Birdwatch Note Rating
2023-07-16 04:32:41 UTC - HELPFUL
Rated by Participant: 0ADE662B5162F1ADC2457A6A151C58DCC7F4820C3729AEBEF9CD81D54FC4021D
Participant Details
Original Note:
Ancient Greeks in the Hellenistic period knew the earth was round thanks to Pythagoras in 500bc and Aristotle (350bc). This was prior to Eratosthenes’ experiments at Alexandria and Syene (230bc). The experiment was only used to measure the earth’s circumference. https://starchild.gsfc.nasa.gov/docs/StarChild/questions/question54.html https://www.loc.gov/collections/finding-our-place-in-the-cosmos-with-carl-sagan/articles-and-essays/modeling-the-cosmos/ancient-greek-astronomy-and-cosmology#:~:text=During%20a%20lunar%20eclipse%2C%20when,the%20Earth%20is%20a%20sphere.
All Note Details