The library of Eratosthenes

Xiamen

Wednesday 26 March 2008 by perbosc

Xiamen International School , China

photo gallery

latitude : 24° 27’ N
longitude : 118° 4’ E
date : 26/03/2008
gnomon : 100cm

shadow angle
39.75 cm 21.68°
41 cm 22.29°

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