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Greek mathematician and astronomer who estimated the circumference of the earth and the distances to the moon and sun (276-194 BC)
Answer for the clue "Greek mathematician and astronomer who estimated the circumference of the earth and the distances to the moon and sun (276-194 BC) ", 12 letters:
eratosthenes
Word definitions for eratosthenes in dictionaries
Wikipedia
Word definitions in Wikipedia
Eratosthenes is a relatively deep lunar impact crater that lies on the boundary between the Mare Imbrium and Sinus Aestuum mare regions. It forms the western terminus of the Montes Apenninus mountain range. The crater has a well-defined circular rim, terraced ...
Usage examples of eratosthenes.
I envy those who will succeed in circling the two hundred and fifty thousand Greek stadia so ably calculated by Eratosthenes, the round of which would bring us back to our point of departure.
The base held an inscription in Greek, which Eratosthenes verified by reading slowly to himself.
No chart will ever say to you, Eratosthenes, you will die at sunup tomorrow.
At most your chart will say, Eratosthenes, you will be presented with the possibility of dying on such and such a day, and perhaps at such and such an hour.
One thing was certain: the fates of Eratosthenes and Hor-ent-yotf were inextricably interwoven, like designs into a funerary shroud.
An hour later Khor, Eratosthenes, and Ne-tiy had wound the last of the linen strips around the hydraulic tubes, refilled the depleted oil surge tank, and secured the amphora of natron in the storage locker.
I have read widely in your Library, Eratosthenes, and I can cite your own laws and applicable cases.
She glanced once at Eratosthenes, then followed the hawk-priest away from the group.
He had followed closely the negotiations between Eratosthenes and Hor-ent-yotf.
Even Eratosthenes, who had suspected something like this would happen, was stunned.
He held the priest with one hand and tossed something to Eratosthenes with the other.
Ne-tiy watched with uneasy curiosity as Eratosthenes opened the chest and carefully removed the little statue of Atlas, his back and arms still bent to receive his as yet invisible burden.
Khor, Eratosthenes, and Ne-tiy had wound the last of the linen strips around the hydraulic tubes, refilled the depleted oil surge tank, and secured the amphora of natron in the storage locker.
For I loved the Moon, and now I knew that the creeping moss of Aristarchus and Eratosthenes was not the only life she had brought forth in her youth.
The last sentence may be interpreted by the notice of Suidas, who informs us that Apollonius was a contemporary of Eratosthenes, Euphorion and Timarchus, in the time of Ptolemy Euergetes, and that he succeeded Eratosthenes in the headship of the Alexandrian Library.