اشترك بالحزمة الذهبية واحصل على وصول غير محدود شمرا أكاديميا
تسجيل مستخدم جديدSunsets, tall buildings and the Earths radius
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P.K.Aravind
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It is shown how repeated observations of the sunset from various points up a tall building can be used to determine the Earths radius. The same observations can also be used, at some latitudes, to deduce an approximate value for the amount of atmospheric refraction at the horizon.
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