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Why does snow stick to windows and other objects?


apollo2011

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things like glass etc... aren`t actualy smooth either on a micro scale, it`s full of ridges and pits like the surface of the moon.

snowflakes are also made up of tiny and VERY SHARP crystaline structures, as sharp as 1 molecule wide in places, these will act like an array of little hooks, not quite like velcro, more like a Shuriken (ninja star) and will quite easily bury itself into one of the surface materials inperfections, this will then build up over time as they begin to get tangled in each other. eventualy when the total mass exceeds the adhesion to the surface, it slides off as one peice and starts over again :)

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