Eratosthenes

Valladolid, Spain

June 2011

Valladolid Spain CEIP Narciso Alonso Cortes 41°39’N 04°42’W
Date Gnomon Shadow Angle
june 21st 100 cm 33 cm 18°15’ = 18.263° N

Attached documents

21 June 2011
Document : Zip
3.7 Mb

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