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Science Forum Index » Physics - Research Forum » Sliding metal plate on a slanting roof
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| jumanicus |
 Posted: Thu Oct 05, 2006 3:36 am |
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Guest
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It is said that a metal plate kept on a slanting roof (say made of
concrete) slides down (although slightly) over a period of many days
due to repeated heating and cooling during the day and night. Ofcourse
it is assumed that friction is sufficient to prevent sliding due to
gravity alone. Somehow repeated expansion and contraction of the plate
during the day and night causes this phenemonon. Can anyone expalin
what is happening? |
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