Question
Sat May 26, 2012 By: Ajinkya
 

when tall buildings are constructed on earth the duration of daynight slightly increase.why?

Expert Reply
Mon May 28, 2012
when tall building is constructed, soil and minerals taken from mines(deposited below  the earth) are may be used. so moment of inertia increases...so, angular velocity decreases.. hence, duration of day and night increases.
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