Eratosthenes

Allahabad, India

 National science Academy

Allahabad India National science Academy 25°27’N 81°50’E

 09/06/2008

Allahabad
latitude 25° 27’ N
longitude- 81° 50’ E
gnomon - 60 cm
shadow - 3 cm
angle- 2.8

 16/06/2008

Latitude 25.450 N
Gnomon- 59 cm
shadow - 2.4 cm
angle - 2.329 degree
place - National science Academy-india,Allahabad
Distance between adilade and allahabad - 6735 km
measured angle- 61.329 degree
so the circumference - 39534.314 km.
deepak sharma


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