2007-07-29 09:07:01 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Glas is solid at room temperature. But it's an amorphous solid material.
liquid material: does not resist against a changing of its form, but it resists completely against changings of its volume. That's NOT what glass does, it does the opposite, as all solid materials do.
The definition of a solid material is NOT that it has a crystalline structure. Its the resistance against atomic displacement / movement. Glass has all characteristics of a solid material, it's just not crystalline but amorphous, that means: atoms are arranged irregular.
2007-07-31 00:20:45 · answer #1 · answered by Schrödingers Katze 4 · 0⤊ 0⤋
No, and no.
People frequently cite cathedral windows being thicker at the bottom as evidence that glass flows. This is wrong. Ancient processes for making plate glass usually ended up making windows thicker at one end. Doing the sensible thing, people installed the windows with the thicker end on the bottom. However, there are numerous examples of forgetful craftsmen installing windows upside-down, with the thicker glass at the top.
Glass is most definitely a solid at room temperature. One feature of solids is that when you apply a small stress, they flex. When the stress is removed, they bounce back to their original position. Contrast this with liquids. When you apply a stress to a liquid, it continuously deforms without stopping, and it doesn't bounce back when the stress is removed.
2007-07-29 09:13:53 · answer #2 · answered by lithiumdeuteride 7 · 0⤊ 0⤋
Not, it is a solid. But you must, as with all such, specify the environmental conditions. Glass is a liquid at extremely high temperatures. However, I do believe that it can flow at room temp. The movement may be microscopically small, but I believe it's there. A lot of things can flow in a solid state if under pressure of some sort.
2007-07-29 09:13:56 · answer #3 · answered by JimGeek 4 · 1⤊ 0⤋
Glass is a fluid.
Technically it is a "super-cooled liquid."
"Glass" is not the name of any specific material, but it is the name of the transitional phase of a molten liquid form of a material the normally forms crystalline structure which has been cooled too fast for the crystalline structure to develop.
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2007-07-29 10:15:58 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Glass is unquestionably an extremely viscous fluid, yet that's not the rationalization previous living house windows look the way they do. A researcher as quickly as calculated the pass cost of glass, and located that it would take hundreds of thousands of years for the backside of a pane of glass to thicken via even a millimeter. the rationalization previous living house windows look the way they do is by technique of the fact glassmakers weren't very stable interior the olden days.
2016-11-10 11:24:46 · answer #5 · answered by Anonymous · 0⤊ 0⤋
We were at the Corning museum in New York. The speaker was alluding to glass not being technically a solid or a liquid because of its crystal structure or lack thereof.
2007-07-29 10:16:31 · answer #6 · answered by astatine 5 · 2⤊ 1⤋
Glass is a liquid. It's just very very viscous (no, not vicious).
Over a long period of time is does flow, which is why older panes of glass make the view look slightly wobbly.
2007-07-29 09:15:01 · answer #7 · answered by SV 5 · 1⤊ 0⤋
Solid i would say rather than liquid thank you
2007-07-29 09:15:31 · answer #8 · answered by jeff 4 · 0⤊ 0⤋
No.
Its a solid.
Modern glass does not flow, old glass does.
But then lead flows.
2007-07-29 09:11:09 · answer #9 · answered by Anonymous · 0⤊ 0⤋