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glass is a liquid?

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Glass is solid.

Rumor of glass being a "liquid" supposedly started years ago when they couldn't make flat glass without flaws, lumps, etc.... Some of that glass was actually made by spinning it in a circle, eventually the glass on the outer part was thicker than the inside part....So people look at old glass with these lumps and assume that it has moved, sunk while in actuality it was always like that.
 
Originally posted by: Wag
Best science lesson is to be taken to the Corning factory in upstate NY where you can walk through the factory while they're blowing glass. Sweet.🙂

They make the lenses of giant optical telescopes, and have on display some of the rejected ones. They have to be super-perfect or they're garbage.

Hi, my names Glass. I'm very popular at the Corning factory. 😉
 
Originally posted by: LoKe
Originally posted by: biggestmuff
Not a liquid. It is a plasma; one of the four states of matter.

Woot, four!

technically, there are 6 or 7 total (it's one of those two numbers)😀😀

i think i read it in a popular science article
 
Originally posted by: mugs

Originally posted by: Mucho
and the tomato is a fruit.

and a vegetable

What exactly is a "vegetable"? And there was a supreme court ruling on the case? :shocked:

EDIT: oh duh, the court case was tax-related.
 
Originally posted by: Aflac
Originally posted by: mugs

Originally posted by: Mucho
and the tomato is a fruit.

and a vegetable

What exactly is a "vegetable"? And there was a supreme court ruling on the case? :shocked:

EDIT: oh duh, the court case was tax-related.

Hah, yeah. There was a question on Jeopardy a while back (final jeopardy) about which state had made the tomato its state fruit AND state vegetable, so I looked it up on Wikipedia. For the science-minded it's more accurate to call it a fruit, but for cullinary purposes it's a vegetable, so you can't say either is more accurate without a context.

I did get a chuckle out of the supreme court ruling on the classification of the tomato.
 
Originally posted by: Fenixgoon
Originally posted by: LoKe
Originally posted by: biggestmuff
Not a liquid. It is a plasma; one of the four states of matter.

Woot, four!

technically, there are 6 or 7 total (it's one of those two numbers)😀😀

i think i read it in a popular science article

Solid
Liquid
Gas
Plasma
Bose-Einstein Condensate
Degenerate Neutrons (neutron star)
Quark-Gluon Plasma

Those are the ones I'm pretty sure of. Superfluids might be another (like liquid helium), but I'm not sure if I'd classify them as a separate state. There are others which are kind of borderline too I guess... Fermi gases, Wigner crystals...
 
Originally posted by: nakedfrog
Originally posted by: RadiclDreamer
For proof check the windows of a really old building and see that its thicker near the bottom than at the top.

This is a popularly held misconception. That has to do with the manufacturing methods.

huh???

No, it's thicker at the bottom because it can be thought of as a super-thick viscous fluid. (Amorphous solid is better though). Why do you think you never see the thickest part towards the top in older buildings? Is it because the construction workers unfailingly oriented the pane of glass the same way?
 
Originally posted by: DrPizza
Originally posted by: nakedfrog
Originally posted by: RadiclDreamer
For proof check the windows of a really old building and see that its thicker near the bottom than at the top.

This is a popularly held misconception. That has to do with the manufacturing methods.

huh???

No, it's thicker at the bottom because it can be thought of as a super-thick viscous fluid. (Amorphous solid is better though). Why do you think you never see the thickest part towards the top in older buildings? Is it because the construction workers unfailingly oriented the pane of glass the same way?

Originally posted by: azoomee
Glass is solid.

Rumor of glass being a "liquid" supposedly started years ago when they couldn't make flat glass without flaws, lumps, etc.... Some of that glass was actually made by spinning it in a circle, eventually the glass on the outer part was thicker than the inside part....So people look at old glass with these lumps and assume that it has moved, sunk while in actuality it was always like that.
 
Originally posted by: Aflac
Originally posted by: LoKe
Originally posted by: biggestmuff
Not a liquid. It is a plasma; one of the four states of matter.

Woot, four!

I recall something about there being 5. The extreme opposite of plasma... don't remember what it was called, but I think it had something to do with einstein.

Bose-Einstein condensate.

Originally posted by: deepred98
technically can't most things be a liquid, solid, and gas under the right conditions?

Supercritical fluid.

Originally posted by: DrPizza
Originally posted by: nakedfrog
Originally posted by: RadiclDreamer
For proof check the windows of a really old building and see that its thicker near the bottom than at the top.

This is a popularly held misconception. That has to do with the manufacturing methods.

huh???

No, it's thicker at the bottom because it can be thought of as a super-thick viscous fluid. (Amorphous solid is better though). Why do you think you never see the thickest part towards the top in older buildings? Is it because the construction workers unfailingly oriented the pane of glass the same way?

Umm..duh? It's much more stable and less likely to break that way.

You ever notice how the roof of a building is always on top...do you really think the construction workers unfailingly orient it that way? Likely story!😛
 
Originally posted by: RadiclDreamer
Yes, just moves very slowly

I had windows in my house that were thicker at the bottom.
Aprox 100 years old.

PSA; single pane sash weight window panes break easy.

I have been slowly replacing my old windows, with New vinyl
insulated double pane ones.
 
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