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ERATOS PROJECT [home page]
Eratos collaborative measure
Pedagogical Module
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Parallelism of solar rays
Geogebra geometric figure
2019 Highlights
TASK FORCES
Take the measure
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20 March Equinox
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23 September Equinox
22 December Solstice
No NooN SHADOW DAYS
05 April 2019 (Guarne)
09 May 2019 (Hyderabad)
06 September 2019 (Guarne)
100 Hours of Astronomy
Bibliotheca Alexandrina 2019
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ERATOS QUIZ
Evaluation
month tables 2021
Port Said EGYPT