Merklisten
The Noon Day Project
Measuring the circumference of the earth.
The Librarian who Measured the Earth - Details of how Eratosthenes (275-194 BC) the chief librarian of the finest library of his time made his remarkable measurement.
Measuring the circumference of the earth.
The Librarian who Measured the Earth - Details of how Eratosthenes (275-194 BC) the chief librarian of the finest library of his time made his remarkable measurement.