Eratosthenes

Ioannina, Greece

September 2013

Ioannina Greece Experimental College 39°40’N 20°51’E
Date Gnomon Shadow Angle
september 14 100 cm 86 cm 36°18’ = 36.316°
september 15 100 cm 74.6 cm 36°43’ = 36.723°
september 16 100 cm 75.5 cm 37°3’ = 37.053°
september 17 100 cm 76.5cm 37°24’ = 37.416°
september 18 100 cm 78.2 cm 38°1’ = 38.025°
september 19 100 cm 79 cm 38°18’ = 38.309°
september 20 100 cm 80 cm 38°39’ = 38.66°
september 21 100 cm 81.5 cm 39°10’ = 39.18°
september 22 100 cm 82.5 cm 39°31’ = 39.523°

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