Eratosthenes festivities in Bibliotheca Alexandrina (2021 June 21st)

Bild des Benutzers eric vayssie

For reasons of organization of the June 21 festivities at the Bibliotheca Alexandrina, our measures are shared on June 18.

 

Our measurements carried out between June 14 and 18 have only a small difference compared to that of June 21 and will remain valid for the calculations.

 

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La main à la pâte Stiftung Sonnentaler