Is Glass a Liquid or a Solid?

[Sand Rat]

Originally posted by Dragonsreach
Ok A thought occurs to me;

If Glass is a liquid how can we get Toughened, Laminated or even Bulletproof glass?


lol

Shear Factor. The same way you can walk on a liquid solution of cornstarch.

 

[Einion]

Well you learn something new every day:

\"Glass is generally treated as an amorphous solid rather than a liquid, though both views can be justified.\"

Einion

 

[airhead]

Originally posted by skeeve
Neither. Glass is the third state. From a casual observer point of view it is \"solid\" but on the molecular level glass doesn\'t have ordered microcrystalic structure.

Anyway, the linky is bellow

http://math.ucr.edu/home/baez/physics/General/Glass/glass.html

Ding-ding-ding.

Glass has no crystaline structure - therefore it is not a solid. Ice has a crystaline structre as does every other solid. Glass is an extreemly viscus liquid.

& Mike, most bullet-resistant is not glass, but acrylic. One of the leading manufacturers brings his product to a major shoot each year just to gather info.

 

[squidders]

Originally posted by airheadIce has a crystaline structre as does every other solid.

Like Bone and wood - right? lol

 

[Roger Bunting]

Water can exist as a solid, liquid and gas all at the same time.

 

[veggiemanuk]

Originally posted by Dragonsreach
Ok A thought occurs to me;

If Glass is a liquid how can we get Toughened, Laminated or even Bulletproof glass?


lol

As Gurney Halleck would say, The slow blade penetrates the shield.

Maybe you could pass solid objects through glass if they were moving slow enough

 

[airhead]

Originally posted by squidders

Originally posted by airhead
Ice has a crystaline structre as does every other solid.

Like Bone and wood - right? lol

Yes, the calcium in bone has a crystaline lattice.
The same goes for the cell walls in the wood. You get into some weird organics and get way beyond me quickly there.

 

[squidders]

I meant bone, not calcium... Yes calcium is part of the bones makeup but not all. Bone is considered a solid and is not entirely crystalline.

Wood is just plain weird and is certainly not an organized structure at any level.

I think the whole liquid/solid/gas debate is more to do with human need to quantify than to allow for things to be unique... we always strive to have the fewest categories and the neatest charts.

 

[Rodnik]

I thought there were sub classifications of solids---

Crystalline solids, amorphous solids, and polycrystalline solids----each dependent on the structure....

Glass would be classified as an amorphous solid in this case---
Also, I thought the structure of glass was a result of it being supercooled from a liquid state....and if you cooled it normally, you would see the semblance of a crystalline structure.

 

[Dragonsreach]

Originally posted by squidders
Wood is just plain weird and is certainly not an organized structure at any level.

Huh?

Care to clarify?

 

[squidders]

While I don\'t understand it all, this breaks down the compounds found in wood and how they form the structure.

http://www.faculty.sfasu.edu/mcbroommatth/Lectures/Wood_Science/Lecture_3_Wood_Cells.PDF

The bottom line is that according to the oxford english dictionary:

• adjective (solider, solidest) 1 firm and stable in shape; not liquid or fluid. 2 strongly built or made. 3 not hollow or having spaces or gaps. 4 consisting of the same substance throughout. 5 (of time) continuous. 6 able to be relied on; dependable or sound. 7 Geometry three-dimensional.

• noun 1 a solid substance or object. 2 (solids) food that is not liquid. 3 a three-dimensional body or geometric figure.

— DERIVATIVES solidity noun solidly adverb solidness noun.

— ORIGIN Latin solidus.

I would say that it (glass) very much conforms to a lot of the above.

 

[MPJ]

Does it really matter in our day to day lives? :drunk:

Do people have a gaseous state? I know I have some pile of gas at the moment. :drunk:

Can I be serious for more than 5 minutes? :drunk:

All this glass sciency stuff is going to make my head explode. :drunk:

 

[Avelorn]

This is important god damnit! I am prepared to declare war on the liquidists if this escalates any further! Glass is a solid, by the power of greyskull, it is a SOLID!

 

[Rodnik]

-

Yep..I think so too, Av....a definite shape and a definite volume....
A solid, at its simplest definition.

 

[Shawn R. L.]

I\'ve heard this \'liquid\' thing for a long time and maybe it\'s some sort of \'official molecular\' thing but the common sense says \'of course its\' not a liquid\'.

Same for balsa wood....technically it\'s a hardwood....................right.lol

 

[diddy lemon1]

its solid, the only theory to say its liquid is that on old windows its wider at the bottom which has become proven is a result of being being unable to do otherwise at the time

 

[eastman]

When assembling window panes using glass of unequal thickness, the thickest part is placed at the bottom to make it easier to assemble.

Crystalinity is not a requirement for a material being solid.

 

[Einion]

Originally posted by Shawn R. L.
Same for balsa wood....technically it\'s a hardwood....................right.lol

Yeah, but the hardwood/softwood thing is not about hardness, they\'re just unfortunate holdovers from the original origins of the terms

Einion

 

[veggiemanuk]

Originally posted by eastman
When assembling window panes using glass of unequal thickness, the thickest part is placed at the bottom to make it easier to assemble.

But how do you explain a 100% correct instalation then? This is millions of windows we are talking about here. How come none have been put in the wrong way around?

 

[squidders]

you checked every single one?????? kudos to you lol