Eratosthenes

Allahabad, India

June 2008

Flag City Country School Latitude (°) +N/-S Longitude (°) +E/-W
Allahabad India National science Academy 25.450 81.833
Date Gnomon Shadow Angle
June 06 60 cm 3 cm 2°51’ = 2.862°
June 16 59 cm 2.4 cm 2°19’ = 2.329°

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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