Hoạt động: Earth-Moon
Moon orbit
Sự khó khăn: ★
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Didactical activities about tides
Sự khó khăn: ★
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The shape of the Earth and the sky
Sự khó khăn: ★
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Aristarcho’s proportio
Sự khó khăn: ★
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Why are the eclipses dancing through the calendar?
Sự khó khăn: ★
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Solar eclipses : luminosity, temperature, area covered…
Sự khó khăn: ★
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Solar eclipses : a “scale model”
Sự khó khăn: ★
Moon, phases and eclipses
Sự khó khăn: ★
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