wht is the glass of window panes of very old buildings found to be thicker at the end than at the top?
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as glass is super cooled liquid
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Hey !!
Glass is an amorphous solid which is a supercooled liquid of high viscosity and hence possess fludity. Due to this property it is thicker at the bottom than at the top. Milkiness of glass is due to the fact that it undergoes heating during the day and cooling at night, annealing over a number of years. As a result, it acquires some crystalline character.
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