothing but a few papers, a note pad and coffee mug on the glass work surface (1/4" thick) and this is what I find this morning (glad the pup and 'puter and I weren't here when it exploded) â€" sorry for the "IZzy" pictures:

[Ddan]

Looks like tempered glass.  It doesn't take much of a scratch to make it do that.

[Randimus Maximus]

Looks like tempered glass.  It doesn't take much of a scratch to make it do that.

It happened overnight.  That's what she showed up to this morning.

[Latinbalar]

I'm sure the glass was cold and the mug hot. which causes the glass to fracture like that.  Our landlord tried cleaning our fridge and he pulled the glass from the fridge to the outside in hot weater and crash turned into pebble glass.

[IZ]

sorry for the "IZzy" pictures:

Gahdammit Randy..stop signing in as Stella!

[ducpainter]

Where was the thermos/coffee cup when you left the previous evening?

[Randimus Maximus]

Gahdammit Randy..stop signing in as Stella!

She's seen enough of your work to recognize it.

[Stella]

I'm sure the glass was cold and the mug hot. which causes the glass to fracture like that.  Our landlord tried cleaning our fridge and he pulled the glass from the fridge to the outside in hot weater and crash turned into pebble glass.

Ordinary glass, yes that would happen but this is tempered which can withstand some heat.  (I watched my mom pour super hot chocolate into a glass pitcher when I was a wee one.  I made a mental note on that one for sure!)

Where was the thermos/coffee cup when you left the previous evening?

Just sitting on top of the desk - the glass part.  I hadn't used it in several days.  We have 5 of these desks in our office.  I'm the newest one and have been using it for a year w/o incident.  We're all a little nervous now.  This is what I just found in the interwebs:

"Tempered glass breaks in a unique way. If any part of the glass fails, the entire panel shatters at once.  Tempered glass might also fail long after the event that caused the failure. Stresses continue to play until the defect erupts, triggering breakage of the entire panel."   

Interesting! (At least to my geek self anyway.)     

She's seen enough of your work to recognize it.

Sorry IZ, couldn't help myself.  All the other kids do it too!   

Hey wait!  I did set a NAIL on my desk the other day.....!   

[Randimus Maximus]

Sorry IZ, couldn't help myself.  All the other kids do it too!   

Hey wait!  I did set a NAIL on my desk the other day.....!   

Oh Snap!

[IZ]

Oh Snap!

Uh huh..you must be at P's place on your Mac..while she's on her Mac and you're feeding her these lines. 

[ducpainter]

"Tempered glass breaks in a unique way. If any part of the glass fails, the entire panel shatters at once.  Tempered glass might also fail long after the event that caused the failure. Stresses continue to play until the defect erupts, triggering breakage of the entire panel."   

Interesting! (At least to my geek self anyway.)     

That's what Dan was referring to.

[somegirl]

"Tempered glass breaks in a unique way. If any part of the glass fails, the entire panel shatters at once.  Tempered glass might also fail long after the event that caused the failure. Stresses continue to play until the defect erupts, triggering breakage of the entire panel." 

Yup, I discovered that the hard way, once working in the dishroom in college I had a Pyrex bowl explode in my hand leaving glass splinters in my thumb.

[Grampa]

aliens

[Randimus Maximus]

Uh huh..you must be at P's place on your Mac..while she's on her Mac and you're feeding her these lines. 

you think she can't come up with those on her own?

she is so kicking your ass the next time she sees you!

[IZ]

she is so kicking your ass the next time she sees you!

That's OK.  I'll let her!