i had to leave school to support an ill parent and ...
2007-07-27 18:26:21 · 5 answers · asked by reedtexass 3 in Science & Mathematics ➔ Physics
I think you've heard that glass is a FLUID, not liquid.
A fluid is anything that flows. Granted, glass flows very, very slowly, but it still does.
Anyway, just guessing what it is that you're asking. Hope I've helped.
But just so we're clear,... glass is a solid (unless it's molten).
2007-07-27 18:36:10 · answer #1 · answered by ╡_¥ôò.Hóö_╟ 3 · 1⤊ 1⤋
Lithiumdeuteride's answer is right on the money, and deserves the "best answer" when you award it.
I wasn't going to add anything, but it occurred to me that one reason this rumor got started is because of the way glass used to be made. Modern glass making techniques create large, nearly flawless panes of clear glass. In the old days, glass was mouth blown from a pipe, scored, and spun. This produced a rondel, a round piece of glass which was thicker in the center and flatter on the edge. The rondel might then be cut, stained, and leaded to form a plate glass window. The artisans who fabricated these windows assembled them so that the thickest piece of glass was at the bottom. This was done to help increase the structural integrity of the finished window. It gives old glass windows the appearance of having ever so slightly sagged over the centuries, where in fact that was simply the way the window was originally assembled, and is a possible explanation for the "urban legend" of flowing glass.
2007-07-28 01:40:48 · answer #2 · answered by Anonymous · 1⤊ 1⤋
It isn't. Glass is a solid. Don't believe any stories you hear about cathedral windows.
It flexes elastically when stress is applied, and bounces back when the stress is removed. This is a key property of solids. Liquids, on the other hand, cannot support shear stress, and will shear perpetually under any shear stress, no matter how small.
2007-07-28 01:30:52 · answer #3 · answered by lithiumdeuteride 7 · 3⤊ 1⤋
just like mercury. Why isn't mercury a liquid?
mercury is a metal that is liquid in room temperature.
2007-07-28 10:38:25 · answer #4 · answered by gataktsu 2 · 0⤊ 0⤋
well.......I quit school in the 10th grade but the only explanation that i would have is that when it is melted it is liquid. but.........that doesn't make sence to me! LOL I really hope that you get the answer that you are looking for! I was just fishing, I really have no idea!
2007-07-28 01:35:49 · answer #5 · answered by in His image 6 · 0⤊ 2⤋