2. Who has been credited with inventing the gnomon and the sundial?
Diogenes Laertes
Anaximander
Suda
Thales

3. Where did Eratosthenes compute the first reasonably good measurement of the Earth's circumference
Ionia
Crete
Egypt
Athens

4. Who concluded the earth went around a fixed sun?
Plato
Eratosthenes
Thales
Aristarchus

5. Which constellation is circumpolar?
Arktos

Pleiades Orion
Hyades

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Correct answers: